1. Products
  2. Analog Functions
  3. Comparators
  4. Low Power Comparators
  5. ADCMP392


Features and Benefits

  • Single-supply voltage operation: 2.3 V to 5.5 V
  • Rail-to-rail common-mode input voltage range
  • Low input offset voltage across VCMR: 1 mV typical
  • Guarantees comparator output logic low from VCC = 0.9 V to undervoltage lockout (UVLO)
  • Operating temperature range: −40°C to +125°C
  • Package type: 8-lead, narrow body SOIC

Product Details

The ADCMP391 / ADCMP392 / ADCMP393 are single/dual/quad rail-to-rail input, low power comparators ideal for use in general-purpose applications. These comparators operate from a single supply voltage of 2.3 V to 5.5 V and draw a minimal amount of current. The single ADCMP391 consumes only 18.6 µA of supply current. The dual ADCMP392 and the quad ADCMP393 consumes 22.1 µA and 26.8 µA of supply current, respectively. The low voltage and low current operation of these devices makes it ideal for battery-powered systems.

The comparators features a common-mode input voltage range of 200 mV beyond rails, an offset voltage of 1 mV typical across the full common-mode range, and a UVLO monitor. In addition, the design of the comparators allows a defined output state upon power-up, a logic low output while the supply voltage is less than the UVLO threshold.

The ADCMP391 and ADCMP392 are available in 8-lead, narrow body SOIC package while the ADCMP393 is available in a 14-lead, narrow body SOIC package and a 14-lead TSSOP package. The comparators are specified to operate over the −40°C to +125°C extended temperature range.


  • Battery management/monitoring
  • Power supply detection
  • Window comparators
  • Threshold detectors/discriminators
  • Microprocessor systems

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.

Evaluation Kits (1)

Reference Designs (1)

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
ADCMP392ARZ Material Declaration Reliability Data 8-Lead SOIC
ADCMP392ARZ-RL7 Material Declaration Reliability Data 8-Lead SOIC
Wafer Fabrication Data

Sample & Buy

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Lead Times

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Evaluation Boards

Pricing displayed is based on 1-piece.

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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.