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19-1569; Rev 6; 3/09
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
General Description
The MAX9039-MAX9043 and MAX9050-MAX9053 feature combinations of low-power comparators and precision voltage references. Their operating voltage range makes them ideal for both 3V and 5V systems. The MAX9039/MAX9040/MAX9041/MAX9050/MAX9051 have a single comparator and reference consuming only 40A of supply current. The MAX9042/MAX9043/ MAX9052/MAX9053 have dual comparators and one reference, and consume only 55A of supply current. Low-voltage operation and low supply current make these devices ideal for battery-operated systems. The comparators feature rail-to-rail inputs and outputs, with a common-mode input voltage range that extends 250mV beyond the supply rails. Input bias current is typically 1.0pA, and input offset voltage is typically 0.5mV. Internal hysteresis ensures clean output switching, even with slow-moving input signals. The output stage features a unique design that limits supply current surges while switching, virtually eliminating supply glitches typical of many other comparators. This design also minimizes overall power consumption under dynamic conditions. The comparator outputs have railto-rail, push-pull output stages that sink and source up to 8mA. The propagation delay is 400ns, even with the low-operating supply current. The reference output voltage is set to 1.23V in the MAX9039, to 2.048V in the MAX9040-MAX9043, and to 2.500V in the MAX9050-MAX9053. The MAX9040- MAX9043 and the MAX9050-MAX9053 are offered in two grades: an A grade with 0.4% initial accuracy and 6ppm/C tempco, and a B grade with 1% initial accuracy and 100ppm/C tempco. The voltage references feature a proprietary curvature-correction circuit and laser-trimmed thin-film resistors. These series-mode references can sink or source up to 500A of load current.
Features
Comparator + Precision Reference in UCSP/SOT23 2.5V to 5.5V Single-Supply Operation (MAX9039-MAX9043) Low Supply Current (MAX9039/MAX9040/ MAX9041/MAX9050/MAX9051) 40A Quiescent 50A with 100kHz Switching 400ns Propagation Delay Rail-to-Rail Inputs Rail-to-Rail Output Stage Sinks and Sources 8mA Internal 3mV Hysteresis Voltage Reference Offers 0.4% (max) Initial Accuracy (A grade) 6ppm/C (typ) Temperature Coefficient (A grade) Stable for 0 to 4.7nF Capacitive Loads
MAX9039-MAX9043/MAX9050-MAX9053
Ordering Information
PART TEMP RANGE PINPACKAGE 6 UCSP 5 SOT23 5 SOT23 6 SOT23 6 SOT23 8 SO 8 SO TOP MARK AAZ ADNW ADNX AAHF AAHH -- --
MAX9039BEBT-T* -40C to +85C MAX9040AEUK-T -40C to +85C MAX9040BEUK-T -40C to +85C MAX9041AEUT-T MAX9041BEUT-T MAX9041AESA MAX9041BESA -40C to +85C -40C to +85C -40C to +85C -40C to +85C
*UCSP reliability is integrally linked to the user's assembly methods, circuit board material, and environment. Refer to the UCSP Reliability section of this data sheet for more information. Ordering Information continued at end of data sheet. Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW (BUMPS ON BOTTOM)
IN+ B1 A1 VEE OUT 1
Applications
Precision Battery Management Window Comparators IR Receivers
Typical Operating Circuit and Functional Diagrams appear at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc.
TOP VIEW
5 VCC
Level Translators Digital Line Receivers
MAX9039
INB2 A2 OUT
VEE 2
MAX9040 MAX9050
4 REF
REF
B3
A3
VCC
IN+ 3
UCSP
SOT23
Pin Configurations continued at end of data sheet. 1
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to VEE) ....................................-0.3V to +6V All Other Pins ...................................(VEE - 0.3V) to (VCC + 0.3V) Current into Input Pins ......................................................20mA Output Short-Circuit Duration (OUT_, REF) ...............Indefinite Short Circuit to Either Supply Continuous Power Dissipation (TA = +70C) 5-Pin SOT23 (derate 7.10mW/C above +70C)..........571mW 6-Bump UCSP (derate 3.9mW/C above +70C) ........308mW 6-Pin SOT23 (derate 8.70mW/C above +70C)..........696mW 8-Pin SO (derate 5.88mW/C above +70C)................471mW 8-Pin MAX(R) (derate 4.1mW/C above +70C) ...........330mW 10-Pin MAX (derate 5.6mW/C above +70C) ...........444mW Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C Bump Reflow Temperature (Note 1) ................................+235C
Note 1: This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recommended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and Convection Packaging Reflow. Preheating is required. Hand or wave soldering is not allowed.
