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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 Package/Pins Smallest Available Pckg.
    (mm2)
    Oper. Temp.
    (°C)
    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
    SC70/5
    SOT/5
    5 -40 to +85 $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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