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Single/Dual/Quad, SOT23, Single-Supply, High-Speed, Low-Power Comparators

Product Details

Key Features

Applications/Uses

Parametric specs for Comparators
tPD (ns) (typ) 20
VOS (mV) (max) 2
VSUPPLY (Total) (V) (min) 2.7
VSUPPLY (Total) (V) (max) 5.5
# Comparators 2
Input Range to Neg. Rail
ICC per Comp. (µA) (max) 650
Logic Out Push-Pull
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
$3.12 @1k
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Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for Comparators
tPD (ns) (typ) 20
VOS (mV) (max) 2
VSUPPLY (Total) (V) (min) 2.7
VSUPPLY (Total) (V) (max) 5.5
# Comparators 2
Input Range to Neg. Rail
ICC per Comp. (µA) (max) 650
Logic Out Push-Pull
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
$3.12 @1k

Key Features

  • Single-Supply Operation Down to 2.7V
  • 20ns Propagation Delay
  • 225µA Supply Current
  • 1nA Shutdown Supply Current
  • Rail-to-Rail Outputs
  • Ground-Sensing Inputs
  • Internal Hysteresis Ensures Clean Switching
  • Available in Space-Saving Packages
    • SOT23 (MAX998)
    • µMAX (MAX976)
    • QSOP (MAX978)

Applications/Uses

  • 3V Systems
  • Battery-Powered Applications
  • Digital-Line Receivers
  • IR Receivers
  • Threshold Detectors/Discriminators

Description

The MAX976/MAX978/MAX998 dual/quad/single, high-speed, low-power comparators are optimized for +3V/+5V single-supply applications. They achieve a 20ns propagation delay while consuming only 225µA supply current per comparator. The MAX998 features a low-power shutdown mode that places the output in a high-impedance state and reduces supply current to 1nA.

The MAX976/MAX978/MAX998 inputs have a common-mode voltage range that extends 200mV below ground. Their outputs are capable of rail-to-rail operation without external pullup circuitry, making these devices ideal for interface with CMOS/TTL logic. All inputs and outputs can tolerate a continuous short-circuit fault condition to either rail. The comparators' internal hysteresis ensures clean output switching, even with slow-moving input signals.

For space-critical applications, the single MAX998 is available in a 6-pin SOT23 package, the dual MAX976 is available in an 8-pin µMAX® package, and the quad MAX978 is available in a 16-pin QSOP package.

Simplified Block Diagram

MAX976, MAX978, MAX998: Typical Operating Circuit MAX976, MAX978, MAX998: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .