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19-0499; Rev 1; 7/98
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
General Description
The MAX9000 family features the combination of a highspeed operational amplifier, a 185ns comparator, and a precision 1.230V reference. These devices operate from a single +2.5V to +5.5V supply and draw less than 500A of quiescent current. The MAX9001/MAX9004 feature a shutdown mode that reduces supply current to 2A and puts the outputs into a high-impedance state, making them ideal for portable and battery-powered applications. The amplifiers in the MAX9000/MAX9001/MAX9002 are unity-gain stable with a 1.25MHz gain-bandwidth product, while the amplifiers in the MAX9003/MAX9004/MAX9005 are stable for closed-loop gains of +10V/V or greater with an 8MHz gain-bandwidth product. The input commonmode voltage extends from 150mV below the negative supply to within 1.2V of the positive supply for the amplifier, and to within 1.1V for the comparator. The amplifier and comparator outputs can swing Rail-to-Rail(R) and deliver up to 2.5mA and 4.0mA, respectively, to an external load while maintaining excellent DC accuracy. The unique design of the comparator output stage substantially reduces switching current during output transitions, virtually eliminating power-supply glitches. The comparator's 2mV of built-in hysteresis provides noise immunity and prevents oscillations even with a slow-moving input signal. The MAX9000/MAX9001/ MAX9003/MAX9004 have an internal 1.230V 1% precision reference with a low 8ppm/C temperature coefficient that can sink or source up to 1mA. The amplifier and reference are stable with capacitive loads up to 250pF and 100nF, respectively. The comparator's inverting input is internally connected to the reference output in the MAX9000/MAX9003.
Features
o Op Amp + Comparator + Reference in Space-Saving MAX Package o +2.5V to +5.5V Single-Supply Voltage Range o 340A Supply Current (MAX9002/MAX9005) o Unity-Gain Stable (GBW = 1.25MHz) and Decompensated (AV 10V/V, GBW = 8MHz) Options o Op-Amp/Comparator Outputs Swing Rail-to-Rail o Ground-Sensing Inputs for Both Op Amp and Comparator o Op Amp Stable with Capacitive Loads up to 250pF o Internal 2mV Comparator Hysteresis o Fast 185ns Propagation-Delay Comparator o No Phase Reversal for Overdriven Inputs (Both Op Amp and Comparator) o Internal 1.230V Precision Reference (MAX9000/ MAX9001/MAX9003/MAX9004) 1% Initial Accuracy Low 8ppm/C Temperature Drift Sink or Source up to 1mA Stable for Capacitive Loads up to 100nF
MAX9000-MAX9005
Ordering Information
PART MAX9000EUA MAX9000ESA MAX9001EUB MAX9001ESD TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 8 MAX 8 SO 10 MAX 14 SO
________________________Applications
Single-Supply ZeroCrossing Detector Instruments, Terminals, and Bar-Code Readers Keyless Entry Photodiode Preamps Smart Card Readers Infrared Receivers for Remote Controls Sensor Signal Detection
Ordering Information continued at end of data sheet. Pin Configurations and Typical Operating Circuit appear at end of data sheet. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
______________________________________________________________________________Selector Guide
PART MAX9000 MAX9001 MAX9002 MAX9003 MAX9004 MAX9005 INTERNAL PRECISION REFERENCE Yes Yes No Yes Yes No OP-AMP GAIN STABILITY (V/V) 1 1 1 10 10 10 SHUTDOWN No Yes No No Yes No OP-AMP GAIN BANDWIDTH (MHz) 1.25 1.25 1.25 8 8 8 PIN-PACKAGE 8 SO/MAX 10 MAX, 14 SO 8 SO/MAX 8 SO/MAX 10 MAX, 14 SO 8 SO/MAX 1
________________________________________________________________ Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468.
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VDD to VSS) ....................................-0.3V to +6V Voltage Inputs (AIN_, CIN_).............(VSS - 0.3V) to (VDD + 0.3V) Output Short-Circuit Duration (AOUT, COUT, REF) ...Continuous to either VSS or VDD Continuous Power Dissipation (TA = +70C) 8-Pin SO (derate 5.88mW/C above +70C).................471mW 8-Pin MAX (derate 4.1mW/C above +70C) ..............330mW 10-Pin MAX (derate 5.6mW/C above +70C) ............444mW 14-Pin SO (derate 8.3mW/C above +70C).................667mW Operating Temperature Range MAX900_E _ _...................................................-40C to +85C Maximum Junction Temperature .....................................+150C Storage Temperature Range .............................-65C to +160C Lead Temperature (soldering, 10sec) .............................