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19-0229; Rev 3; 6/97
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
_______________General Description
The MAX941/MAX942/MAX944 are single/dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply. These devices combine high speed, low power, and rail-to-rail inputs. Propagation delay is 80ns, while supply current is only 350A per comparator. The input common-mode range of the MAX941/ MAX942/MAX944 extends beyond both power-supply rails. The outputs pull to within 0.4V of either supply rail without external pull-up circuitry, making these devices ideal for interface with both CMOS and TTL logic. All input and output pins can tolerate a continuous shortcircuit fault condition to either rail. Internal hysteresis ensures clean output switching, even with slow-moving input signals. The MAX941 features latch enable and device shutdown. The single MAX941 and dual MAX942 are offered in a tiny MAX package. Both the single and dual MAX942 are available in 8-pin DIP and SO packages. The quad MAX944 comes in 14-pin DIP and narrow SO packages.
____________________________Features
o Available in MAX Package o Optimized for 3V and 5V Applications (operation down to 2.7V) o Fast, 80ns Propagation Delay (5mV overdrive) o Rail-to-Rail Input Voltage Range o Low Power: 1mW Power Dissipation per Comparator (3V) 350A Supply Current o Low, 1mV Offset Voltage o Internal Hysteresis for Clean Switching o Outputs Swing 200mV of Power Rails o CMOS/TTL-Compatible Outputs o Output Latch (MAX941 only) o Shutdown Function (MAX941 only)
MAX941/MAX942/MAX944
______________Ordering Information
PART TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C PIN-PACKAGE 8 Plastic DIP 8 SO Dice* 8 Plastic DIP 8 SO 8 MAX 8 CERDIP MAX941CPA MAX941CSA MAX941C/D MAX941EPA MAX941ESA MAX941EUA MAX941MJA
________________________Applications
3V/5V Systems Battery-Powered Systems Threshold Detectors/Discriminators Line Receivers Zero-Crossing Detectors Sampling Circuits
Ordering Information continued at end of data sheet. * Dice are specified at TA = +25C, DC parameters only.
__________________________________________________________Pin Configurations
TOP VIEW
MAX941
V+ IN+ 1 2 8 7 6 5 N.C. OUT GND LATCH OUTA INA1 2
MAX942
8 V+ OUTB INBINB+
OUTA 1 INA- 2 INA+ 3 V+ 4 INB+ 5 INB- 6 OUTB 7
14 OUTD
A
D
13 IND12 IND+ 11 GND
A B DIP/SO/MAX
7 6 5
IN- 3 SHDN 4
INA+ 3 GND 4
MAX944
B C
10 INC+ 9 8 INCOUTC
DIP/SO/MAX
DIP/SO ________________________________________________________________ Maxim Integrated Products 1
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.
