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MAX9140, MAX9141, MAX9142, MAX9144
40ns, Low-Power, 3V/5V, Rail-to-Rail Single-Supply Comparators
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Status
Active: In Production.
Description
The MAX9140/MAX9141 are single and the MAX9142/MAX9144 are dual/quad high-speed comparators optimized for systems powered from a 3V or 5V supply. The MAX9141 features latch enable and device shutdown. These devices combine high speed, low power, and rail-to-rail inputs. Propagation delay is 40ns, while supply current is only 150µA per comparator.
The input common-mode range of the MAX9140/MAX9141/MAX9142/MAX9144 extends beyond both power-supply rails. The outputs pull to within 0.3V 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 MAX9140/MAX9141/MAX9142/MAX9144 are higher-speed, lower-power, and lower-cost upgrades to industry-standard comparators MAX941/MAX942/MAX944.
The MAX9140 are offered in tiny 5-pin SC70 and SOT23 packages. The MAX9141 and MAX9142 are available in 8-pin SOT23 and SO packages, while the MAX9144 is available in both 14-pin SO and TSSOP packages.
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Data Sheet
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Key Features
- Fast, 40ns Propagation Delay (10mV Overdrive)
- Low Power
- 150µA Supply Current Per Comparator (3V)
- Optimized for 3V and 5V Applications
- Rail-to-Rail Input Voltage Range
- Low, 500µV Offset Voltage
- Internal Hysteresis for Clean Switching
- Outputs Swing 300mV of Power Rails
- CMOS/TTL-Compatible Outputs
- Output Latch (MAX9141 Only)
- Shutdown Function (MAX9141 Only)
- Available in SC70 and SOT23 Packages
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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 |
| MAX9140 |
1 |
40 |
|
2.7 |
5.5 |
300 |
0.5 |
2 |
Push-Pull |
-40 to +85 |
|
9 |
$0.76 @1k |
| MAX9141 |
1 |
320 |
|
9 |
$0.67 @1k |
| MAX9142 |
2 |
300 |
|
9 |
$0.93 @1k |
| MAX9144 |
4 |
300 |
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33.4 |
$1.44 @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 Configurations
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-2064
Rev 3;
2010-02-26
This page last modified: 2010-02-26
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