Analog Devices Inc. ADCMP391 Single Comparator w/Known Power-Up State
Analog Devices Inc. ADCMP391 Single Comparator with Known Power-Up State is a single, rail-to-rail input, low-power comparator ideal for use in general-purpose applications. ADCMP391 operates from a single supply voltage of 2.3V to 5.5V and draws a minimal amount of current. Consuming only 18.6μA of supply current, ADCMP391 is ideal for battery-powered systems. It 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 enables a defined output state upon power-up. The comparator generates a logic low output if the supply voltage is less than the UVLO threshold. The ADCMP391 is available in an 8-lead, narrow body SOIC package and specified to operate over the extended temperature range of -40°C to +125°C.
Features
- 2.3V to 5.5V Single-supply voltage operation
- Rail-to-rail common-mode input voltage range
- Guarantees comparator output logic low from VCC = 0.9V to undervoltage lockout (UVLO)
- 1mV Typical low input offset voltage across VCMR
- -40°C to +125°C Operating temperature range
- 8-lead, narrow body SOIC
Applications
- Battery management/monitoring
- Power supply detection
- Window comparators
- Threshold detectors/discriminators
- Microprocessor systems
Functional Block Diagram
Publicerad: 2014-10-03
| Uppdaterad: 2022-03-11