+300C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = +2.5V to +5.5V, VSS = 0, SHDN = VDD (MAX9001/MAX9004 only), VCM(OP AMP) = 0, VAOUT = VDD / 2, VCM(COMP) = 0 (for MAX9001/MAX9002/MAX9004/MAX9005), COUT = low, IOUT(REF) = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = 5V and TA = +25C.) PARAMETER Supply Voltage Range SYMBOL VDD CONDITIONS Guaranteed by PSRR tests MAX9000/MAX9001/ MAX9003/MAX9004 Supply Current IDD MAX9002/MAX9005 Supply Current in Shutdown Shutdown Input Bias Current Shutdown Logic High Shutdown Logic Low OP AMP Input Offset Voltage Input Offset Voltage Temperature Coefficient Input Bias Current Input Offset Current Input Resistance Input Common-Mode Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio Output Resistance Output Short-Circuit Current Disabled Mode Output Leakage IOUT (DISABLED) RIN CMVR CMRR PSRR VOS TCVOS IBIAS MAX900_ES_ MAX900_ES_ AIN+, AINAIN+, AINDifferential or common mode Guaranteed by CMRR test MAX900_ES_, (VSS - 0.15V) VCM (VDD - 1.2V), VDD = 5.5V VDD = 2.5V to 5.5V AV = 1V/V Shorted to VSS Shorted to VDD V SHDN (0.3V x VDD), VAOUT = 0 to VDD -0.15 72 74 96 100 0.01 10 65 0.01 1 0.5 1 0.05 0.02 1000 VDD - 1.2 2 1 1.5 mV V/C nA nA M V dB dB mA A I SHDN IIN(SHDN) VIH(SHDN) VIL(SHDN) MAX9001/MAX9004 (V SHDN = 0) MAX9001/MAX9004 (V SHDN = 0 to VDD) 0.7 x VDD 0.3 x VDD VDD = 3V VDD = 5V VDD = 3V VDD = 5V MIN 2.5 410 450 340 375 2 1 TYP MAX 5.5 500 550 425 475 5 2.5 UNITS V A A A A V V
2
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Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.5V to +5.5V, VSS = 0, SHDN = VDD (MAX9001/MAX9004 only), VCM(OP AMP) = 0, VAOUT = VDD / 2, VCM(COMP) = 0 (for MAX9001/MAX9002/MAX9004/MAX9005), COUT = low, IOUT(REF) = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = 5V and TA = +25C.) PARAMETER SYMBOL VDD = 2.5V Large-Signal Voltage Gain AVOL VDD = 5.5V CONDITIONS VAOUT = 0.05V to 2.45V, RL = 100k VAOUT = 0.2V to 2.3V, RL = 1k VAOUT = 0.05V to 5.4V, RL = 100k VAOUT = 0.25V to 5.2V, RL = 1k RL = 100k Output Voltage Swing VOL / VOH VAIN+ - VAIN- 10mV RL = 1k Gain-Bandwidth Product Phase Margin Gain Margin GBW MAX9000/MAX9001/MAX9002 MAX9003/MAX9004/MAX9005 MAX9000/MAX9001/MAX9002 MAX9003/MAX9004/MAX9005 MAX9000/MAX9001/MAX9002 MAX9003/MAX9004/MAX9005 f = 10kHz, VAOUT = 2Vp-p, VDD = 5V MAX9000/MAX9001/ MAX9002 (AV = 1V/V) MAX9003/MAX9004/ MAX9005 (AV = 10V/V) MAX9000/MAX9001/ MAX9002 (AV = 1V/V) MAX9003/MAX9004/ MAX9005 (AV = 10V/V) MAX9000/MAX9001/ MAX9002 (AV = 1V/V) MAX9003/MAX9004/ MAX9005 (AV = 10V/V) VDD - VOH VOL VDD - VOH VOL MIN 94 84 94 86 TYP 125 115 120 106 1 1 140 60 1.25 8 75 80 30 40 0.009 % 0.028 0.85 V/s 6.0 6.9 s 2.1 2.5 f = 10kHz f = 10kHz 36 1 0.2 2 2 CLOAD MAX9000/MAX9001/MAX9002 (AV = 1V/V) MAX9003/MAX9004/MAX9005 (AV = 10V/V) MAX900_ES_ (Notes 1, 2) MAX900_ES_ VDD = 5V (Notes 2, 3) 250 250 1 1 4 7 2 pF nV/Hz fA/Hz s s s pF 5 5 250 100 MHz degrees dB mV dB MAX UNITS
MAX9000-MAX9005
Total Harmonic Distortion plus Noise
THD+N
Slew Rate
SR
VDD = 5V, VAOUT = 4V step
Settling Time to within 0.01%
VDD = 5V, VAOUT = 4V step CIN VNOISE INOISE
Input Capacitance Input Noise Voltage Density Input Noise Current Density Shutdown Delay Time Enable Delay Time Power-On Time Capacitive-Load Stability COMPARATOR Input Offset Voltage Input Offset Voltage Temperature Coefficient Input-Referred Hysteresis
VOS TCVOS
mV V/C mV 3
_______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.5V to +5.5V, VSS = 0, SHDN = VDD (MAX9001/MAX9004 only), VCM(OP AMP) = 0, VAOUT = VDD / 2, VCM(COMP) = 0 (for MAX9001/MAX9002/MAX9004/MAX9005), COUT = low, IOUT(REF) = 0, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = 5V and TA = +25C.) PARAMETER Input Bias Current Input Offset Current Common-Mode Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio SYMBOL IBIAS IOS VCM CMRR PSRR MAX9001/MAX9002/MAX9004/MAX9005 Guaranteed by CMRR test MAX9001/MAX9002/MAX9004/MAX9005, 0.15V VCM (VDD - 1.1V), VDD = 5.5V VDD = 2.5V to 5.5V VDD - VOH VOL ISOURCE = 10A ISOURCE = 4mA ISINK = 10A ISINK = 4mA VSS 0.15 72 72 5 400 5 400 55 IOUT (DISABLED) tPD+, tPDtR, tF V SHDN (0.3V x VDD), VCOUT = 0 to VDD VOD = 25mV, RL = 10k, CL = 15pF (Note 4) VDD = 5V, RL = 10k, CL = 15pF (Note 5) 0.01 185 10 100 100 100 VREF TCVREF VDD = 2.5V to 5.5V VDD = 5V, IOUT = 0 to 1mA Shorted to VSS Shorted to VDD V SHDN (0.3V x VDD), VREF = 0 to VDD 0.1Hz to 10Hz RL = 100k to VSS, VREF within 1% RL = 100k to VSS, VREF within 1% Sourcing Sinking MAX900_ES_, VDD = 5V, TA = +25C 1.218 1.230 8 20 0.15 0.6 6 10 0.01 20 1 16 16 0 to 100 250 0.8 2.0 1.242 1 100 100 CONDITIONS MIN TYP 8 2 MAX 80 15 VDD 1.1 UNITS nA nA V dB dB
Output Voltage Swing
VOL/VOH
(VCIN+ - VCIN-) 20mV
mV
Output Short-Circuit Current Disabled Mode Output Leakage Propagation Delay Rise/Fall Time Shutdown Delay Time Enable Delay Time Power-On Time VOLTAGE REFERENCE (MAX9000/MAX9001/MAX9003/MAX9004) Output Voltage Output Voltage Temperature Coefficient Line Regulation Load Regulation Output Short-Circuit Current Disabled Mode Output Leakage Output Noise Shutdown Delay Time Enable Delay Time Power-On Time Capacitive Load Stability Note 1: Note 2: Note 3: Note 4: Note 5: 4
mA A ns ns ns ns ns V ppm/C V/V mV/mA mV/mA mA 1 A Vp-p s s s nF
Comparator Input Offset is defined as the center of the input-referred hysteresis zone. Measured at VCM(COMP) = 0 for the MAX9001/MAX9002/MAX9004/MAX9005; or VCM(COMP) = VREF for the MAX9000/MAX9003. Input-referred hysteresis is defined as the difference of the trip points required to change comparator output states. VOD is the overdrive that is beyond the offset and hysteresis-determined trip points. Rise and fall times are measured between 10% and 90% at COUT.