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--A Grade (0.4% Initial Accuracy)
(VCC = +5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER Supply Voltage Range (Note 3) SYMBOL VCC CONDITIONS MAX9040-MAX9043 MAX9050-MAX9053 MAX9040/MAX9041/ MAX9050/MAX9051 Supply Current ICC MAX9042/MAX9043/ MAX9052/MAX9053 Over entire common-mode range VCC = 2.7V VCC = 5V VCC = 2.7V VCC = 5V TA = +25C TA = -40C to +85C 3.0 Specified common-mode range Specified common-mode range TA = +25C TA = -40C to +85C Common-Mode Rejection Ratio (Note 5) Power-Supply Rejection Ratio Input Capacitance (Note 5) Output Short-Circuit Current Output Voltage Low CMRR PSRR CIN ISC VOL VOUT = VEE or VCC VCC = 5V, ISINK = 8mA VCC = 2.7V, ISINK = 3.5mA VCC = 5V VCC = 2.7V Specified common-mode range MAX9040-MAX9043, 2.5V VCC 5.5V MAX9050-MAX9053, 2.5V VCC 5.5V VEE 0.25 VEE 52 55 55 80 80 80 2.5 95 35 0.2 0.15 0.55 0.4 0.001 0.5 VCC + 0.25 VCC dB dB pF mA V 10.0 MIN 2.5 2.7 47 52 55 60 0.5 TYP MAX 5.5 5.5 67 72 80 85 5.0 mV 7.0 mV nA pA V A UNITS V
COMPARATORS Input Offset Voltage (Note 4) Input Hysteresis Input Bias Current (Notes 5, 6, 7) Input Offset Current (Note 5) Common-Mode Voltage Range (Notes 5, 8) VOS VHYST IB IOS CMVR
MAX is a registered trademark of Maxim Integrated Products, Inc. 2 _______________________________________________________________________________________
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
ELECTRICAL CHARACTERISTICS--A Grade (0.4% Initial Accuracy) (continued)
(VCC = +5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER Output Voltage High SYMBOL VOH CONDITIONS VCC = 5V, ISOURCE = 8mA VCC = 2.7V, ISOURCE = 3.5mA CL = 15pF Output Rise/Fall Times Output Propagation Delay (Note 9) Power-Up Time VOLTAGE REFERENCE Output Voltage Output Voltage Temperature Coefficient (Note 10) Line Regulation Load Regulation Output Short-Circuit Current Thermal Hysteresis (Note 11) Long-Term Stability Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range (Note 7) EOUT VREF/ VCC tR(VREF) CL(VREF) VREF TCVREF VREF/ VCC VREF/ IREF ISC THYST 1000h at TA = +25C f = 0.1Hz to 10Hz f = 10Hz to 10kHz VCC = 5V 100mV, f = 120Hz To VREF = 1% of final value 0 TA = +25C MAX/SO SOT23 2.5V VCC 5.5V, MAX9040-MAX9043 2.7V VCC 5.5V, MAX9050-MAX9053 Sourcing. 0A IREF 500A Sinking, -500A IREF 0A VREF = VEE or VCC MAX9040-MAX9043 MAX9050-MAX9053 2.040 2.490 2.048 2.500 6 6 +50 +50 2 3.5 4 130 50 40 105 84 200 4.7 2.056 2.510 30 50 +200 +200 4 6 V ppm/C V/V V/A mA ppm ppm VP-P VRMS dB s nF tR/tF tPD+/ tPDtPU CL = 50pF CL = 200pF CL = 15pF, VCC = 2.7V 50mV overdrive 100mV overdrive MIN 4.45 2.3 TYP 4.85 2.55 40 50 80 450 400 20 ns s ns MAX UNITS V
MAX9039-MAX9043/MAX9050-MAX9053
Time to VOUT valid logic state
ELECTRICAL CHARACTERISTICS--B Grade (1% Initial Accuracy)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER Supply Voltage Range (Note 3) SYMBOL VCC CONDITIONS MAX9039-MAX9043 MAX9050-MAX5053 MAX9039/MAX9040/ MAX9041/MAX9050/ MAX9051 MAX9042/MAX9043/ MAX9052/MAX5053 VCC = 2.7V VCC = 5.0V VCC = 2.7V VCC = 5.0V MIN 2.5 2.7 40 45 55 60 130 100 A TYP MAX 5.5 5.5 UNITS V
Supply Current
ICC