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators MAX941/MAX942/MAX944
ABSOLUTE MAXIMUM RATINGS
Power-Supply Ranges Supply Voltage V+ to GND ................................................+7V Differential Input Voltage ..........................-0.3V to (V+ + 0.3V) Common-Mode Input Voltage ..................-0.3V to (V+ + 0.3V) ----- ---- - LATCH Input (MAX941 only) ....................-0.3V to (V+ + 0.3V) ---- --- SHDN Control Input (MAX941 only) .........-0.3V to (V+ + 0.3V) Continuous Power Dissipation (TA = +70C) 8-Pin Plastic DIP (derate 9.09mW/C above +70C) ...727mW 8-Pin SO (derate 5.88mW/C above +70C)................471mW 8-Pin MAX (derate 4.1mW/C above +70C) .............330mW 8-Pin CERDIP (derate 8.00mW/C above +70C)........640mW 14-Pin Plastic DIP (derate 10.00mW/C above +70C)..800mW 14-Pin SO (derate 8.33mW/C above +70C)..............667mW 14-Pin CERDIP (derate 9.09mW/C above +70C)......727mW Operating Temperature Ranges MAX94_C_ _ .......................................................0C to +70C MAX94_E_ _.....................................................-40C to +85C MAX94_MJ _ ..................................................-55C to +125C 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
(V+ = 2.7V to 6.0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C. See Note 14.) PARAMETER Positive Supply Voltage Input Voltage Range SYMBOL V+ VCMR (Note 1) TA = +25C MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ MAX941EUA/MAX942EUA TA = TMIN to TMAX MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ MAX941EUA/MAX942EUA MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ MAX941EUA/MAX942EUA TA = TMIN to TMAX MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ MAX941EUA/MAX942EUA MAX94_C MAX94_E/M MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ MAX941EUA/MAX942EUA Power-Supply Rejection Ratio Output High Voltage Output Low Voltage Output Leakage Current 2 PSRR 2.7V V+ 6.0V, VCM = 0V ISOURCE = 400A ISOURCE = 4mA ISINK = 400A ISINK = 4mA (Note 6) MAX94_C_ _, MAX94_EP_, MAX94_ES_, MAX94_MJ_ MAX941EUA/MAX942EUA 150 150 10 80 80 80 80 V+ - 0.4 V+ - 0.2 V+ - 0.4 V+ - 0.3 0.2 0.3 0.4 0.4 1 1 1 CONDITIONS MIN 2.7 -0.2 1 1 TYP MAX 6.0 V+ + 0.2 3 4 4 6 2 3 3 5.5 300 400 100 300 800 300 350 V V A V/V nA nA V/V mV mV mV UNITS V V mV
Input-Referred Trip Points
VTRIP
VCM = 0V or VCM = V+ (Note 2)
Input Offset Voltage
VOS
VCM = 0V or VCM = V+ (Note 3)
TA = +25C
Input Bias Current Input Offset Current Common-Mode Rejection Ratio
IB IOS CMRR
VIN = VOS, VCM = 0V or VCM = V+ (Note 4) VIN = VOS, VCM = 0V or V+ (Note 5)
VOH VOL ILEAK
_______________________________________________________________________________________
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 2.7V to 6.0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C. See Note 14.) PARAMETER SYMBOL V+ = 3V Supply Current per Comparator ICC V+ = 5V CONDITIONS MAX941 MAX942/MAX944 MAX941 MAX942/MAX944 MAX941 MAX942/MAX944 MAX94_C MAX94_E/M MIN TYP 380 350 430 400 12 1.0 1.0 80 80 10 10
V + -- + 0.4 -- 2 V + -- -- 2 V + -- -- 2 V + -- - 0.4 -- 2
MAX941/MAX942/MAX944
MAX 600 500 700 600 60 4.2 3.6 150 200
UNITS
A
MAX941 only, shutdown mode (V+ = 3V) Power Dissipation per Comparator Propagation Delay Differential Propagation Delay Propagation Delay Skew Logic Input Voltage High Logic Input Voltage Low Logic Input Current Data-to-Latch Setup Time Latch-to-Data Hold Time Latch Pulse Width Latch Propagation Delay Shutdown Time Shutdown Disable Time Note 1: Note 2: VIH VIL IIL, IIH tS tH tLPW tLPD PD tPD+, tPDdtPD (Note 7) (Note 8) (Note 9) (Note 10) (Note 11) (Note 11) VLOGIC = 0V or V+ (Note 11) (Note 12) (Note 12) MAX941 only MAX941 only (Note 13) (Note 13)
mW ns ns ns V V A ns ns ns ns s s
2 20 30 50 70 3 10
10
Note 3: Note 4: Note 5: Note 6: Note 7: Note 8: Note 9: Note 10: Note 11: Note 12: Note 13: Note 14:
