MAX941/MAX942/
MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail,
Single-Supply Comparators
General Description
Features
● Available in μMAX Package
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.
● 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
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.
● Internal Hysteresis for Clean Switching
● Outputs Swing 200mV of Power Rails
● CMOS/TTL-Compatible Outputs
● Output Latch (MAX941 Only)
● Shutdown Function (MAX941 Only)
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.
Ordering Information
PIN-
PART
TEMP RANGE
PACKAGE
8 PDIP
8 SO
MAX941CPA
MAX941CSA
MAX941EPA
0°C to +70°C
0°C to +70°C
Applications
● 3V/5V Systems
● Battery-Powered Systems
● Threshold Detectors/Discriminators
● Line Receivers
● Zero-Crossing Detectors
● Sampling Circuits
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
8 PDIP
8 SO
MAX941ESA
MAX941EUA-T
MAX941AUA-T
T = Tape and reel.
8 µMAX
8 µMAX
Ordering Information continued at end of data sheet.
μMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations
TOP VIEW
MAX941
MAX942
OUTA
INA-
OUTD
IND-
1
2
3
4
5
6
7
14
13
12
11
10
9
+
+
1
2
3
4
1
2
3
4
8
7
6
5
8
7
6
5
V
OUTA
INA-
+
V
A
B
D
C
N.C.
OUT
GND
+
+
INA
IND
IN
OUTB
INB-
+
MAX944
A
V
GND
+
IN-
INA
+
+
INB
B
INC
+
INB
LATCH
SHDN
GND
INB-
INC-
PDIP/SO/µMAX
PDIP/SO/µMAX
OUTB
OUTC
8
PDIP/SO
19-0229; Rev 10; 9/14