_______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
__________________________________________Typical Operating Characteristics
(VDD = +5V, VSS = 0, VCM (op amp) = 0, SHDN = VDD, COUT = low, RL = TA = +25C, unless otherwise noted.) ,
MAX9000-MAX9005
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX9000 TOC01
SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX9000 TOC02
SHUTDOWN LOGIC THRESHOLD vs. SUPPLY VOLTAGE
MAX9000 TOC03
500 450 SUPPLY CURRENT (A) 400 350 300 250 200 2.5 3.0 3.5 4.0 4.5 5.0 MAX9000/MAX9001/MAX9003/MAX9004
3.5 SHUTDOWN SUPPLY CURRENT (A) 3.0 2.5 2.0 1.5 1.0 0.5 0
2.5 SHUTDOWN LOGIC THRESHOLD (V)
2.0
1.5
MAX9002/MAX9005
1.0
0.5
0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V)
5.5
SUPPLY VOLTAGE (V)
MAX9000/MAX9001/MAX9003/MAX9004 SUPPLY CURRENT vs. TEMPERATURE
MAX9000 TOC04
SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE
MAX9000 TOC05
SHUTDOWN LOGIC THRESHOLD vs. TEMPERATURE
MAX9000 TOC06
500
5.0 SHUTDOWN SUPPLY CURRENT (A) 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 VDD = 2.5V VDD = 5.5V
2.00 SHUTDOWN LOGIC THRESHOLD (V)
SUPPLY CURRENT (A)
450
VDD = 5.5V
1.98
1.96
400 VDD = 2.5V 350
1.94
1.92
300 -40 -20 0 20 40 60 80 100 TEMPERATURE (C)
0 -40 -20 0 20 40 60 80 100 TEMPERATURE (C)
1.90 -40 -20 0 20 40 60 80 100 TEMPERATURE (C)
MAX9002/MAX9005 SUPPLY CURRENT vs. TEMPERATURE
MAX9000 TOC07
OP-AMP OUTPUT VOLTAGE SWING HIGH (VOH) vs. SOURCE CURRENT
MAX9000 TOC08
OP-AMP OUTPUT VOLTAGE SWING LOW (VOL) vs. SINK CURRENT
MAX9000 TOC09
500
450 400 350 VDD - VOH (mV) 300 250 200 150 TA = -40C TA = +25C TA = +85C
600 500 400 VOL (mV) 300 200 TA = -40C 100
SUPPLY CURRENT (A)
450
TA = +85C TA = +25C
400
VDD = 5.5V
350
VDD = 2.5V
100 50
300 -40 -20 0 20 40 60 80 100 TEMPERATURE (C)
0 0 1 2 3 4 5 6 SOURCE CURRENT (mA)
0 0 2 4 6 8 10 12 14 16 18 20 SINK CURRENT (mA)
_______________________________________________________________________________________
5
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
____________________________________Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM (op amp) = 0, SHDN = VDD, COUT = low, RL = TA = +25C, unless otherwise noted.) ,
CHANGE IN OP-AMP OFFSET VOLTAGE (VOS) vs. SUPPLY VOLTAGE
MAX9000 TOC10
CHANGE IN OP-AMP OFFSET VOLTAGE (VOS) vs. TEMPERATURE
MAX9000 TOC11
OP-AMP COMMON-MODE REJECTION RATIO vs. TEMPERATURE
91 90 CMRR (dB) 89 88 87 86
MAX9000 TOC12
30 20 CHANGE IN VOS (V) 10 0 -10 -20 -30 2.5 3.0 3.5 4.0 4.5 5.0
100
92
50 CHANGE IN VOS (V)
0
-50
-100 85 -150 5.5 -40 -20 0 20 40 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE (C) 84 -40 -20 0 20 40 60 80 100 TEMPERATURE (C)
OP-AMP LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
MAX9000 TOC13
OP-AMP LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
MAX9000 TOC14
OP-AMP LARGE-SIGNAL GAIN vs. TEMPERATURE
MAX9000 TOC15
140 130 120 GAIN (dB) 110 RL = 2k 100 90 80 0 100 200 300 400 500 VDD = 5.5V RL TO GND RL = 100k
140 130 120 GAIN (dB) RL = 100k RL = 10k
140 130 RL = 100k 120 GAIN (dB)
RL = 10k
110 100 90 80
RL = 2k
110 100
RL = 10k
VDD = 2.5V RL TO GND 0 100 200 300 400 500 600
90 80 -40
RL = 1k VDD = 5.5V RL TO VDD/2 VOUT SWING = 0.2V TO 5.3V -20 0 20 40 60 80 100
600
OUTPUT VOLTAGE FROM EITHER SUPPLY (mV)
OUTPUT VOLTAGE FROM EITHER SUPPLY (mV)
TEMPERATURE (C)
OP-AMP LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
MAX9000 TOC16
OP-AMP LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE
MAX9000 TOC17
OP-AMP LARGE-SIGNAL GAIN vs. TEMPERATURE
MAX9000 TOC18
140 RL = 100k 130 120 GAIN (dB) 110 100 RL = 10k
140 VDD = 2.7V RL TO VDD 130 GAIN (dB)
140 130 120 GAIN (dB) 110 100 90 VDD = 2.5V RL TO VDD/2 VOUT SWING = 0.2V TO 2.3V -40 -20 0 20 40 60 80 RL = 100k RL = 10k
RL = 100k 120 RL = 10k RL = 2k 110
RL = 2k
RL = 1k
90 80 0 100 200 300 400
VDD = 5.5V RL TO VDD 100 500 600 0 100 200 300 400 500 600 OUTPUT VOLTAGE FROM EITHER SUPPLY (mV) OUTPUT VOLTAGE FROM EITHER SUPPLY (mV)