Inferred from the CMRR test. Note also that either or both inputs can be driven to the absolute maximum limit (0.3V beyond either supply rail) without damage or false output inversion. The input-referred trip points are the extremities of the differential input voltage required to make the comparator output change state. The difference between the upper and lower trip points is equal to the width of the input-referred hysteresis zone. See Figure 1. VOS is defined as the center of the input-referred hysteresis zone. See Figure 1. The polarity of IB reverses direction as VCM approaches either supply rail. See Typical Operating Characteristics for more detail. Specified over the full common-mode range (VCMR). Applies to the MAX941 only when in shutdown mode. Specification is for current flowing into or out of the output pin for VOUT driven to any voltage from V+ to GND. Typical power dissipation specified with V+ = 3V; maximum with V+ = 6V. Parameter is guaranteed by design and specified with VOD = 5mV and CLOAD = 15pF in parallel with 400A of sink or source current. VOS is added to the overdrive voltage for low values of overdrive. See Figure 2. Specified between any two channels in the MAX942/MAX944. Specified as the difference between tPD+ and tPD- for any one comparator. --- - ---- ----- ---- - Applies to the MAX941 only for both SHDN and LATCH pins. ----- ---- - ----- ---- - Applies to the MAX941 only. Comparator is active with LATCH pin driven high and is latched with LATCH pin driven low. See Figure 2. --- - ---- --- - ---- Applicable to the MAX941 only. Comparator is active with SHDN pin driven high and is in shutdown with SHDN pin driven --- - ---- low. Shutdown disable time is the delay when SHDN is driven high to the time the output is valid. The MAX941EUA and MAX942EUA are 100% production tested at TA = +25C. Specifications over temperature are guaranteed by design.
_______________________________________________________________________________________
3
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators MAX941/MAX942/MAX944
__________________________________________Typical Operating Characteristics
(V+ = 3.0V, TA = +25C, unless otherwise noted.)
PROPAGATION DELAY vs. INPUT OVERDRIVE
MAX941-01
PROPAGATION DELAY vs. SOURCE IMPEDANCE
MAX941-02
PROPAGATION DELAY vs. CAPACITIVE LOAD
MAX941-03
100 90 PROPAGATION DELAY (ns) 80 70 60 50 40 30 0 25 50 75 RS = 10 CLOAD = 15pF tPDtPD+
400 350 PROPAGATION DELAY (ns) 300 250 200 150 100 50 CLOAD = 15pF VOD = 5mV tPDtPD+
180 160 140 120 100 80 60 RS = 10 VOD = 5mV 0 100 200 300 400
PROPAGATION DELAY (ns)
tPD+
tPD-
100
10
100
1k
10k
100k
500
INPUT OVERDRIVE (mV)
SOURCE IMPEDANCE ()
CAPACITIVE LOAD (pF)
PROPAGATION DELAY vs. TEMPERATURE
MAX941-04
PROPAGATION DELAY vs. SUPPLY VOLTAGE
MAX941-05
OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT
TA = +125C TA = +25C 2.9 TA = -55C VOH (V) 2.8
MAX941-06
130 120 PROPAGATION DELAY (ns) 110 100 90 80 70 60 RS = 10 CLOAD = 15pF VOD = 5mV -60 -40 -20 0
100 90 PROPAGATION DELAY (ns) 80 tPD70 60 50 40 30 RS = 10 CLOAD = 15pF VOD = 5mV 2 3 4 5 6 tPD+
3.0
2.7
2.6
2.5 1 10 100 1000 10000 SUPPLY VOLTAGE (V) SOURCE CURRENT (A)
20 40 60 80 100 120 140
TEMPERATURE (C)
OUTPUT LOW VOLTAGE vs. SINK CURRENT
MAX941-07
MAX941 TOTAL SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX941-08
MAX942 TOTAL SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX941-09
0.5
600 500 SUPPLY CURRENT (A) 400 300 200 100 TA = +125C
800 TA = +125C TA = +25C 600
0.4 0.3 TA = -55C TA = +25C
700 TA = +25C SUPPLY CURRENT (A)
VOL (V)
0.2
TA = -55C
500 TA = -55C 400
0.1
0 1 10
TA = +125C 0 100 1000 10000 2 SINK CURRENT (A) 3 4 5 SUPPLY VOLTAGE (V) 6
300 2 3 4 5 SUPPLY VOLTAGE (V) 6
4
_______________________________________________________________________________________
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
____________________________Typical Operating Characteristics (continued)
(V+ = 3.0V, TA = +25C, unless otherwise noted.)
