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  2. Analog Functions
  3. Comparators
  4. MAX9031


Features and Benefits

  • Low-Cost Solution Available in Space-Saving SC70 Packages (MAX9030/MAX9031)
  • +2.5 to +5.5V Single-Supply Voltage Range
  • Comparator Output Swings Rail-to-Rail
  • Internal 4mV Comparator Hysteresis
  • 188ns Propagation Delay
  • Low 35µA Supply Current
  • No Phase Reversal for Overdriven Inputs
  • Space-Saving Packages
    • 5-Pin SC70 (MAX9031)
    • 6-Pin SC70 (MAX9030)
    • 8-Pin SOT23 (MAX9032)
    • 14-Pin TSSOP (MAX9034)

Product Details

The MAX9030/MAX9031/MAX9032/MAX9034 single/dual/quad comparators are optimized for single-supply applications from +2.5V to +5.5V but can also be operated from dual supplies. These comparators have a 188ns propagation delay and consume 35µA of supply current per comparator over the -40°C to +125°C operating temperature range. The combination of low-power, single-supply operation down to +2.5V, and ultra-small footprint makes these devices ideal for portable applications.

The MAX9030 is a low-cost single comparator with shutdown. The MAX9031, MAX9032, and MAX9034 are low-cost single, dual, and quad comparators without shutdown, respectively. The comparators' 4mV of built-in hysteresis provides noise immunity and prevents oscillations even with a slow-moving input signal. The input common-mode range extends from the negative supply to within 1.1V of the positive supply. The design of the comparator output stage substantially reduces switching current during output transitions, virtually eliminating power-supply glitches.

The MAX9030 single comparator with shutdown is available in the space-saving 6-pin SC70 and SOT23 packages. The MAX9031 single comparator is available in tiny 5-pin SC70 and SOT23 packages. The MAX9032 dual comparator is available in 8-pin SOT23 and µMAX® packages, and the MAX9034 quad comparator is available in a 14-pin TSSOP package.


  • Battery-Powered Portable Systems
  • Digital Line Receivers
  • Keyless Entry Systems
  • Mobile Communications
  • Photodiode Preamps
  • Sensor Signal Detection
  • Threshold Detectors/Discriminators

Product Categories

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

SPICE Models

Product Recommendations

MAX9031 Companion Parts

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
MAX9031AUK+ Material Declaration Reliability Data 5-SOT_23-N/A
MAX9031AUK+T Material Declaration Reliability Data 5-SOT_23-N/A
MAX9031AXK+ Material Declaration Reliability Data 5-SC70-N/A
MAX9031AXK+T Material Declaration Reliability Data 5-SC70-N/A
Wafer Fabrication Data MAX9031 Reliability Data

Sample & Buy

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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

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