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
ELECTRICAL CHARACTERISTICS--B Grade (1% Initial Accuracy) (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER COMPARATOR Input Offset Voltage (Note 4) Input Hysteresis Input Bias Current (Notes 5, 6, 7) Input Offset Current (Note 5) Common-Mode Voltage Range (Notes 5, 8) Common-Mode Rejection Ratio (Note 5) Power-Supply Rejection Ratio Input Capacitance (Note 5) Output Short-Circuit Current Output Voltage Low Output Voltage High VOS VHYST IB IOS CMVR CMRR PSRR CIN ISC VOL VOH VOUT = VEE or VCC VCC = 5V, ISINK = 8mA VCC = 2.7V, ISINK = 3.5mA VCC = 5V, ISOURCE = 8mA VCC = 2.7V, ISOURCE = 3.5mA CL = 15pF Output Rise/Fall Times Output Propagation Delay (Note 9) Power-Up Time VOLTAGE REFERENCE MAX9039 Output Voltage Output Voltage Temperature Coefficient (Note 10) Line Regulation Load Regulation Output Short-Circuit Current Thermal Hysteresis (Note 11) Long-Term Stability Noise Voltage EOUT VREF TA = +25C MAX9040-MAX9043 MAX9050-MAX9053 TCVREF VREF/ VCC VREF/ IREF ISC THYST 1000h at TA = +25C f = 0.1Hz to 10Hz f = 10Hz to 10kHz 2.5V VCC 5.5V MAX9039-MAX9043 MAX9050-MAX9053 1.218 2.028 2.475 1.230 2.048 2.500 20 +50 +50 2 3.5 4 130 100 40 105 1.242 2.068 2.525 100 +200 +200 4 6 ppm/C V/V V/A mA ppm ppm VP-P VRMS V tR/tF CL = 50pF CL = 200pF tPD+/tPDtPU CL = 15pF, VCC = 2.7V 50mV overdrive 100mV overdrive 4.45 VCC = 5V VCC = 2.7V Specified common-mode range MAX9039-MAX9043, 2.5V VCC 5.5V MAX9050-MAX9053, 2.7V VCC 5.5V Specified common-mode range Specified common-mode range VEE 52 55 55 80 80 80 2.5 95 35 0.2 0.15 4.85 2.55 40 50 80 450 400 20 ns s ns 0.55 Over entire common-mode range 1 3.0 0.001 0.5 VCC 25.0 9.0 mV mV nA pA V dB dB pF mA V V SYMBOL CONDITIONS MIN TYP MAX UNITS
Time to VOUT valid logic state
Sourcing: 0A IREF 500A Sinking: -500A IREF 0A VREF = VEE or VCC
4
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
ELECTRICAL CHARACTERISTICS--B Grade (1% Initial Accuracy) (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 2)
PARAMETER Ripple Rejection Turn-On Settling Time Capacitive Load Stability Range (Note 7) SYMBOL VREF/ VCC tR(VREF) CL(VREF) CONDITIONS VCC = 5V 100mV, f = 120Hz To VREF = 1% of final value 0 MIN TYP 84 200 4.7 MAX UNITS dB s nF
MAX9039-MAX9043/MAX9050-MAX9053
Note 2: All devices are 100% production tested at TA = +25C. Limits over the extended temperature range are guaranteed by design. Note 3: Supply voltage range guaranteed by PSRR test on comparator and line regulation of REF. Note 4: VOS is defined as the center of the input-referred hysteresis band. Note 5: For the comparators with the inverting input (IN-) uncommitted. Note 6: Input bias current is the average of the inverting and noninverting input bias currents. Note 7: Not production tested. Guaranteed by design. Note 8: Guaranteed by CMRR test. Note 9: VOVERDRIVE is beyond the offset and hysteresis determined trip point. Note 10: Temperature coefficient is measured by the box method; i.e., the maximum VREF is divided by the maximum T. Note 11: Thermal hysteresis is defined as the change in VREF at +25C before and after cycling the device from TMIN to TMAX.
