Analog Devices Inc. ADCMP393 Quad Comparator

Analog Devices Inc. ADCMP393 Quad Comparator is a rail-to-rail input, low power comparator that operates from a single supply voltage of 2.3V to 5.5V and draws a minimal amount of current. The quad ADCMP393 consumes only 26.8μA of supply current. ADCMP393 features a common-mode input voltage range of 200mV beyond rails, an offset voltage of 1mV typical across the full common-mode range, and a UVLO monitor.

In addition, the design of the comparator allows a defined output state upon power-up. The comparator generates a logic low output while the supply voltage is less than the UVLO threshold. The low voltage and low current operation of the ADCMP393 makes it ideal for battery-powered systems.


  • 2.3V to 5.5V Single supply voltage range
  • Rail-to-rail, common-mode input voltage range
  • 1mV typical Low input offset voltage, VOFFSET
  • Guarantees comparator output logic low from VCC=0.9V to undervoltage lockout (UVLO)
  • -40°C to +125°C Operating temperature range
  • 14-lead standard small outline package (SOIC)


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

Functional Block Diagram

Block Diagram - Analog Devices Inc. ADCMP393 Quad Comparator
Publicado: 2014-11-13 | Actualizado: 2022-03-11