MAX941/MAX942/MAX944
MAX944 TOTAL SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX941-10
INPUT VOLTAGE RANGE vs. TEMPERATURE
SHORT-CIRCUIT OUTPUT CURRENT (mA) V+ = 3.0V VCM+ INPUT VOLTAGE RANGE (V) 3
MAX941-11
SHORT-CIRCUIT OUTPUT CURRENT vs. TEMPERATURE
MAX941-12
2.00
4
40 OUTPUT SHORTED TO V+ (SINKING) 30
1.75 SUPPLY CURRENT (mA)
TA = +125C
1.50 TA = +25C 1.25
2
20
1
1.00 TA = -55C 0.75 2 3 4 5 SUPPLY VOLTAGE (V) 6
0 -1 -60 -40 -20 0
10
VCM-
OUTPUT SHORTED TO GND (SOURCING)
0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) TEMPERATURE (C)
VOLTAGE TRIP POINTS / INPUT OFFSET VOLTAGE vs. TEMPERATURE
MAX941-13
INPUT BIAS CURRENT / INPUT OFFSET CURRENT vs. TEMPERATURE
MAX941-14
INPUT BIAS CURRENT (IB+, IB-) vs. VCM
TA = -55C TA = +25C TA = +125C VIN+ = VINNEGATIVE VALUES REPRESENT CURRENT FLOWING INTO THE DEVICE
MAX941-16
1000 VTRIP+ 500 TRIP POINTS / VOS (V) 0 -500 VTRIP-
250 INPUT BIAS / OFFSET CURRENT (nA)
250 200 150 IB+, IB- (nA) 100 50 0
200 IB+ 150 IB100
VOS
-1000 -1500 VCM = 0.0V -2000 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C)
V+ = 6V
50 -50 0 IOS -100 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) 0 1 2 3 4 5 COMMON-MODE VOLTAGE (V) 6
MAX941 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE
SHUTDOWN SUPPLY CURRENT (A)
MAX941-17
10MHz RESPONSE
40 V+ = 6.0V 30
VOS
INPUT 50mV/div
20 V+ = 2.7V 10
V+ OUTPUT 1V/div GND
0 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C)
50ns/div
_______________________________________________________________________________________
5
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators MAX941/MAX942/MAX944
_____________________________Typical Operating Characteristics (continued)
(V+ = 3.0V, TA = +25C, unless otherwise noted.) PROPAGATION DELAY (tPD+)
VOD VOS INPUT 50mV/div
PROPAGATION DELAY (tPD-)
INPUT 50mV/div VOS VOD V+ OUTPUT 1V/div V+ 2 GND OUTPUT 1V/div
V+ V+ 2 GND
20ns/div tPD+ INPUT STEP = 100mV VOD = +5mV
20ns/div tPDINPUT STEP = 100mV VOD = -5mV
______________________________________________________________Pin Description
PIN NAME MAX941 -- --
--
FUNCTION Comparator A output Comparator A inverting input Comparator A noninverting input Positive supply (V+ to GND must be 7V) Comparator B noninverting input Comparator B inverting input Comparator B output Comparator C output Comparator C inverting input Comparator C noninverting input Ground Comparator D noninverting input Comparator D inverting input Comparator D output Noninverting input Inverting input ---- --- Shutdown: MAX941 is active when SHDN is driven high; MAX941 is in shutdown ---- --- when SHDN is driven low. ---- - ---- ---- - ---- The output is latched when LATCH is low. The latch is transparent when LATCH is high. Comparator output No connect--not internally connected
MAX942 1 2 3 8 5 6 7 -- -- -- 4 -- -- -- -- -- -- -- -- --
MAX944 1 2 3 4 5 6 7 8 9 10 11 12 13 14 -- -- -- -- -- -- OUTA INAINA+ V+ INB+ INBOUTB OUTC INCINC+ GND IND+ INDOUTD IN+ IN---- --- SHDN ---- - ---- LATCH OUT N.C.
