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MAX961, MAX962, MAX963, MAX964, MAX997, MAX999

Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators

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Status Explanations for product status codes

Part Number Status
MAX961 Active: In Production.
MAX962 Active: In Production.
MAX963 Active: In Production.
MAX964 Active: In Production. See Ordering Information for details.
MAX997 Active: In Production.
MAX999 Active: In Production.


The MAX961–MAX964/MAX997/MAX999 are low-power, ultra-high-speed comparators with internal hysteresis. These devices are optimized for single +3V or +5V operation. The input common-mode range extends 100mV Beyond-the-Rails™, and the outputs can sink or source 4mA to within 0.52V of GND and VCC. Propagation delay is 4.5ns (5mV overdrive), while supply current is 5mA per comparator.

The MAX961/MAX963/MAX964 and MAX997 have a shutdown mode in which they consume only 270µA supply current per comparator. The MAX961/MAX963 provide complementary outputs and a latch-enable feature. Latch enable allows the user to hold a valid comparator output. The MAX999 is available in a tiny SOT23-5 package. The single MAX961/MAX997 and dual MAX962 are available in space-saving 8-pin µMAX® packages.

Data Sheet

Download this datasheet in PDF formatDownload Rev 6 (PDF, 556.4kB)
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Key Features

  • Ultra-Fast, 4.5ns Propagation Delay
  • Ideal for +3V and +5V Single-Supply Applications
  • Beyond-the-Rails Input Voltage Range
  • Low, 5mA Supply Current (MAX997/MAX999)
  • 3.5mV Internal Hysteresis for Clean Switching
  • Output Latch (MAX961/MAX963)
  • TTL/CMOS-Compatible Outputs
  • Shutdown Mode (MAX961/MAX963/MAX964/MAX997)
  • Available in Space-Saving Packages:
    • 5-Pin SOT23 (MAX999)
    • 8-Pin µMAX (MAX961/MAX962/MAX997)
    • 16-Pin QSOP (MAX964)


  • GPS Receivers
  • High-Speed Sampling Circuits
  • Line Receivers
  • Portable Battery-Powered Systems
  • Single 3V/5V Systems
  • Threshold Detectors/Discriminators
  • Zero-Crossing Detectors

Key Specifications:

Part Number Comp-
Input Range VSUPPLY (Total)
ICC per Comp.
Logic Out Oper. Temp.
typ min max max typ max See Notes
MAX961  1 4.5
Rail to Rail
to Neg. Rail
2.7 5.5 11000 0.5 1.5 Push-Pull -40 to +85 $2.46 @1k
MAX962  2 8000 $3.60 @1k
MAX963  2 11000 $4.28 @1k
MAX964  4 8000 $4.22 @1k
MAX997  1 6500 $2.33 @1k
MAX999  1 6500 $2.33 @1k
See All Comparators (84)

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX999: Pin Configuration
Pin Configuration

MAX961, MAX962, MAX963, MAX964, MAX997: Pin Configuration
Pin Configuration

More Information

Topmark Coding MAX999

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Document Ref.: 19-1129 Rev 6; 2008-03-24
This page last modified: 2012-12-07