Typical Operating Characteristics
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25C, unless otherwise noted.)
MAX9039/MAX9040/MAX9041/MAX9050/MAX9051 SUPPLY CURRENT vs. TEMPERATURE
MAX9039/43/50-53 toc01
MAX9042/MAX9043/MAX9052/MAX9053 SUPPLY CURRENT vs. TEMPERATURE
VIN+ > VINVCC = 5.0V
MAX9039/43/50-53 toc02
MAX9039/MAX9040/MAX9041/MAX9050/MAX9051 SUPPLY CURRENT vs. SWITCHING FREQUENCY
MAX9039/43/50-53 toc03
60 50 SUPPLY CURRENT (A) 40 30 20 10 0
60 50 SUPPLY CURRENT (A) 40 30 20 10 0
200
VIN+ > VIN-
VCC = 5.0V
VCC = 2.7V
VCC = 2.7V
SUPPLY CURRENT (A)
150
100 VCC = 5.0V 50 VCC = 2.7V 0
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
0.01
0.1
1
10
100
1000
TEMPERATURE (C)
TEMPERATURE (C)
SWITCHING FREQUENCY (kHz)
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
Typical Operating Characteristics (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25C, unless otherwise noted.)
MAX9042/MAX9043/MAX9052/MAX9053 SUPPLY CURRENT vs. SWITCHING FREQUENCY
MAX9039/43/50-53 toc04
OUTPUT LOW VOLTAGE vs. OUTPUT SINK CURRENT
MAX9039/43/50-53 toc05
OUTPUT HIGH VOLTAGE vs. OUTPUT SOURCE CURRENT
OUTPUT HIGH VOLTAGE (VCC - VOH) (mV) VIN+ > VIN1000 VCC = 2.7V 100 VCC = 5.0V 10
MAX9039/43/50-53 toc06
250
10,000
10,000
VIN+ < VIN-
200 SUPPLY CURRENT (A)
1000 VCC = 2.7V VOL (mV) 100 VCC = 5.0V 10
150
100 VCC = 5.0V 50 0 0.01 0.1 1 10 100 1000 SWITCHING FREQUENCY (kHz) VCC = 2.7V
1 0.1 0.01 0.1 1 10 OUTPUT SINK CURRENT (mA)
1 0.1 0.01 0.1 1 10 OUTPUT SOURCE CURRENT (mA)
OUTPUT SHORT-CIRCUIT CURRENT vs. TEMPERATURE
MAX9039/43/50-53 toc07
OUTPUT SHORT-CIRCUIT CURRENT vs. TEMPERATURE
MAX9039/43/50-53 toc08
PROPAGATION DELAY vs. CAPACITIVE LOAD (VCC = 2.7V)
VOD = 50mV 550 tPD+ TO VOUT = 50% OF FINAL VALUE tPD- TO VOUT = 50% OF FINAL VALUE
MAX9039/43/50-53 toc09
120 100 80 60 40 20 0 -40 -20 0 20 40 60 80 TEMPERATURE (C) VIN+ > VINOUT SHORTED TO VEE VCC = 5.0V
100 OUTPUT SOURCE CURRENT (mA) VIN- > VIN+ OUT SHORTED TO VCC 80 VCC = 5.0V
600
OUTPUT SINK CURRENT (mA)
tPD (ns)
60
500
40 VCC = 2.7V 20
450 tPD+ TO VOUT = 10% OF FINAL VALUE 400 tPD- TO VOUT = 10% OF FINAL VALUE 0 100 200 300 400 500 600 700 800 900 1000 CAPACITIVE LOAD (pF)
VCC = 2.7V
0 -40 -20 0 20 40 60 80 TEMPERATURE (C)
350
PROPAGATION DELAY vs. CAPACITIVE LOAD (VCC = 5V)
MAX9039/43/50-53 toc10
PROPAGATION DELAY vs. TEMPERATURE
VOD = 50mV 600 550 tPD (ns) 500 450 400 350 300 tPD+ TO VOUT = 10% OF FINAL VALUE tPD- TO VOUT = 50% OF FINAL VALUE tPD+ TO VOUT = 50% OF FINAL VALUE
MAX9039/43/50-53 toc10a
PROPAGATION DELAY vs. INPUT OVERDRIVE
MAX9039/43/50-53 toc10b
650 600 550 tPD (ns) 500 450 400 350 300
VOD = 50mV
tPD+ TO VOUT = 50% OF FINAL VALUE tPD+ TO VOUT = 10% OF FINAL VALUE
650
900 800 700 tPD (ns) 600 tPD+, VCC = 5.0V 500 tPD+, VCC = 2.7V 400 300 200 tPD-, VCC = 5.0V tPD-, VCC = 2.7V 0
tPD- TO VOUT = 50% OF FINAL VALUE tPD- TO VOUT = 10% OF FINAL VALUE
tPD- TO VOUT = 10% OF FINAL VALUE -40 -20 0 20 40 60 80
0 100 200 300 400 500 600 700 800 900 1000 CAPACITIVE LOAD (pF)
20 40 60 80 100 120 140 160 180 200 INPUT OVERDRIVE (mV)
TEMPERATURE (C)
6
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
Typical Operating Characteristics (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25C, unless otherwise noted.)
PROPAGATION DELAY (tPD+)
MAX9039/43/50-53 toc11
MAX9039-MAX9043/MAX9050-MAX9053
PROPAGATION DELAY (tPD-)
MAX9039/43/50-53 toc12
SWITCHING CURRENT (OUT RISING EDGE)
A
MAX9039/43/50-53 toc13
A
A
B B C B 100ns/div A = IN+, 50mV/div B = OUT, 2V/div 100ns/div A = IN+, 50mV/div B = OUT, 2V/div A = IN+, 100mV/div B = OUT, 5V/div C = ICC, 1mA/div 100ns/div
SWITCHING CURRENT (OUT FALLING EDGE)
A
MAX9039/43/50-53 toc14
POWER-UP DELAY (OUT)
MAX9039/43/50-53 toc15
POWER-UP DELAY (REF)
MAX9039/43/50-53 toc16
A
A
B B
B C 100ns/div A = IN+, 100mV/div B = OUT, 5V/div C = ICC, 1mA/div 5s/div A = VCC, 2V/div B = OUT, 1V/div
C
100s/div A = VCC, 2V/div B = REF, 1V/div C = REF, 50mV/div, 2.048V OFFSET
INPUT BIAS CURRENT vs. INPUT VOLTAGE
MAX9039/43/50-53 tco17
MAX904_/MAX905_ REFERENCE OUTPUT VOLTAGE TEMPERATURE DRIFT
0.75 0.50 0.25 0 -0.25 -0.50 -0.75 THREE TYPICAL PARTS NORMALIZED TO +25C
MAX9039/43/50-53 toc18
MAX9039 REFERENCE OUTPUT VOLTAGE TEMPERATURE DRIFT
THREE TYPICAL PARTS NORMALIZED TO +25C 0
MAX9039/43/50-53 toc19
0.003
VIN- = 2.0V
1.00 OUTPUT VOLTAGE CHANGE (mV)
1 OUTPUT VOLTAGE CHANGE (mV)
INPUT BIAS CURRENT (nA)
0.002
IB+ IB-
-1
0.001
-2
0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VIN+ (V)
-1.00 -40 -20 0 20 40 60 80 TEMPERATURE (C)
-3 -40 -20 0 20 40 60 80 TEMPERATURE (C)
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
Typical Operating Characteristics (continued)
(VCC = 5V, VEE = 0V, VCM = 0V, IOUT = 0A, IREF = 0A, TA = +25C, unless otherwise noted.)