1 -- -- -- -- -- -- 6 -- -- -- 2 3 4 5 7 8
6
_______________________________________________________________________________________
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
eliminates these resistors and the equations needed to determine appropriate values. Figure 1 illustrates the case where IN- is fixed and IN+ is varied. If the inputs were reversed, the figure would look the same, except the output would be inverted. The MAX941 includes an internal latch that allows stor---- - ---- age of comparison results. The LATCH pin has a high ---- - ---- input impedance. If LATCH is high, the latch is transparent (i.e., the comparator operates as though the latch is not present). The comparator's output state is stored ---- - ---- when LATCH is pulled low. All timing constraints must be met when using the latch function (Figure 2).
MAX941/MAX942/MAX944
VTRIP+ VHYST VIN+ V + VTRIPVOS = TRIP+ 2 VIN- = 0V
VTRIP-
VOH COMPARATOR OUTPUT VOL
Shutdown Mode (MAX941 Only)
The MAX941 shuts down when SHDN is low. When shut down, the supply current drops to less than 60A, and the three-state output becomes high impedance. The - ----- -- S H D N pin has a high input impedance. Connect ---- ---- SHDN to V+ for normal operation. Exit shutdown with ---- - ---- LATCH high; otherwise, the output will be indeterminate.
--- - ----
Input Stage Circuitry
Figure 1. Input and Output Waveform, Noninverting Input Varied
_______________Detailed Description
The MAX941/MAX942/MAX944 single-supply comparators feature internal hysteresis, high speed, and low power. Their outputs are guaranteed to pull within 0.4V of either supply rail without external pull-up or pulldown circuitry. Rail-to-rail input voltage range and lowvoltage single-supply operation make these devices ideal for portable equipment. The MAX941/MAX942/ MAX944 interface directly to CMOS and TTL logic.
The MAX941/MAX942/MAX944 include internal protection circuitry that prevents damage to the precision input stage from large differential input voltages. This protection circuitry consists of four back-to-back diodes between IN+ and IN- as well as two 2.5k resistors (Figure 3). The diodes limit the differential voltage applied to the internal circuitry of the comparators to be no more than 4VF, where VF is the forward voltage drop of the diode (about 0.7V at +25C). For a large differential input voltage (exceeding 4VF), this protection circuitry increases the input bias current at IN+ (source) and IN- (sink). (IN+ - IN-) - 4VF 2 x 2.5k Input current with large differential input voltages should not be confused with input bias current (IB). As long as the differential input voltage is less than 4VF, this input current is equal to IB. The protection circuitry also allows for the input common-mode range of the MAX941/MAX942/MAX944 to extend beyond both power-supply rails. The output is in the correct logic state if one or both inputs are within the common-mode range. Input Current =
Timing
Most high-speed comparators oscillate in the linear region because of noise or undesired parasitic feedback. This tends to occur when the voltage on one input is at or equal to the voltage on the other input. To counter the parasitic effects and noise, the MAX941/ MAX942/MAX944 have internal hysteresis. The hysteresis in a comparator creates two trip points: one for the rising input voltage and one for the falling input voltage (Figure 1). The difference between the trip points is the hysteresis. When the comparator's input voltages are equal, the hysteresis effectively causes one comparator input voltage to move quickly past the other, thus taking the input out of the region where oscillation occurs. Standard comparators require hysteresis to be added with external resistors. The MAX941/MAX942/MAX944's fixed internal hysteresis
_______________________________________________________________________________________
7
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators MAX941/MAX942/MAX944
tS V+ DIFFERENTIAL INPUT VOLTAGE 0V tLPW V+ LATCH V+ 2 0V VOH OUT V+ 2 VOL tPD tLPD VOS tH
Figure 2. MAX941 Timing Diagram with Latch Operator
Output Stage Circuitry
The MAX941/MAX942/MAX944 contain a current-driven output stage as shown in Figure 4. During an output transition, ISOURCE or ISINK is pushed or pulled to the output pin. The output source or sink current is high during the transition, creating a rapid slew rate. Once the output voltage reaches VOH or VOL, the source or sink current decreases to a small value, capable of maintaining the VOH or VOL static condition. This significant decrease in current conserves power after an output transition has occurred. One consequence of a current-driven output stage is a linear dependence between the slew rate and the load capacitance. A heavy capacitive load will slow down a voltage output transition. This can be useful in noisesensitive applications where fast edges may cause interference.