80 100 TEMPERATURE (C)
6
_______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
_____________________________Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM (op amp) = 0, SHDN = VDD, COUT = low, RL = TA = +25C, unless otherwise noted.) ,
MAX9000/MAX9001/MAX9002 OP-AMP GAIN AND PHASE vs. FREQUENCY (NO LOAD)
60 AV = +1000 NO LOAD GAIN GAIN (dB) 20
MAX9000 TOC 19
MAX9000-MAX9005
MAX9000/MAX9001/MAX9002 OP-AMP GAIN AND PHASE vs. FREQUENCY (WITH CLOAD)
180 144 108 PHASE (DEGREES) 72 36 0 40 60 AV = +1000 CL = 270pF GAIN GAIN (dB) 20
MAX9000/MAX9001/MAX9002 OP-AMP POWER-SUPPLY REJECTION vs. FREQUENCY
144 POWER-SUPPLY REJECTION (dB) 108 PHASE (DEGREES) 72 36 0 -20 AV = +1 NO LOAD
MAX9000 TOC21
MAX9000 TOC20
180
0
40
-40
0 PHASE -20
-36 -72 -108 -144
0 PHASE -20
-36 -72 -108 -144
-60
-80
-40 100 1k 10k 100k 1M FREQUENCY (Hz)
-180 10M
-40 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
-180
-100 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
MAX9003/MAX9004/MAX9005 OP-AMP GAIN AND PHASE vs. FREQUENCY (NO LOAD)
60 AV = +1000 NO LOAD 40 GAIN
MAX9000 TOC22
MAX9003/MAX9004/MAX9005 OP-AMP GAIN AND PHASE vs. FREQUENCY (WITH CLOAD)
180 144 108
PHASE (DEGREES)
40
GAIN
108 PHASE (DEGREES) 72
POWER-SUPPLY REJECTION (dB)
AV = +1000 CL = 270pF
144 -20
AV = +10 NO LOAD
72
GAIN (dB)
20
36 0
GAIN (dB)
20
36 0
-40
0 PHASE -20
-36 -72 -108 -144
0 PHASE -20
-36 -72 -108 -144
-60
-80
-40 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
-180
-40 100 1k 10k 100k 1M FREQUENCY (Hz)
-180 10M
-100 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
MAX9000/MAX9001/MAX9002 OP-AMP PERCENT OVERSHOOT vs. LOAD CAPACITANCE
MAX9000 TOC25
MAX9003/MAX9004/MAX9005 OP-AMP PERCENT OVERSHOOT vs. LOAD CAPACITANCE
MAX9000 TOC26
OP-AMP VOLTAGE NOISE DENSITY vs. FREQUENCY
MAX9000 TOC27
50
AV = +1 RL TO VDD/2
50
RL = 100k
AV = +10 RL TO VDD/2 RL = 100k
1000
RL = 10k
VOLTAGE NOISE (nV/Hz)
40 OVERSHOOT (%)
40 OVERSHOOT (%)
300
30 RL = 1k RL = 10k
30
100
20
20 RL = 1k
10
10
30
0 0 100 200 300 400 500 600 700 800 900 1000 CLOAD (pF)
0 0 100 200 300 400 500 600 700 800 900 1000 CLOAD (pF)
10 1 10 100 1k 10k 100k FREQUENCY (Hz)
_______________________________________________________________________________________
7
MAX9000 TOC24
60
MAX9000 TOC23
MAX9003/MAX9004/MAX9005 OP-AMP POWER-SUPPLY REJECTION vs. FREQUENCY
180 0
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
_____________________________Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM (op amp) = 0, SHDN = VDD, COUT = low, RL = TA = +25C, unless otherwise noted.) ,
MAX9000/MAX9001/MAX9002 OP-AMP TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY
MAX9000 TOC28
MAX9000/MAX9001/MAX9002 OP-AMP TOTAL HARMONIC DISTORTION PLUS NOISE vs. VAOUT
MAX9000 TOC29
MAX9000/MAX9001/MAX9002 OP-AMP OUTPUT IMPEDANCE vs. FREQUENCY
AV = +1 NO LOAD OUTPUT IMPEDANCE () 100
MAX9000 TOC30
1
AV = +1 VIN = 2Vp-p 500 kHz LOWPASS FILTER RL TO VDD/2 RL = 1k RL = 10k
0.25 AV = +1 VIN = 10kHz SINE WAVE 500kHz LOWPASS FILTER RL TO VDD/2
1k
0.20 THD + NOISE (%)
THD + NOISE (%)
0.1
RL = 10k
0.15
10
0.10
0.01 RL = 100k
RL = 1k RL = 100k
1
0.05
0.1
0.001 10 100 1k FREQUENCY (Hz) 10k 100k
0 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 VAOUT SWING (Vp-p)
0.01 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
MAX9003/MAX9004/MAX9005 OP-AMP TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY
MAX9000 TOC31
MAX9003/MAX9004/MAX9005 OP-AMP TOTAL HARMONIC DISTORTION PLUS NOISE vs. VAOUT
AV = +10 VIN = 10kHz SINE WAVE 500kHz LOWPASS FILTER RL TO VDD/2 VIN 4k 36k RL = 1k 0.05 RL = 10k RL = 100k 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 VAOUT SWING (Vp-p) VOUT RL
MAX9000 TOC32
MAX9003/MAX9004/MAX9005 OP-AMP OUTPUT IMPEDANCE vs. FREQUENCY
AV = +10 NO LOAD
MAX9000 TOC33
1 AV = +10 VIN = 200mVp-p 500kHz LOWPASS FILTER RL TO VDD/2 THD + NOISE (%) RL = 1k
0.25
10k
OUTPUT IMPEDANCE ()
