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MAX9075, MAX9077
Low-Cost, Ultra-Small, 3µA Single-Supply Comparators


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 372kB)
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The MAX9075/MAX9077 single/dual comparators are optimized for 3V and 5V single-supply applications. These comparators have a 580ns propagation delay and consume just 3µA per comparator. The combination of low-power, single-supply operation down to 2.1V, and ultra-small footprint makes these devices ideal for all portable applications.

The MAX9075/MAX9077 have a common-mode input voltage range of -0.2V to VCC - 1.2V. Unlike many comparators, there is no differential clamp between the inputs, allowing the differential input voltage range to extend rail-to-rail. All inputs and outputs tolerate a continuous short-circuit fault condition to either rail.

The design of the output stage limits supply-current surges while switching (typical of many other comparators), minimizing power consumption under dynamic conditions. Large internal push-pull output drivers allow rail-to-rail output swing with loads up to 2mA, making these devices ideal for interface with TTL/CMOS logic.

The MAX9075 single comparator is available in 5-pin SC70 and SOT23 packages, while the MAX9077 dual comparator is available in 8-pin SOT23, µMAX®, and SO packages.

Key Features   Applications/Uses
  • 580ns Propagation Delay from Only 3µA
  • 2.1V to 5.5V Single-Supply Operation
  • Ground-Sensing Inputs
  • Rail-to-Rail Outputs
  • No Output Phase Inversion for Overdriven Inputs
  • No Differential Clamp Across Inputs
  • Available in Ultra-Small Packages
    • 5-Pin SC70 (MAX9075)
    • 8-Pin SOT23 (MAX9077)

 
  • Battery-Powered Systems
  • Digital-Line Receivers
  • IR Receivers
  • Keyless Entry
  • Threshold Detectors/Discriminators

Key Specifications:  Comparators
Part Number Comp-
arators
tPD
(ns)
VCMVR 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)
Price
typ to Neg. Rail min max max typ max max w/pins See Notes
MAX9075  1 580 Yes 2.1 5.5 5.2 1 8
CMOS
TTL
-40 to +85
SC70/5
SOT/5
5.3 $0.64 @1k
MAX9077  2
µMAX/8
SOIC(N)/8
SOT/8
9 $0.96 @1k
See All Comparators (83)

Diagram
MAX9075, MAX9077: Typical Operating Circuit
Typical Operating Circuit

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    Document Ref.: 19-1547; Rev 3; 2007-01-22
    This page last modified: 2007-06-05


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