__________Applications Information
Circuit Layout and Bypassing
The high gain bandwidth of the MAX941/MAX942/ MAX944 requires design precautions to realize the comparators' full high-speed capability. The recommended precautions are: 1) Use a printed circuit board with a good, unbroken, low-inductance ground plane. 2) Place a decoupling capacitor (a 0.1F ceramic capacitor is a good choice) as close to V+ as possible. 3) Pay close attention to the decoupling capacitor's bandwidth, keeping leads short. 4) On the inputs and outputs, keep lead lengths short to avoid unwanted parasitic feedback around the comparators. 5) Solder the device directly to the printed circuit board instead of using a socket.
8
_______________________________________________________________________________________
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators MAX941/MAX942/MAX944
2.5k IN+ TO INTERNAL CIRCUITRY
MAX941 MAX942 MAX944
VCC ISOURCE
MAX941 MAX942 MAX944
OUTPUT
IN- 2.5k
TO INTERNAL CIRCUITRY ISINK 0V
Figure 3. Input Stage Circuitry
Figure 4. Output Stage Circuitry
VDD = 3.3V V+ = 3V VREFC SERIAL DIGITAL INPUT SDI VDD 10k COAX LINE 20k DACOUTC GND VSS 3V
8-BIT DAC
MAX512
MAX941
0V CLEAN DIGITAL SIGNAL
MAX941
20k
ANALOG IN
Figure 5. 3.3V Digitally Controlled Threshold Detector
Figure 6. Line Transceiver Application
_______________________________________________________________________________________
9
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators MAX941/MAX942/MAX944
_Ordering Information (continued)
PART MAX942CPA MAX942CSA MAX942C/D MAX942EPA MAX942ESA MAX942EUA MAX942MJA MAX944CPD MAX944CSD MAX944EPD MAX944ESD MAX944MJD TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -55C to +125C PIN-PACKAGE 8 Plastic DIP 8 SO Dice* 8 Plastic DIP 8 SO 8 MAX 8 CERDIP 14 Plastic DIP 14 SO 14 Plastic DIP 14 SO 14 CERDIP
V+
_________________Chip Topographies
MAX941
OUT IN+ 0.056" (1.42mm) INGND
* Dice are specified at TA = +25C, DC parameters only.
SHDN
LATCH
0.058" (1.47mm)
MAX942
INBINB+
OUTB 0.062" (1.57mm) V+ GND
OUTA
INA-
INA+ 0.064" (1.63mm)
TRANSISTOR COUNT: 134(MAX941), 190(MAX942) SUBSTRATE CONNECTED TO GND
10 ______________________________________________________________________________________
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
________________________________________________________Package Information
8LUMAXD.EPS
MAX941/MAX942/MAX944
______________________________________________________________________________________
11
High-Speed, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators MAX941/MAX942/MAX944
___________________________________________Package Information (continued)
PDIPN.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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 1997 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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