ADCMP391ARZ - Analog Devices Inc.

Manufacturer Part Number

ADCMP391ARZ

Manufacturer

Analog Devices

Introduction

The ADCMP391ARZ is a high-precision, low-power linear comparator designed for a wide range of applications, featuring rail-to-rail output and a single comparator element.

Product Features and Performance

General-purpose comparator

Single comparator element design

Rail-to-rail output for enhanced compatibility with modern microcontrollers and DACs

Low supply voltage range from 2.3V to 5.5V, suitable for battery-operated applications

Low input offset voltage of 2.5mV maximizes accuracy

Very low input bias current of 0.03µA, minimizing error in high impedance sensing applications

Exceptional common-mode rejection ratio (CMRR) of 74dB and power supply rejection ratio (PSRR) of 80dB for stable operation under fluctuating supply voltages

Maximum propagation delay of 4.2µs for responsive performance in time-critical applications

Built-in 4mV hysteresis for noise immunity and stable switching

Operates over a wide temperature range from -40°C to 125°C, ensuring reliability in extreme environments

Product Advantages

High accuracy and stability for precision applications

Low power consumption suitable for portable devices

High noise immunity and stable operation in electrically noisy environments

Key Technical Parameters

Voltage - Supply, Single/Dual (±): 2.3V ~ 5.5V

Voltage - Input Offset (Max): 2.5mV

Current - Input Bias (Max): 0.03µA

Current - Quiescent (Max): 24.7µA

CMRR, PSRR (Typ): 74dB CMRR, 80dB PSRR

Propagation Delay (Max): 4.2µs

Hysteresis: 4mV

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Robust design ensures high reliability and longevity in harsh conditions

Compatibility

Rail-to-rail output ensures compatibility with a wide range of microcontrollers and digital interfaces

8-SOIC package compatible with common PCB design and assembly processes

Application Areas

Precision measurement systems

Battery-powered devices

Industrial sensors and controllers

Automotive systems

Portable medical devices

Product Lifecycle

Active product status indicates ongoing manufacture and availability

Not reported to be nearing discontinuation, ensuring future availability for new designs

Several Key Reasons to Choose This Product

High precision and low power consumption make it ideal for battery-operated precision devices

Broad operating voltage and temperature range offer versatility across different applications and conditions

The compact 8-SOIC package facilitates easy integration into various circuit designs

Excellent noise immunity enhances the reliability of measurement and control systems

Analog Devices' reputation for quality and reliability