0.20 THD + NOISE (%)
1k
RL = 10k 0.1
0.15
100
0.10
10
VIN 4k 36k 0.01 10 100
VOUT RL
RL = 100k
1
0 1k FREQUENCY (Hz) 10k 100k
0.1 100 1k 10k 100k 1M 10M FREQUENCY (Hz)
CHANGE IN COMPARATOR OFFSET VOLTAGE (VOS) vs. SUPPLY VOLTAGE
MAX9000 TOC34
CHANGE IN COMPARATOR OFFSET VOLTAGE (VOS) vs. TEMPERATURE
150 CHANGE IN VOS (V) 100 CMRR (dB) 50 0 -50 -100 -150 -200 85 -40 -20 0 20 40 60 80 100 -40
MAX9000 TOC35
COMPARATOR COMMON-MODE REJECTION RATIO (CMRR) vs. TEMPERATURE
MAX9000 TOC36
200 150 CHANGE IN VOS (V) 100 50 0 -50 -100 -150 -200 2.5 3.0 3.5 4.0 4.5 5.0
200
95
93
91
89
87
5.5
-20
0
20
40
60
80
100
SUPPLY VOLTAGE (V)
TEMPERATURE (C)
TEMPERATURE (C)
8
_______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
_____________________________Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM (op amp) = 0, SHDN = VDD, COUT = low, RL = TA = +25C, unless otherwise noted.) ,
COMPARATOR HYSTERESIS vs. TEMPERATURE
MAX9000 TOC37
MAX9000-MAX9005
COMPARATOR OUTPUT VOLTAGE SWING HIGH (VOH) vs. SOURCE CURRENT
MAX9000 TOC38
COMPARATOR OUTPUT VOLTAGE SWING LOW (VOL) vs. SINK CURRENT
MAX9000 TOC39
3.5
600 500 VDD - VOH (mV) 400 300 200 TA = +85C TA = +25C
600 500 TA = +85C 400 VOL (mV) 300 200 TA = +25C
3.2 HYSTERESIS (mV)
2.9
2.6
TA = -40C
2.3
TA = -40C 100 0 -40 -20 0 20 40 60 80 100 0 1 2 3 4 5 6 7 8 9 10 TEMPERATURE (C) SOURCE CURRENT (mA) 100 0 0 1 2 3 4 5 6 7 8 9 10 SINK CURRENT (mA)
2.0
COMPARATOR PROPAGATION DELAY vs. INPUT OVERDRIVE
MAX9000 TOC40
POSITIVE COMPARATOR PROPAGATION DELAY (tPD+) vs. LOAD CAPACITANCE
MAX9000 TOC41
NEGATIVE COMPARATOR PROPAGATION DELAY (tPD-) vs. LOAD CAPACITANCE
700 600 tPD- (ns)
MAX9000 TOC42
300 275 PROPAGATION DELAY (ns) 250
800 700 OVERDRIVE = 5mV 600 tPD+ (ns) 500 400 300 200 100 OVERDRIVE = 25mV
800 OVERDRIVE = 5mV
tPD-
500 400 300 200 100
OVERDRIVE = 25mV
225 200 175 150 0 10 20 30 40 50 60 70 80 90 100 INPUT OVERDRIVE (mV)
OVERDRIVE = 100mV
tPD+
OVERDRIVE = 100mV
0
2000
4000
6000
8000
10,000
0
2000
4000
6000
8000
10,000
CLOAD (pF)
CLOAD (pF)
COMPARATOR PROPAGATION DELAY vs. TEMPERATURE
MAX9000 TOC43
VREF POWER-SUPPLY REJECTION vs. FREQUENCY
MAX9000 TOC44
VREF OUTPUT VOLTAGE CHANGE vs. TEMPERATURE
VREF OUTPUT VOLTAGE CHANGE (mV)
MAX9000TOC45
200 OVERDRIVE VOLTAGE = 50mV tPDPROPAGATION DELAY (ns) 175 tPD+
0 POWER-SUPPLY REJECTION (dB)
1.0 0.5 0 -0.5 -1.0 -1.5 -2.0
-20
-40
150
-60
125
-80
100 -40 -20 0 20 40 60 80 100 TEMPERATURE (C)
-100 1 10 100 1k 10k 100k 1M FREQUENCY (Hz)
-40
-20
0
20
40
60
80
100
TEMPERATURE (C)
_______________________________________________________________________________________
9
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
_____________________________Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM (op amp) = 0, SHDN = VDD, COUT = low, RL = TA = +25C, unless otherwise noted.) ,
VREF OUTPUT VOLTAGE CHANGE vs. LOAD CURRENT
MAX9000 TOC46
VREF OUTPUT VOLTAGE CHANGE vs. SUPPLY VOLTAGE
MAX9000 TOC47
VREF LOAD-TRANSIENT RESPONSE
+1mA IOUT 2mA/div -1mA
MAX9000-TOC48
4 VREF OUTPUT VOLTAGE CHANGE (mV) 3 2 1 SOURCING 0 -1 -2 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 SINKING
100 VREF OUTPUT VOLTAGE CHANGE (V)
50
0
VREF 200mV/div
-50
-100 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 50s/div LOAD CURRENT (mA) SUPPLY VOLTAGE (V)
VREF LINE-TRANSIENT RESPONSE
MAX9000-TOC49
VREF 0.1Hz to 10Hz VOLTAGE NOISE
MAX9000-TOC50
COMPARATOR PROPAGATION DELAY
MAX9000-TOC51
VDD 500mV/div
5.0V 4.5V
VIN+ 50mV/div
VIN- = GND NO LOAD
+50mW
-50mW 5V/div VREF 100mV/div VOUT 2V/div
tPD+
tPD-
5s/div
1sec/div
100ns/div
MAX9000/MAX9001/MAX9002 OP-AMP SMALL-SIGNAL TRANSIENT RESPONSE
MAX9000-TOC52
MAX9000/MAX9001/MAX9002 OP-AMP SMALL-SIGNAL TRANSIENT RESPONSE WITH CLOAD
MAX9000-TOC53
MAX9003/MAX9004/MAX9005 OP-AMP SMALL-SIGNAL TRANSIENT RESPONSE
VIN 10mV/div AV = +10 NO LOAD
MAX9000-TOC54
AV = +1 NO LOAD VIN 50mV/div
AV = +1 CL = 270pF VIN 50mV/div
VOUT 50mV/div
VOUT 50mV/div
VOUT 50mV/div
