1. Products
  2. Analog Functions
  3. Comparators
  4. High Speed Comparators (<100ns Propagation Delay)
  5. MAX978


Features and Benefits

  • 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)

Product Details

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.


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

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX978EEE+ Material Declaration Reliability Data 16-QSOP-150_MIL
MAX978EEE+T Material Declaration Reliability Data 16-QSOP-150_MIL
MAX978ESE+ Material Declaration Reliability Data 16-SOIC_N-150_MIL
MAX978ESE+T Material Declaration Reliability Data 16-SOIC_N-150_MIL
Wafer Fabrication Data MAX978 Reliability Data

Sample & Buy

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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