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 350μA 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 pullup circuitry, making these devices ideal for
interface with both CMOS and TTL logic. All input and
output pins can tolerate a continuous short-circuit 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 μMAX® 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.
Applications
●3V/5V Systems
●Battery-Powered Systems
●Threshold Detectors/Discriminators
●Line Receivers
●Zero-Crossing Detectors
●Sampling Circuits
Features
●Available in μMAX Package
●Optimized for 3V and 5V Applications
(Operation Down to 2.7V)
●Fast, 80ns Propagation Delay (5mV Overdrive)
●Rail-to-Rail Input Voltage Range
● Low 350μA Supply Current per Comparator
●Low, 1mV Offset Voltage
●Internal Hysteresis for Clean Switching
●Outputs Swing 200mV of Power Rails
●CMOS/TTL-Compatible Outputs
●Output Latch (MAX941 Only)
●Shutdown Function (MAX941 Only)
Ordering Information continued at end of data sheet.
μMAX is a registered trademark of Maxim Integrated Products, Inc.
19-0229; Rev 10; 9/14
T = Tape and reel.
PART TEMP RANGE PIN-
PACKAGE
MAX941CPA 0°C to +70°C 8 PDIP
MAX941CSA 0°C to +70°C 8 SO
MAX941EPA -40°C to +85°C 8 PDIP
MAX941ESA -40°C to +85°C 8 SO
MAX941EUA-T -40°C to +85°C 8 µMAX
MAX941AUA-T -40°C to +125°C 8 µMAX
1
2
3
4
8
7
6
5
N.C.
OUT
GND
LATCH
SHDN
IN-
IN+
V+
PDIP/SO/µMAX
1
2
3
4
8
7
6
5
V+
OUTB
INB-
INB+
GND
INA+
INA-
OUTA
MAX942
PDIP/SO/µMAX
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUTD
IND-
IND+
GND
V+
INA+
INA-
OUTA
INC+
INC-
OUTC
OUTB
INB-
INB+
PDIP/SO
MAX941
MAX944
TOP VIEW
A
B
A D
B C
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Pin Congurations
Ordering Information
Power-Supply Ranges
Supply Voltage V+ to GND .............................................+6.5V
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)
Current Into Input Pins .....................................................±20mA
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ..727mW
8-Pin SO (derate 5.88mW/°C above +70°C) ............... 471mW
8-Pin μMAX (derate 4.1mW/°C above +70°C) ............330mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ..800mW
14-Pin SO (derate 8.33mW/°C above +70°C) ............. 667mW
Operating Temperature Ranges
MAX94_C_ _ ......................................................0°C to +70°C
MAX94_E_ _ .................................................. -40°C to +85°C
MAX94_AUA ................................................. -40°C to +125°C
MAX942MSA ................................................ -55°C to +125°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(V+ = 2.7V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 14)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Positive Supply Voltage V+ 2.7 5.5 V
Input Voltage Range VCMR (Note 1) -0.2 V+ + 0.2 V
Input-Referred Trip
Points VTRIP
VCM =
0V or
VCM = V+
(Note 2)
TA = +25°C
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA 1 3 mV
MAX941_UA/MAX942_UA 1 4
T
A
= T
MIN
to T
MAX
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA 4mV
MAX941_UA/MAX942_UA 6
Input Offset Voltage V
OS
VCM =
0V or
VCM = V+
(Note 3)
TA = +25°C
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA 1 2 mV
MAX941_UA/MAX942_UA 1 3
T
A
= T
MIN
to T
MAX
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA 3mV
MAX941_UA/MAX942_UA 5.5
Input Bias Current I
B
V
IN
= V
OS
, V
CM
= 0V or
V
CM
= V+ (Note 4)
MAX94_C 150 300 nA
MAX94_E/A, MAX942MSA 150 400
Input Offset Current I
OS
V
IN
= V
OS
, V
CM
= 0V or V+ 10 150 nA
Input Differential Clamp
Voltage V
CLAMP
Force 100μA into IN+, IN- = GND,
measure V
IN+
- V
IN-
, Figure 3 2.2 V
Common-Mode Rejection
Ratio CMRR (Note 5)
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA 80 300 μV/V
MAX941_UA/MAX942_UA 80 800
Power-Supply Rejection
Ratio
PSRR 2.7V ≤ V+ ≤ 5.5V,
V
CM
= 0V
MAX94_C_ _, MAX94_EP_,
MAX94_ES_, MAX942MSA 80 300 μV/V
MAX941_UA/MAX942_UA 80 350
Output High Voltage V
OH
I
SOURCE
= 400μA
V+ - 0.4
V+ -
0.2 V
I
SOURCE
= 4mA
V+ - 0.4
V+ -
0.3
Output Low Voltage V
OL
I
SINK
= 400μA 0.2 0.4 V
I
SINK
= 4mA 0.3 0.4
Output Leakage Current I
LEAK
(Note 6) 1 µA
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
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Absolute Maximum Ratings
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 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 14)
Note 1: 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.