500ns/div
1s/div
500ns/div
10
______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
_____________________________Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0, VCM (op amp) = 0, SHDN = VDD, COUT = low, RL = TA = +25C, unless otherwise noted.) ,
MAX9000-MAX9005
MAX9003/MAX9004/MAX9005 OP-AMP SMALL-SIGNAL TRANSIENT RESPONSE WITH CLOAD
AV = +1 CL = 270pF
MAX9000-TOC55
MAX9000/MAX9001/MAX9002 OP-AMP LARGE-SIGNAL TRANSIENT RESPONSE
MAX9000-TOC56
MAX9003/MAX9004/MAX9005 OP-AMP LARGE-SIGNAL TRANSIENT RESPONSE
VIN 0.5V/div 5V VOUT 1V/div AV = +10 NO LOAD
MAX9000-TOC57
VIN 10mV/div
VIN 5V/div 4V
AV = +1 NO LOAD
VOUT 50mV/div
VOUT 1V/div
0V 0V 1s/div 2s/div 500ns/div
Pin Description
PIN MAX9000/ MAX9003 -- 1 2 3 4 5 -- 6 7 8 -- MAX9002/ MAX9005 -- 1 2 3 4 -- 5 6 7 8 -- MAX9001/MAX9004 10 MAX 1 2 3 4 5 6 7 8 9 10 -- 14 SO 2 3 4 5 6 9 10 11 12 13 1, 7, 8, 14 SHDN AOUT AINAIN+ VSS REF CINCIN+ COUT VDD N.C. Shutdown Logic Input Op-Amp Output Inverting Op-Amp Input Noninverting Op-Amp Input Negative Supply or Ground Internal Reference Output Inverting Comparator Input Noninverting Comparator Input Comparator Output Positive Supply No Connection. Not internally connected. NAME FUNCTION
______________________________________________________________________________________
11
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
_______________Detailed Description
The MAX9001-MAX9005 are combinations of a highspeed operational amplifier, a 185ns comparator, and a 1%-accurate, 8ppm/C, 1.230V reference. The devices are offered in space-saving 8-pin and 10-pin MAX packages. The comparator's inverting input is internally connected to the reference output in the MAX9000/MAX9003. The MAX9002/MAX9005 do not have an internal reference, but the inverting input of the comparator is available externally. The MAX9001/MAX9004 include both the inverting input and the reference output. The MAX9000/ MAX9001/MAX9003/MAX9004 typically consume only 410A of quiescent current, while the MAX9002/ MAX9004 typically consume 340A. These low-power, Rail-to-Rail devices provide excellent AC and DC performance and are ideally suited to operate from a single supply. The MAX9001/MAX9004 feature a shutdown mode that sets the outputs in a high-impedance state and reduces the supply current to 2A, making these devices ideal for portable and battery-powered systems.
1
AOUT
OP AMP
MAX9000 MAX9003
VDD 8
2
AIN-
COMP
COUT 7
3
AIN+ REF
CIN+ 6
4
VSS
REF 5
1
AOUT
OP AMP
MAX9002 MAX9005
VDD 8
Op Amp
COMP COUT 7
2
AIN-
3
AIN+
CIN+ 6
4
VSS
CIN- 5
2
SHDN NORMAL/SHUTDOWN CONTROL 4M
VDD 13
3
AOUT
OP AMP
COMP
VDD 12
4 5 6
AINAIN+ VSS
CIN+ 11 CIN- 10
MAX9001 MAX9004
REF
REF 9
The op amps in the MAX9000/MAX9001/MAX9002 are unity-gain stable with a gain-bandwidth product of 1.25MHz and a slew rate of 0.85V/s. The amplifiers in the MAX9003/MAX9004/MAX9005 are stable at closedloop gains greater than or equal to 10V/V, with a gainbandwidth product of 8MHz and a slew rate of 6.0V/s. The common-mode input voltage range extends from 150mV below the negative rail to within 1.2V of the positive rail. The amplifier output does not undergo phase reversal when the common-mode input range is exceeded, and the input impedance is relatively constant for input voltages within both supply rails. The MOS differential inputs of the amplifiers feature extremely high input impedance and ultra-low input bias currents. The CMOS output stage achieves true rail-to-rail operation; the outputs swing to within a few millivolts of the supply rails, thus extending the dynamic range. A proprietary design achieves high open-loop gain, enabling these devices to operate at low quiescent currents yet maintain excellent DC and AC characteristics under various load conditions. These devices have been designed to maintain low offset voltage over the entire operating-temperature, commonmode, and supply-voltage ranges.
