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  2. Analog Functions
  3. Comparators
  4. Comparators with Integrated Reference
  5. MAX9646


Features and Benefits

  • Tiny, 1mm x 1mm x 0.6mm 4-Bump UCSP
    • Footprint = Two 0402 Resistors
    • Also Available in a 5-Pin SOT23 Package
  • Ultra-Low Operating Current (700nA max)
  • -0.3V to +5.5V Input Voltage Range
  • Internal 0.2V Reference Trimmed to 1% Accuracy
  • 15µs Propagation Delay
  • -40°C to +85°C Extended Temperature Range

Product Details

The MAX9644/MAX9645/MAX9646 are small, single comparators, ideal for a wide variety of portable electronics applications such as cell phones, media players, and notebooks that have extremely tight board space and power constraints. These comparators are offered in both a miniature 4-bump UCSP™ package with a 1mm x 1mm footprint (as small as two 0402 resistors) and a 5-pin SOT23 package.

The ICs feature an input voltage range of -0.3V to +5.5V, independent of supply voltage. These devices maintain high impedance at the inputs even when powered down (VCC or VREF = 0V). They also feature internal filtering to provide high RF immunity.

The ICs have an internal 0.2V reference. These devices feature either a push-pull or an open-drain output. They consume only 700nA (max) supply current and operate down to VCC = 1V over the extended -40°C to +85°C temperature range.


  • Cell Phones
  • Electronic Toys
  • Notebook Computers
  • Portable Media Players
  • Portable Medical Devices

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.

Evaluation Kits (3)

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
MAX9646EBS+TG45 Material Declaration Reliability Data Wafer-Level Package 2x2 Bump, Full Array
MAX9646EUK+ Material Declaration Reliability Data Small-Outline Transistor Package
MAX9646EUK+T Material Declaration Reliability Data Small-Outline Transistor Package
Wafer Fabrication Data MAX9646 Reliability Data

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Sample & Buy

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Buy Now Pricing

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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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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.