Note 2: 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).
Note 3: VOS is defined as the center of the input-referred hysteresis zone (see Figure 1).
Note 4: The polarity of IB reverses direction as VCM approaches either supply rail. See Typical Operating Characteristics for more
detail.
Note 5: Specified over the full common-mode range (VCMR).
Note 6: 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.
Note 7: Typical power dissipation specified with V+ = 3V; maximum with V+ = 5.5V.
Note 8: Parameter is guaranteed by design and specified with VOD = 5mV and CLOAD = 15pF in parallel with 400μA of sink or
source current. VOS is added to the overdrive voltage for low values of overdrive (see Figure 2).
Note 9: Specified between any two channels in the MAX942/MAX944.
Note 10: Specified as the difference between tPD+ and tPD- for any one comparator.
Note 11: Applies to the MAX941 only for both SHDN and LATCH pins.
Note 12: Applies to the MAX941 only. Comparator is active with LATCH pin driven high and is latched with LATCH pin driven low
(see Figure 2).
Note 13: 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.
Note 14: The MAX941_UA and MAX942_UA are 100% production tested at TA = +25°C. Specifications over temperature are
guaranteed by design.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Current per
Comparator I
CC
V+ = 3V MAX941 380 600
μA
MAX942/MAX944 350 500
V+ = 5V MAX941 430 700
MAX942/MAX944 400 600
MAX941 only, shutdown mode (V+ = 3V) 12 60
Power Dissipation per
Comparator PD (Note 7) MAX941 1.0 4.2 mW
MAX942/MAX944 1.0 3.6
Propagation Delay t
PD+
,
t
PD-
(Note 8) MAX94_C 80 150 ns
MAX94_E/A, MAX942MSA 80 200
Differential Propagation
Delay dt
PD
(Note 9) 10 ns
Propagation Delay Skew (Note 10) 10 ns
Logic-Input Voltage High V
IH
(Note 11) V+/2 + 0.4 V
Logic-Input Voltage Low V
IL
(Note 11) V+/2 - 0.4 V
Logic-Input Current I
IL
, I
IH
V
LOGIC
= 0V or V+ (Note 11) 2 10 µA
Data-to-Latch Setup Time t
S
(Note 12) 20 ns
Latch-to-Data Hold Time t
H
(Note 12) 30 ns
Latch Pulse Width t
LPW
MAX941 only 50 ns
Latch Propagation Delay t
LPD
MAX941 only 70 ns
Shutdown Time (Note 13) 3 ns
Shutdown Disable Time (Note 13) 10 ns
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
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3
Electrical Characteristics (continued)
(V+ = 3.0V, TA = +25°C, unless otherwise noted.)
100
40
0 100
PROPAGATION DELAY vs.
INPUT OVERDRIVE
50
90
MAX941 toc01
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (ns)
75
70
60
25 50
80
30
tPD+
tPD-
RS = 10Ω
CLOAD = 15pF
130
-60 -20 40 80
PROPAGATION DELAY vs.
TEMPERATURE
70
110
MAX941 toc04
TEMPERATURE (°C)
PROPAGATION DELAY (ns)
0 60
90
120
60
100
80
-40 20 100 120 140
RS = 10Ω
CLOAD = 15pF
VOD = 5mV
0
1
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
MAX941 toc07
SINK CURRENT (µA)
V
OL
(V)
0.1
0.2
0.3
0.4
0.5
10 100 1000 10,000
TA = -55°C
TA = +25°C
TA = +125°C
400
100
10 100k
PROPAGATION DELAY vs.