Figure 1. MAX9000-MAX90005 Functional Diagrams
12
______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
Comparator
The common-mode input range extends from 150mV below the negative rail to within 1.1V of the positive rail. The bipolar differential inputs of the comparator feature high input impedance and low input bias currents. The comparators are designed to maintain low offset voltage over the entire operating-temperature, commonmode, and supply-voltage ranges. In the MAX9000/ MAX9003, the comparator's inverting input is internally connected to the reference output. The CMOS output stage achieves true rail-to-rail operation; the outputs swing to within a few millivolts of the supply rails. The comparator's propagation delay is 185ns and is a function of the overdrive (see Typical Operating Characteristics). TTL/CMOS compatibility is maintained even with a 4mA output load. A proprietary design of the output stage substantially reduces the cross-conduction current during output transitions, thereby minimizing power-supply glitches typical of most comparators. In addition, the comparator's 2mV of built-in hysteresis provides noise immunity and prevents unstable outputs even with slow-moving input signals. amplifier's output, add a 1F to 10F power-supply bypass capacitor. The device has a high degree of isolation between the various blocks. To maintain isolation, careful layout is required. Take special precautions to avoid crossing signal traces, especially from the outputs to the inputs. For sensitive applications, shielding might be required. In addition, stray capacitance may affect the stability and frequency response of the amplifier. Decrease stray capacitance by minimizing lead lengths in the board layout, as well as placing external components as close to the device as possible.
MAX9000-MAX9005
Op-Amp Frequency Stability
Driving large capacitive loads can cause instability in most low-power, rail-to-rail output amplifiers. These amplifiers are stable with capacitive loads up to 250pF in their minimum gain configuration. Stability with higher capacitive loads can be improved by adding an isolation resistor in series with the op-amp output, as shown in Figure 2. This resistor improves the circuit's phase margin by isolating the load capacitor from the amplifier's output. Figures 3 and 4 show the response of the amplifier with and without an isolation resistor, respectively. The total capacitance at the op amp's inputs (input capacitance + stray capacitance) along with large-value feedback resistors can cause additional poles within the amplifier's bandwidth, thus degrading the phase margin. To compensate for this effect, place a 2pF to 10pF capacitor across the feedback resistor, as shown in Figure 5.
Voltage Reference
The 1%-accurate, precision 1.230V internal bandgap reference in the MAX9000/MAX9001/MAX9003/ MAX9004 achieves an 8ppm/C temperature coefficient (tempco). The reference can sink or source 1mA of load current with excellent load regulation. The output typically changes only 60V for a 3V change in input voltage (line regulation). The reference is stable for capacitive loads up to 100nF.
Applications Information
The MAX9000-MAX9005 offer excellent performance and low power consumption, and are available in space-saving MAX packages. The following section provides some practical application guidelines.
RS
Bypassing and Layout
The MAX9000-MAX9005 operate from a +2.5V to +5.5V single supply or from 1.25V to 2.75V dual supplies. (In the MAX9000/MAX9001/MAX9003/MAX9004, the reference voltage is referred to as VSS.). For singlesupply operation, bypass the power supply with a 0.1F capacitor. For dual supplies, bypass each supply to ground. Bypass with capacitors as close as possible to the device to minimize lead inductance and noise. Use a low-inductance ground plane if possible. A printed circuit board with a ground plane is recommended. Avoid using wire-wrap boards, breadboards, or IC sockets. For heavy loads at the comparator's and/or
MAX9000 MAX9001 MAX9002
CLOAD
RS CLOAD R R
MAX9003 MAX9004 MAX9005 Figure 2. Isolation Resistors to Drive Capacitive Loads
13
______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
MAX9000-FIG03 MAX9000-FIG04
VIN 50mV/ div
VIN 50mV/ div
VOUT 50mV/ div
VOUT 50mV/ div
VDD = +1 CL = 510pF
2s/div
2s/div
Figure 3. MAX9000/MAX9001/MAX9002 Op-Amp Small-Signal Transient Response with Capacitive Load (CL = 510pF) and Isolation Resistor (RISO = 91)
Figure 4. MAX9000/MAX9001/MAX9002 Op-Amp Small-Signal Transient Response with Capacitive Load (CL = 510pF) and No Isolation Resistor
AIN+ AOUT R2 VIN R1 COUT
R2 R1 2pF TO 10pF REF
Figure 5. Compensation for Input Capacitance
Figure 6. External Hysteresis
Reference Bypassing
While the internal reference is stable with capacitive loads up to 100nF, it does not require an output capacitor for stability. However, in applications where the load or the supply could experience large step changes, an output capacitor reduces the amount of overshoot and improves the circuit's transient response.
comparator. The outputs do not undergo phase reversal when the input common-mode range is exceeded, and the input impedance is relatively constant for input voltages within both supply rails.
Comparator Hysteresis
Built-in 2mV hysteresis improves the comparator's noise immunity. It prevents unstable outputs with slowmoving or noisy input signals. If additional hysteresis is required, add positive feedback as shown in Figure 6. This configuration increases the hysteresis band to desired levels, but also increases power consumption and slows down the output response.
Comparator Input Stage
The comparator's input bias current is typically 8nA. To reduce the offset error caused by the bias current flowing through the external source impedance, match the effective impedance seen by each input. High source impedance together with the comparator's input capacitance can increase the propagation delay through the
14
______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
To add hysteresis, use the following procedure: Step 1: The device's input bias current can be as high as 80nA. To minimize error due to the input bias, choose a value for R2 of 100k (VREF / R2), which allows a current of 12.33A at the upper trip point. Step 2: Choose the width of the hysteresis band. In this example, choose 20mV for the added external hysteresis (V EHYST = 20mV). Total hysteresis = V EHYST + VIHYST = 24mV. R1 = R2 (VEHYST - 2VIHYST) / (VDD + 2VIHYST) where IHYST is the device's internal hysteresis. Step 3: Determine R1. If VDD = 5V, then R1 = 319. Step 4: Check the hysteresis trip points. The following equation represents the upper trip point (VIN(H)): VIN(H) = [(R1 + R2) / R2] (VREF + VIHYST) = 1.238V The lower trip point is 24mV lower than upper trip point. VIN(L) = 1.238V - 0.024V = 1.214V. tive supply without an increase in the SHDN input current, allowing them to be driven from independent logic circuits powered from a different supply voltage. However, the logic threshold voltage requirements must be met for proper operation. If SHDN is left unconnected, the device defaults to the enabled mode through an internal 4M pull-up to VDD. If SHDN is to be left unconnected, take proper care to ensure that no signals are coupled to this pin, as this may cause false triggering. In shutdown mode, all outputs are set to a high-impedance state and the supply current reduces to 2A. Enable times for the op amp, comparator, and reference are 2s, 100ns, and 16s, respectively. Shutdown delay times for the op amp, comparator, and reference are 200ns, 100ns, and 1s, respectively (Figure 7).
