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MAX941, MAX942, MAX944
High-Speed, Low-Power, 3V/5V, Rail-to-Rail, Single-Supply Comparators
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Status
Active: In Production.
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.
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Data Sheet
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Key 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)
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Applications/Uses
- 3V/5V Systems
- Battery-Powered Systems
- Line Receivers
- Sampling Circuits
- Threshold Detectors/Discriminators
- Zero-Crossing Detectors
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Key Specifications:
| Comparators |
| Part Number |
Comp-
arators |
tPD
(ns) |
Input Range |
VSUPPLY (Total)
(V) |
VSUPPLY (Total)
(V) |
ICC per Comp.
(µA) |
VOS
(mV) |
VOS
(mV) |
Logic Out |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| typ |
min |
max |
max |
typ |
max |
max w/pins |
See Notes |
| MAX941 |
1 |
80 |
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2.7 |
5.5 |
600 |
1 |
4 |
Push-Pull |
| -55 to +125 | | -40 to +85 | | 0 to +70 |
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15.6 |
$1.53 @1k |
| MAX942 |
2 |
500 |
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15.6 |
$1.64 @1k |
| MAX944 |
4 |
500 |
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54.2 |
$2.72 @1k |
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See All Comparators (80)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Pin Configuration
Notes and Comments
Low power, 3V or 5V single supply, rail-to-rail inputs (5uA SHDN)
(MAX941)
Dual MAX941 (MAX942)
Quad MAX941 (MAX944)
More Information
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Information Index
Document Ref.: 19-0229
Rev 9;
2009-12-22
This page last modified: 2009-12-22
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