SOURCE IMPEDANCE
150
350
MAX941 toc02
SOURCE IMPEDANCE (Ω)
PROPAGATION DELAY (ns)
10k
250
200
100 1k
300
50
tPD+
tPD-
CLOAD = 15pF
VOD = 5mV
100
40
2 6
PROPAGATION DELAY vs.
SUPPLY VOLTAGE
50
90
MAX941 toc05
SUPPLY VOLTAGE (V)
PROPAGATION DELAY (ns)
5
70
60
3 4
80
30
tPD+
tPD-
RS = 10Ω
CLOAD = 15pF
VOD = 5mV
MAX941 TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT (µA)
0
2
SUPPLY VOLTAGE (V)
100
200
300
400
500
600
3 4 5 6
MAX941 toc08
TA = +125°C
TA = +25°C
TA = -55°C
180
60
0
PROPAGATION DELAY vs.
CAPACITIVE LOAD
80
160
MAX941 toc03
CAPACITIVE LOAD (pF)
PROPAGATION DELAY (ns)
400
120
100
100 300 500
140
200
RS = 10Ω
VOD = 5mV
tPD+
tPD-
2.6
1 10,000
OUTPUT HIGH VOLTAGE vs.
SOURCE CURRENT
2.7
MAX941 toc06
SOURCE CURRENT (µA)
VOH (V)
1000
2.9
2.8
10 100
3.0
2.5
TA = +125°C
TA = +25°C
TA = -55°C
MAX942 TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT (µA)
300
SUPPLY VOLTAGE (V)
400
500
600
700
800
MAX941 toc09
TA = +125°C
TA = +25°C
TA = -55°C
2 3 4 5 6
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
Maxim Integrated
│
4
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Typical Operating Characteristics
(V+ = 3.0V, TA = +25°C, unless otherwise noted.)
MAX944 TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT (mA)
0.75
SUPPLY VOLTAGE (V)
1.00
1.25
1.50
1.75
2.00
MAX941 toc10
TA = +25°C
TA = -55°C
2 3 4 5 6
TA = +125°C
VOLTAGE TRIP POINTS/INPUT OFFSET
VOLTAGE vs. TEMPERATURE
TRIP POINTS / V
OS
(µV)
TEMPERATURE (°C)
-2000
-1500
-500
0
1000
-1000
MAX941 toc13
-60 140-40 -20 0 20 40 60 80 100 120
500
VTRIP+
VTRIP-
VOS
VCM = 0
MAX941 SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
SHUTDOWN SUPPLY CURRENT (µA)
0
10
20
30
40
TEMPERATURE (°C)
MAX941 toc16
-60 -40 -20 0 20 40 60 80 100 120 140
V+ = 6.0V
V+ = 2.7V
10MHz RESPONSE
INPUT
50mV/div
OUTPUT
1V/div
VOS
V+
GND
50ns/div
MAX941 toc17
INPUT VOLTAGE RANGE
vs. TEMPERATURE
INPUT VOLTAGE RANGE (V)
TEMPERATURE (°C)
-1
0
2
3
4
1
-60 140-40 -20 0 20 40 60 80 100 120
MAX941 toc11
VCM+
V+ = 3.0V
VCM-
INPUT BIAS CURRENT/INPUT OFFSET
CURRENT vs. TEMPERATURE
INPUT BIAS / OFFSET CURRENT (nA)
TEMPERATURE (°C)
0
50
150
200
250
100
MAX941-14
-60 140-40 -20 0 20 40 60 80 100 120
IB+
IB-
IOS
SHORT-CIRCUIT OUTPUT CURRENT
vs. TEMPERATURE
SHORT-CIRCUIT OUTPUT CURRENT (mA)
0
10
20
30
40
TEMPERATURE (°C)
MAX941 toc12
-60 -40 -20 020 40 60 80 100 120 140
OUTPUT SHORTED
TO V+ (SINKING)
OUTPUT SHORTED
TO GND (SOURCING)
INPUT BIAS CURRENT (IB+, IB-)
vs. COMMON-MODE VOLTAGE
IB+, IB- (nA)
-100
COMMON-MODE VOLTAGE (V)
MAX941 toc15
-50
0
50
100
150
200
250
0 1 2 3 4 5 6
TA = -55°C
TA = +25°C
TA = +125°C
VIN+ = VIN-
NEGATIVE VALUES
REPRESENT CURRENT
FLOWING INTO THE
DEVICE
V+ = 6V
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
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Typical Operating Characteristics (continued)
(V+ = 3.0V, TA = +25°C, unless otherwise noted.)