LINE REGULATION
MAX9039/43/50-53 toc20
LOAD REGULATION
REFERENCE OUTPUT VOLTAGE CHANGE (V) TA = +85C 1500 1000 500 0 -500 TA = -40C TA = +25C
MAX9039/43/50-53 toc21
REFERENCE OUTPUT VOLTAGE CHANGE (V)
150 100 50 0 TA = +25C -50 TA = -40C -100 -150 -200 2.5 3.0 3.5 4.0 4.5 5.0 TA = +85C
2000
-1000 -1500
5.5
-500
-300
-100
100
300
500
INPUT VOLTAGE (V)
LOAD CURRENT (A)
Pin Description
PIN MAX9039 UCSP A2 A1 B1 B3 A3 B2 -- -- -- -- -- -- -- 8 MAX9040 MAX9050 SOT23 1 2 3 4 5 -- -- -- -- -- -- -- -- MAX9041 MAX9051 SOT23 1 2 3 5 6 4 -- -- -- -- -- -- -- SO 6 4 3 1 7 2 5, 8 -- -- -- -- -- -- MAX9042 MAX9052 SO/MAX -- 4 -- 2 8 -- -- 1 3 5 6 7 -- MAX9043 MAX9053 MAX -- 5 -- 2 10 -- 9 1 4 6 7 8 3 OUT VEE IN+ REF VCC INN.C. OUTA INA+ INB+ INBOUTB INAComparator Output Negative Supply Voltage Comparator Noninverting Input Reference Voltage Output Positive Supply Voltage Comparator Inverting Input No Connection. Not internally connected. Comparator A Output Comparator A Noninverting Input Comparator B Noninverting Input Comparator B Inverting Input Comparator B Output Comparator A Inverting Input NAME FUNCTION
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
Detailed Description
The MAX9039-MAX9043 and MAX9050-MAX9053 feature single/dual, low-power, low-voltage comparators and a precision voltage reference. They operate from a single 2.5V to 5.5V (MAX9039/MAX904_) or 2.7V to 5.5V (MAX905_) supply. The single comparators with reference, (MAX9039/MAX9040/MAX9041/MAX9050/ MAX9051 consume only 40A of supply current, while the dual comparators with reference (MAX9042/ MAX9043/MAX9052/MAX9053) consume only 55A of supply current. Their common-mode input range extends 0.25V beyond each rail. Internal hysteresis ensures clean output switching, even with slow-moving input signals. The output stage employs a unique design that minimizes supply current surges while switching, virtually eliminating the supply glitches typical of many other comparators. Large internal output drivers allow rail-torail output swing that can sink and source up to 8mA of current. The precision reference uses a proprietary curvaturecorrection circuit and laser-trimmed thin-film resistors, resulting in a temperature coefficient of less than 30ppm/C over the extended temperature range and initial accuracy of 0.4% (A grade). The reference output voltage is set to 1.23V in the MAX9039, 2.048V in the MAX9040-MAX9043, and to 2.500V in the MAX9050-MAX9053. age is between the supply rails. Comparator inputs are protected from overvoltage by internal body diodes connected to the supply rails. As the input voltage exceeds the supply rails, these body diodes become forward biased and begin to conduct. Consequently, bias currents increase exponentially as the input voltage exceeds the supply rails.
MAX9039-MAX9043/MAX9050-MAX9053
Comparator Output Stage Circuitry
The comparators in these devices contain a unique output stage capable of rail-to-rail operation with loads up to 8mA. Many comparators consume orders-of-magnitude more current during switching than during steady-state operation. However, with this family of comparators, the supply current change during an output transition is extremely small. The Typical Operating Characteristics graph Supply Current vs. Switching Frequency shows the minimal supply current increase as the output switching frequency approaches 1MHz. This characteristic reduces the need for power-supply filter capacitors to reduce glitches created by comparator switching currents. Another advantage realized in high-speed, battery-powered applications is a substantial increase in battery life.
Applications Information
Additional Hysteresis
These comparators have 3mV internal hysteresis. Additional hysteresis can be generated with two resistors using positive feedback (Figure 1). Use the following procedure to calculate resistor values: 1) Calculate the trip points of the comparator using these formulas:
V CC - VREF R2 VTH = VREF + R1 + R2
Comparator Input Stage Circuitry
The devices' input common-mode range extends from (VEE - 0.25V) to (VCC + 0.25V). These comparators may operate at any differential input voltage within these limits. Input bias current is typically 1.0pA if the input volt-
(
)
R1
VCC
and
R2 VREF VCC IN+ OUT VIN IN-
R2 VTL = VREF 1 - R1 + R2
MAX9039-MAX9043 MAX9050-MAX9053
VEE
VTH is the threshold voltage at which the comparator switches its output from high to low as V IN rises above the trip point. VTL is the threshold voltage at which the comparator switches its output from low to high as VIN drops below the trip point. 2) The hysteresis band will be:
R2 VHYS = VTH - VTL = VCC R1 + R2
Figure 1. Additional Hysteresis
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
VCC VCC VIN 10k IN+ OUT INVEE MAX9039-MAX9043 MAX9050-MAX9053
amount of overshoot (or undershoot) and assist the circuit's transient response. When an application is not subject to transient conditions, the REF capacitor can be omitted.
