19-0229; Rev 8; 11/08
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 pow-
ered 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 fea-
tures 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.
____________________________Features
♦
Available in
µMAX
Package
for Automotive Applications
♦
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)
MAX941/MAX942/MAX944
Ordering Information
PART
TEMP RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
PIN-
PACKAGE
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
8 µMAX
8 µMAX
________________________Applications
3V/5V Systems
Battery-Powered Systems
Threshold Detectors/Discriminators
Line Receivers
Zero-Crossing Detectors
Sampling Circuits
MAX941CPA
MAX941CSA
MAX941EPA
MAX941ESA
MAX941EUA-T
MAX941AUA-T
Ordering Information continued at end of data sheet.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations
TOP VIEW
MAX941
V+
IN+
1
2
8
7
6
5
N.C.
OUT
GND
LATCH
OUTA
INA-
1
2
MAX942
8
V+
OUTB
INB-
INB+
OUTA
1
INA-
2
INA+
3
V+
4
INB+
5
INB-
6
OUTB
7
14
OUTD
A
D
13
IND-
12
IND+
11
GND
A
B
DIP/SO/μMAX
7
6
5
IN-
3
SHDN
4
INA+
3
GND
4
MAX944
B
C
10
INC+
9
8
INC-
OUTC
DIP/SO/μMAX
DIP/SO
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