PIN NAME FUNCTION
MAX941 MAX942 MAX944
— 1 1 OUTA Comparator A Output
— 2 2 INA- Comparator A Inverting Input
— 3 3 INA+ Comparator A Noninverting Input
1 8 4 V+ Positive Supply (V+ to GND must be ≤ 6.5V)
— 5 5 INB+ Comparator B Noninverting Input
— 6 6 INB- Comparator B Inverting Input
— 7 7 OUTB Comparator B Output
— — 8 OUTC Comparator C Output
— — 9 INC- Comparator C Inverting Input
— — 10 INC+ Comparator C Noninverting Input
6 4 11 GND Ground
— — 12 IND+ Comparator D Noninverting Input
— — 13 IND- Comparator D Inverting Input
— — 14 OUTD Comparator D Output
2 — — IN+ Noninverting Input
3 — — IN- Inverting Input
4 — — SHDN Shutdown: MAX941 is active when SHDN is driven high; MAX941 is in shutdown
when SHDN is driven low.
5 — — LATCH The output is latched when LATCH is low. The latch is transparent when LATCH
is high.
7 — — OUT Comparator Output
8 — — N.C. No Connection. Not internally connected.
PROPAGATION DELAY (tPD+)
INPUT STEP = 100mV
VOD = +5mV
INPUT
50mV/div
OUTPUT
1V/div
VOD
VOS
V+
V+
2
GND
20ns/div
tPD+
MAX941 toc18
PROPAGATION DELAY (tPD-)
INPUT STEP = 100mV
VOD = -5mV
INPUT
50mV/div
OUTPUT
1V/div
VOD
VOS
V+
V+
2
GND
20ns/div
tPD-
MAX941 toc19
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
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Pin Description
Typical Operating Characteristics (continued)
Detailed Description
The MAX941/MAX942/MAX944 single-supply compara-
tors feature internal hysteresis, high speed, and low
power. Their outputs are guaranteed to pull within 0.4V
of either supply rail without external pullup or pulldown
circuitry. Rail-to-rail input voltage range and low-voltage
single-supply operation make these devices ideal for por-
table equipment. The MAX941/MAX942/MAX944 inter-
face directly to CMOS and TTL logic.
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 com-
parator 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 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 transpar-
ent (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).
Shutdown Mode (MAX941 Only)
The MAX941 shuts down when SHDN is low. When shut
down, the supply current drops to less than 60μA, and the
three-state output becomes high impedance. The SHDN
pin has a high input impedance. Connect SHDN to V+ for
normal operation. Exit shutdown with LATCH high; other-
wise, the output will be indeterminate.
Input Stage Circuitry
The MAX941/MAX942/MAX944 include internal protec-
tion circuitry that prevents damage to the precision input
stage from large differential input voltages. This protection
circuitry consists of two back-to-back diodes between IN+
and IN- as well as two 4.1kΩ resistors (Figure 3). The
diodes limit the differential voltage applied to the internal
circuitry of the comparators to be no more than 2VF,
where VF is the forward voltage drop of the diode (about
0.7V at +25°C).
For a large differential input voltage (exceeding 2VF), this
protection circuitry increases the input bias current at IN+
(source) and IN- (sink).
F
(IN IN ) 2V
Input Current 2 x 4.1k
+− − −
=
Ω
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 2VF, this input cur-
rent 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.
Figure 1. Input and Output Waveform, Noninverting Input
Varied
VTRIP+
VHYST
VTRIP-
COMPARATOR
OUTPUT
VOH
VOL
VTRIP+ + VTRIP-
2
VOS =
VIN- = 0V
VIN+
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
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Output Stage Circuitry
The MAX941/MAX942/MAX944 contain a current-driven
output stage as shown in Figure 4. During an output transi-
tion, ISOURCE or ISINK is pushed or pulled to the output pin.