Biasing for Data Recovery
Digital data is often embedded into a bandwidth- and amplitude-limited analog path. Recovering the data can be difficult. Figure 2 compares the input signal to a time-averaged version of itself. This self-biases the threshold to the average input voltage for optimal noise margin. Even severe phase distortion is eliminated from the digital output signal. Be sure to choose R1 and C1 so that:
fCAR >> 1 2R1C1
0.1F
Figure 2. Time Averaging of the Input Signal for Data Recovery
3) In this example, let VCC = 5V and VREF = 2.5V:
R2 VTH = 2.5 + 2.5 R1 + R2
where fCAR is the fundamental carrier frequency of the digital data stream.
and
R2 VTL = 2.5 1 - R1 + R2
UCSP Package Consideration
For general UCSP package information and PC layout considerations, please refer to Maxim Application Note,"Wafer-Level Chip-Scale Package."
4) Select R2. In this example, we will choose 1k. 5) Select VHYS. In this example, we will choose 50mV. 6) Solve for R1:
R2 VHYS = VCC R1 + R2 1000 0.050 = 5 R1 +1000
UCSP Reliability
The chip-scale package (UCSP) represents a unique packaging form factor that may not perform equally to a packaged product through traditional mechanical reliability tests. UCSP reliability is integrally linked to the user's assembly methods, circuit board material, and usage environment. The user should closely review these areas when considering use of a UCSP. Performance through Operating Life Test and Moisture Resistance remains uncompromised as it is primarily determined by the wafer-fabrication process. Mechanical stress performance is a greater consideration for a UCSP. UCSPs are attached through direct solder contact to the user's PC board, foregoing the inherent stress relief of a packaged product lead frame. Solder joint contact integrity must be considered. Information on Maxim's qualification plan, test data, and recommendations are detailed in the UCSP application note, which can be found on Maxim's website at www.maxim-ic.com.
where R1 100k, VTH = 2.525V, and VTL = 2.475V.
Board Layout and Bypassing
Power-supply bypass capacitors are not typically needed, but would be called for in cases where supply impedance is high, supply leads are long, or excessive noise is expected on the supply lines. Use 100nF bypass capacitors under these conditions. Minimize signal trace lengths to reduce stray capacitance.
Reference Output/Load Capacitance
The MAX9039/MAX904_/MAX905_ do not require an output capacitor on REF for frequency stability. They are stable for capacitive loads up to 4.7nF. However, in applications where the load or the supply can experience step changes, an output capacitor will reduce the
10
Chip Information
PROCESS: BiPOLAR
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
Functional Diagrams
MAX9039-MAX9043/MAX9050-MAX9053
1 OUTA 1 OUT VEE 2 2 REF MAX9042 MAX9052
VCC
8
OUTB
7
5
VCC
REF
3 INA+ REF
INB- 6
3
IN+ MAX9040 MAX9050
REF 4
4 VEE
INB+ 5
6 (A2)
OUT REF
VEE 4 (A1)
1 OUTA
MAX9043 MAX9053
2 REF REF 1 (B3)
VCC
10
OUTB
8
7 (A3) VCC
3 INA4 INA+
INB- 7
3 (B1) IN+ MAX9039 MAX9041 MAX9051 ( ) MAX9039 UCSP BUMPS.
IN- 2 (B2) 5 VEE
REF INB+ 6
Selector Guide
PART MAX9039 MAX9040 MAX9041 MAX9050 MAX9051 MAX9042 MAX9043 MAX9052 MAX9053 COMPARATORS PER PACKAGE 1 1 1 1 1 2 2 2 2 VREF (V) 1.230 2.048 2.048 2.500 2.500 2.048 2.048 2.500 2.500 REF Uncommitted REF Uncommitted REF/Uncommitted Uncommitted/Uncommitted REF/Uncommitted Uncommitted/Uncommitted 11 IN- CONNECTIONS Uncommitted
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
Pin Configurations (continued)
TOP VIEW
OUT 1
6
VCC
REF 1 IN- 2
8 7
N.C. VCC OUT N.C.
