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

Please check latest availability status for a specific part variant.


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.
MAX999: Pin Configuration MAX999: Pin Configuration Enlarge+

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
Part NumberComp-
Input RangeVSUPPLY (Total)
ICC per Comp.
Logic OutOper. Temp.
typminmaxmaxtypmaxSee Notes
MAX961 14.5
Rail to Rail
to Neg. Rail
2.75.5110000.51.5Push-Pull-40 to +85
SOIC (N)/8
$2.58 @1k
MAX962 28000
SOIC (N)/8
$3.96 @1k
MAX963 211000
SOIC (N)/14
$4.49 @1k
MAX964 48000
SOIC (N)/16
$4.43 @1k
MAX997 16500
SOIC (N)/8
$2.45 @1k
MAX999 16500
$2.45 @1k
See All Comparators (95)
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.

Technical Documents

App Note 4061 Measuring the Output Jitter of the MAX999 Comparator

Quality and Environmental Data

Product Reliability Reports: MAX999.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >


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