ADCMP394:  Single Comparator with Accurate Reference Output

Product Details

Product Status:Recommended for New Designs

The ADCMP394 is a single rail-to-rail input low power comparators ideal for use in general-purpose applications. The devices operate from a supply voltage of 2.3V up to 5.5V and draws minimal amount of current. The single ADCMP394 consumes only 36uA of supply current. The low voltage and low current operation of the ADCMP394 makes it ideal for battery-powered systems.

The comparators feature a common-mode input voltage range of 200mV beyond rails, an offset voltage of 1mV typical across the full common-mode range, and an undervoltage lockout (UVLO) monitor. In addition, the design of the comparators allows a defined output state upon power-up. The comparators generate a logic low output while the supply voltage is still below the UVLO threshold.

The comparators incorporate a 1V ±0.8% buffered reference voltage. The reference voltage output can directly connect to the comparator input to serve as the trip value for precise monitoring and detection of positive voltage. It can also act as an offset when monitoring negative voltage.

The ADCMP394 is available in an 8-pin Narrow Body SOIC package. The ADCMP394 is specified to operate over the extended temperature range of -40°C to +125°C.


  • Battery Management/Monitoring
  • Power Supply Detection
  • Window Comparator
  • Threshold Detectors/Discriminators
  • Microprocessor Systems


  • High accuracy reference output voltage: 1 V±0.8%
  • Single supply voltage operation: 2.3V to 5.5V
  • Rail-to-rail, common-mode input voltage range
  • Low input offset voltage, VOFFSET: 1mV Typical
  • Guarantees comparator output logic low from 0.9V VCC to UVLO
  • Operating temperature range:
    -40°C to +125°C
  • Package type:
    8-Narrow Body SOIC

Sample Requests

For device and evaluation board sample requests, please contact your local ADI sales representative.

Evaluation Kits & Symbols & Footprints

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Price, packaging, availability

ADCMP394 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADCMP394ARZ Status: Production SOIC 150 MIL 8 Ind Tube, 98 - - Y  Material Info Notify Me Purchase
ADCMP394ARZ-RL7 Status: Production SOIC 150 MIL 8 Ind Reel, 1000 - $0.37 Y  Material Info Notify Me Purchase
Price Table Help

The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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