The output source or sink current is high during the transi-
tion, 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 con-
serves 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 volt-
age 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 com-
parators’ 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 0.1μF ceramic capaci-
tor is a good choice) as close to V+ as possible.
3) Pay close attention to the decoupling capacitor’s band-
width, keeping leads short.
4) On the inputs and outputs, keep lead lengths short to
avoid unwanted parasitic feedback around the com-
parators.
5) Solder the device directly to the printed circuit board
instead of using a socket.
Figure 2. MAX941 Timing Diagram with Latch Operator
VOH
tLPW
OUT
tLPD
tPD
V+
0V
V+
0V
V+
2
V+
2
VOL
LATCH
DIFFERENTIAL
INPUT
VOLTAGE
VOS
tH
tS
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
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Figure 3. Input Stage Circuitry
Figure 5. 3.3V Digitally Controlled Threshold Detector
Figure 4. Output Stage Circuitry
Figure 6. Line Transceiver Application
MAX941
MAX942
MAX944
4.1kΩ
4.1kΩ
TO INTERNAL
CIRCUITRY
TO INTERNAL
CIRCUITRY
IN–
IN+
ISOURCE
ISINK
VCC
0
OUTPUT
MAX941
MAX942
MAX944
ANALOG IN
VSS
SERIAL
DIGITAL
INPUT
MAX512
VDD
SDI
DACOUTC
VDD = 3.3V
VREFC
8-BIT DAC
GND MAX941
0V
3V
CLEAN
DIGITAL
SIGNAL
10kΩ
20kΩ
20kΩ
V+ = 3V
COAX LINE
MAX941
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
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T = Tape and reel.
PART TEMP RANGE PIN-
PACKAGE
MAX942MSA/PR -55°C to +125°C 8 SO
MAX942CPA 0°C to +70°C 8 PDIP
MAX942CSA 0°C to +70°C 8 SO
MAX942EPA -40°C to +85°C 8 PDIP
MAX942ESA -40°C to +85°C 8 SO
MAX942EUA-T -40°C to +85°C 8 µMAX
MAX942AUA-T -40°C to +125°C 8 µMAX
MAX944CPD 0°C to +70°C 14 PDIP
MAX944CSD 0°C to +70°C 14 SO
MAX944EPD -40°C to +85°C 14 PDIP
MAX944ESD -40°C to +85°C 14 SO
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Chip Information
PROCESS: BIPOLAR
Ordering Information (continued)
PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO.
8 μMAX U8-1 21-0036 90-0092
8 PDIP P8-1 21-0043 —
8 SO S8-2 21-0041 90-0096
14 PDIP P14-3 21-0043 —
14 SO S14-1 21-0041 90-0112
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Package Information
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
8 12/08 Added SO package diagram and removed transistor count 10
9 3/09 Corrected Ordering Information for MAX944ESD 10
10 9/14 Corrected Electrical Characteristics and removed automotive reference from Features 1, 3
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
© 2014 Maxim Integrated Products, Inc.
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Revision History
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
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Maxim Integrated:
MAX941CSA+ MAX941ESA+ MAX942CPA+ MAX942CSA+ MAX942EPA+ MAX942ESA+ MAX942EUA+
MAX944CSD+ MAX944ESD+ MAX941CPA MAX941CPA+ MAX941CSA MAX941CSA+T MAX941EPA+
MAX941ESA+T MAX941EUA MAX941EUA+ MAX941EUA+T MAX941EUA-T MAX942AUA+ MAX942AUA+T
MAX942CSA MAX942CSA+T MAX942MSA/PR MAX942MSA/PR-T MAX942CUA+ MAX942CUA+T MAX942ESA
MAX942ESA+T MAX942ESA-T MAX942EUA+T MAX944CPD+ MAX944CSD MAX944CSD+T MAX944EPD+
MAX944ESD+T MAX941CSA-T MAX941ESA MAX941ESA-T MAX942CSA-T MAX942EPA MAX944CPD
MAX944CSD-T MAX944EPD MAX944ESD MAX944ESD-T