MAX9000-MAX9005
________________Application Circuits
Radio Receiver for Alarms and Detectors
Figure 8's circuit is useful as a front end for RF alarms. An unshielded inductor is used with capacitors C1A, C1B, and C1C in a resonant circuit to provide frequency selectivity. The op amp from a MAX9003 amplifies the signal received. The comparator improves noise immunity, provides a signal-strength threshold, and translates the received signal into a pulse train. The tuned LC circuit in Figure 8 is set for 300kHz. The layout and routing of components for the amplifier should be tight to minimize 60Hz interference and crosstalk from the comparator. Metal shielding is recommended to prevent RFI from the comparator or digital circuitry from exciting the receiving antenna. The transmitting
VCC = 5V
Comparator Propagation Delay
The comparator's propagation delay is a function of the input overdrive voltage. Overdrive voltage is measured from beyond the edge of the offset and hysteresisdetermined trip points (see Typical Operating Characteristics for a graph of Propagation Delay vs. Input Overdrive). High source impedance coupled with the comparator's input capacitance increases the propagation delay. Large capacitive loads also increase the propagation delay. Shutdown is active-low enabled. The SHDN input for the MAX9001/MAX9004 can be taken above the posiMAX9000-FIG07
S Shutdown (SHDN )
SHDN 5V/div AOUT 2V/div COUT 5V/div
ANTENNA
0.1F C1A 390pF C1B 0.01nF C1C 50-100pF
MAX9003
AMP 9.1k
0.1F 20k 10M
L1 33H
10k 5.1M 1.230V REF
COMP
VREF 1V/div 1 L1 x C1 = (2 fC) 2
5s/div AV = +1V/V, CAIN+ = 2.5V, CCIN+ = 2.5V
LAYOUT-SENSITIVE AREA, METAL RFI SHIELDING ADVISED
Figure 7. Enable/Disable Response of Op Amp, Comparator, and Reference to SHDN
Figure 8. Radio Receiver Application
______________________________________________________________________________________
15
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
antenna can be long parallel wires spaced about 7.2cm apart, with equal but opposite currents. Radio waves from this antenna are detectable when the receiver is brought within close proximity, but cancel out at greater distances.
VCC = 5V 100kHz, 5Vp-p NEC SE307-C 51 C2 15pF, 5% NEC PH302B 4.99k R1A 49.9k 1% R1B 4.99k 1% C1 150pF, 5% R2 100k, 1% AMP 0.1F
Infrared Receiver Front End for Remote Controls and Data Links
The circuit in Figure 9 uses the MAX9003 as a PIN photodiode preamplifier and discriminator for an infrared receiver. The op amp is configured as a Delyiannisnoise and eliminates low-frequency interference from sunlight, fluorescent lights, etc. This circuit is applicable for TV remote controls and low-frequency data links up to 200kbps. Carrier frequencies are limited to around 100kHz, as in the example circuit. Component layout and routing for the amplifier should be tight to reduce stray capacitance, 60Hz interference, and RFI from the comparator. Crosstalk from comparator edges distorts the amplifier signal. To minimize this effect, add a lowpass RC filter to the connection from the reference to the op amp's noninverting input.
100k
1.230V
COMP
MAX9003
LAYOUT-SENSITIVE AREA 1 2 fC
0.1F REF
R1 x C1 = R2 x C2 =
Signal Conditioning
For incoming signals that require filtering, the internal amplifier provides an opportunity to create an active filter. This may be required for relatively high-speed signals that require adequate filtering of high-speed carrier frequencies, harmonics, and external noise. In addition, the amplifier can be used to amplify the signal prior to digitizing it through the comparator to improve the comparator's overall output response and improve its noise immunity.
Figure 9. Infrared Receiver Application
16
______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
Pin Configurations
MAX9000-MAX9005
TOP VIEW
AOUT 1 AIN- 2 AIN+ 3
8 7
VDD COUT CIN+ REF (CIN-)
SHDN 1 AOUT AIN2 3 4 5
10 VDD 9 COUT CIN+ CINREF
N.C. 1 SHDN AOUT 2 3
14 N.C. 13 VDD 12 COUT
VSS 4
MAX9000 MAX9002 MAX9003 MAX9005
SO/MAX
6 5
MAX9001 MAX9004
8 7 6
AIN+ VSS
AIN- 4 AIN+ 5 VSS 6 N.C. 7
MAX9001 MAX9004
11 CIN+ 10 CIN9 8 REF N.C.
MAX
SO
( ) ARE FOR THE MAX9002/MAX9005.
Typical Operating Circuit
0.1F INPUT OP AMP AINAOUT 1M R2 R1 CIN+ REF REF COMP COUT VDD AIN+
MAX9000 MAX9003
1.230V
VSS
______________________________________________________________________________________
17
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
Ordering Information (continued)
PART MAX9002EUA MAX9002ESA MAX9003EUA MAX9003ESA MAX9004EUB MAX9004ESD MAX9005EUA MAX9005ESA TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C PIN-PACKAGE 8 MAX 8 SO 8 MAX 8 SO 10 MAX 14 SO 8 MAX 8 SO
Chip Information
TRANSISTOR COUNT: 283
Package Information
8LUMAXD.EPS
18
______________________________________________________________________________________
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs
Package Information (continued)
10LUMAXB.EPS
MAX9000-MAX9005
______________________________________________________________________________________
19
Low-Power, High-Speed, Single-Supply Op Amp + Comparator + Reference ICs MAX9000-MAX9005
Package Information (continued)
SOICN.EPS
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 1998 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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