Overview
The ADCMP391ARZ, produced by Analog Devices Inc., is a single, rail-to-rail input, low power comparator designed for general-purpose applications. This device operates from a single supply voltage ranging from 2.3 V to 5.5 V and is optimized for low power consumption, drawing only 18.6 µA of supply current. Its low voltage and low current operation make it particularly suitable for battery-powered systems. The ADCMP391ARZ features a defined output state upon power-up, ensuring a logic low output if the supply voltage is below the undervoltage lockout (UVLO) threshold.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.3 V to 5.5 V | V |
| Supply Current | 18.6 µA | µA |
| Input Offset Voltage (VOS) | 1 mV (typical) | mV |
| Common-Mode Input Voltage Range | Rail-to-rail, 200 mV beyond rails | V |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 8-lead, narrow body SOIC | |
| Propagation Delay | 4.2 µs | µs |
| Output Type | Open-drain |
Key Features
- Single-supply voltage operation: 2.3 V to 5.5 V
- Rail-to-rail common-mode input voltage range with 200 mV beyond rails
- Low input offset voltage: 1 mV typical across the full common-mode range
- Low power consumption: 18.6 µA supply current
- Defined output state upon power-up: logic low output if supply voltage is below UVLO threshold
- Undervoltage lockout (UVLO) monitor
- Operating temperature range: −40°C to +125°C
- Available in 8-lead, narrow body SOIC package
Applications
- Battery management/monitoring
- Power supply detection
- Window comparators
- Threshold detectors/discriminators
- Microprocessor systems
Q & A
- What is the supply voltage range of the ADCMP391ARZ?
The ADCMP391ARZ operates from a single supply voltage ranging from 2.3 V to 5.5 V.
- How much current does the ADCMP391ARZ consume?
The ADCMP391ARZ consumes 18.6 µA of supply current.
- What is the typical input offset voltage of the ADCMP391ARZ?
The typical input offset voltage is 1 mV across the full common-mode range.
- What is the common-mode input voltage range of the ADCMP391ARZ?
The common-mode input voltage range is rail-to-rail with 200 mV beyond rails.
- What is the operating temperature range of the ADCMP391ARZ?
The operating temperature range is −40°C to +125°C.
- In what package is the ADCMP391ARZ available?
The ADCMP391ARZ is available in an 8-lead, narrow body SOIC package.
- What is the propagation delay of the ADCMP391ARZ?
The propagation delay is 4.2 µs.
- What type of output does the ADCMP391ARZ have?
The ADCMP391ARZ has an open-drain output.
- What is the undervoltage lockout (UVLO) feature of the ADCMP391ARZ?
The UVLO feature ensures a logic low output if the supply voltage is below the UVLO threshold.
- What are some typical applications of the ADCMP391ARZ?
Typical applications include battery management/monitoring, power supply detection, window comparators, threshold detectors/discriminators, and microprocessor systems.