OUTA 1 REF 2 INA+ 3
8 7
VCC OUTB INBINB+
OUTA 1 REF INA2 3 4 5
10 9
VCC N.C. OUTB INBINB+
VEE 2
MAX9041 MAX9051
5
REF IN+ 3
MAX9041 MAX9051
6 5
MAX9042 MAX9052
6 5
MAX9043 MAX9053
8 7 6
INA+ VEE
IN+ 3
4
IN-
VEE 4
VEE 4
SOT23
SO
MAX/SO
MAX
Ordering Information (continued)
PART MAX9042AEUA MAX9042BEUA MAX9042AESA MAX9042BESA MAX9043AEUB MAX9043BEUB TEMP RANGE -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C PINPACKAGE 8 MAX 8 MAX 8 SO 8 SO 10 MAX 10 MAX 5 SOT23 5 SOT23 6 SOT23 6 SOT23 8 SO 8 SO 8 MAX 8 MAX 8 SO 8 SO 10 MAX 10 MAX TOP MARK -- -- -- -- -- -- ADNW ADNY AAHG AAHI -- -- AAHG AAHI -- -- -- --
INREF IN+ VIN
Typical Operating Circuit
VCC
VCC
0.1F OUT
MAX9050AEUK-T -40C to +85C MAX9050BEUK-T -40C to +85C MAX9051AEUT-T -40C to +85C MAX9051BEUT-T -40C to +85C MAX9051AESA -40C to +85C MAX9051BESA -40C to +85C MAX9052AEUA -40C to +85C MAX9052BEUA -40C to +85C MAX9052AESA -40C to +85C MAX9052BESA -40C to +85C MAX9053AEUB -40C to +85C MAX9053BEUB -40C to +85C
MAX9039 MAX9041/MAX9043 MAX9051/MAX9053
VEE
1.23V/2.048V/2.500V
12
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Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
PACKAGE TYPE 6 UCSP 5 SOT23 6 SOT23 8 SO 8 MAX 10 MAX PACKAGE CODE B6-3 -- -- -- -- -- DOCUMENT NO. 21-0097 21-0057 21-0058 21-0041 21-0036 21-0061
MAX9039-MAX9043/MAX9050-MAX9053
PACKAGE OUTLINE, 3x2 UCSP 21-0097 G
1 1
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13
6L, UCSP.EPS
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
Package Information (continued)
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
14
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SOT-23 5L .EPS
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
Package Information (continued)
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
MAX9039-MAX9043/MAX9050-MAX9053
INCHES DIM A A1 B C e E H L MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050
MILLIMETERS MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.25 0.19 1.27 BSC 3.80 4.00 5.80 6.20 0.40 1.27
N
E
H
VARIATIONS:
1
INCHES
MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.00 N MS012 8 AA 14 AB 16 AC
TOP VIEW
DIM D D D
MIN 0.189 0.337 0.386
MAX 0.197 0.344 0.394
D A e B A1 L C
0-8
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL DOCUMENT CONTROL NO. REV.
21-0041
B
1 1
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15
SOICN .EPS
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
Package Information (continued)
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
PACKAGE OUTLINE, SOT 6L BODY
21-0058
I
1
2
16
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6LSOT.EPS
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
Package Information (continued)
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
MAX9039-MAX9043/MAX9050-MAX9053
PACKAGE OUTLINE, SOT 6L BODY
21-0058
I
2
2
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17
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
Package Information (continued)
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
18
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10LUMAX.EPS
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs
Package Information (continued)
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
MAX9039-MAX9043/MAX9050-MAX9053
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8LUMAXD.EPS
19
Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs MAX9039-MAX9043/MAX9050-MAX9053
Revision History
REVISION NUMBER 0 1 2 3 4 5 6 REVISION DATE 10/99 1/00 4/00 4/00 10/02 10/07 3/09 Initial release Corrections to initial release Adding new part Increase in Max Supply Current specs Adding UCSP package for MAX9039 Adding input current ratings in Abs Max, style changes Update Chip Information, Package Info, correct MAX9053 part number, style changes DESCRIPTION PAGES CHANGED -- -- -- -- -- -- 1, 2, 10, 12-19
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) 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.

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