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 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 pull-up 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 pack-
ages.
____________________________Features
o
Available in µMAX 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)
350µA 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
0°C to +70°C
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
-55°C to +125°C
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 µMAX
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 T
A
= +25°C, DC parameters only.
__________________________________________________________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 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.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
