Overview
The ADCMP394ARZ is a single rail-to-rail input, low power comparator produced by Analog Devices Inc. This device is part of the ADCMP394/ADCMP395/ADCMP396 family, which includes single, dual, and quad comparators. The ADCMP394 is designed for general-purpose applications and is particularly suited for battery-powered systems due to its low voltage and low current operation. It operates from a supply voltage of 2.3 V to 5.5 V and consumes only 33.9 µA of supply current, making it highly efficient for power-sensitive designs.
Key Specifications
| Parameter | Min | Typical | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage Range (VCC) | 2.3 | - | 5.5 | V | - |
| Quiescent Current (ICC) | 33.9 | 47.9 | µA | All outputs in high-Z state, VOD = 0.1 V | |
| Common-Mode Input Voltage Range (VCMR) | -200 mV | - | VCC + 200 mV | - | - |
| Offset Voltage | - | 1 mV | - | - | Typical across the full common-mode range |
| Operating Temperature Range | -40°C | - | +125°C | - | - |
| Package Type | - | - | - | - | 8-lead, narrow body SOIC |
| UnderVoltage LockOut (UVLO) Threshold | 2.062 | 2.162 | 2.262 | V | - |
Key Features
- Rail-to-rail input capability, allowing the input signals to range from 200 mV beyond the supply rails.
- Low power consumption, with the single comparator drawing only 33.9 µA of supply current.
- Low offset voltage of 1 mV typical across the full common-mode range.
- Integrated 1 V ± 0.9% buffered reference voltage output, which can be used to set the comparator threshold.
- UnderVoltage LockOut (UVLO) monitor that ensures the comparator output is logic low if the supply voltage is below the UVLO threshold.
- Defined output state upon power-up, ensuring predictable behavior.
- Operating temperature range of -40°C to +125°C.
Applications
- Battery management and monitoring systems.
- Power supply detection and monitoring.
- Window comparators and threshold detectors/discriminators.
- Microprocessor systems requiring low power and precise voltage monitoring.
Q & A
- What is the supply voltage range of the ADCMP394?
The ADCMP394 operates from a supply voltage of 2.3 V to 5.5 V.
- How much current does the ADCMP394 consume?
The single ADCMP394 consumes only 33.9 µA of supply current.
- What is the common-mode input voltage range of the ADCMP394?
The common-mode input voltage range is -200 mV to VCC + 200 mV.
- What is the offset voltage of the ADCMP394?
The offset voltage is typically 1 mV across the full common-mode range.
- Does the ADCMP394 have an integrated reference voltage output?
Yes, it includes a 1 V ± 0.9% buffered reference voltage output.
- What is the operating temperature range of the ADCMP394?
The operating temperature range is -40°C to +125°C.
- What package types are available for the ADCMP394?
The ADCMP394 is available in an 8-lead, narrow body SOIC package.
- What is the UnderVoltage LockOut (UVLO) threshold of the ADCMP394?
The UVLO threshold ranges from 2.062 V to 2.262 V.
- What are some typical applications of the ADCMP394?
Typical applications include battery management, power supply detection, window comparators, and microprocessor systems.
- Is the ADCMP394 suitable for battery-powered systems?
Yes, it is highly suitable due to its low voltage and low current operation).
