MAX991EUA+ - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX991EUA+

Manufacturer

Analog Devices

Introduction

The MAX991EUA+ is a high-performance linear comparator from Analog Devices, designed for precision applications requiring low power and fast response times.

Product Features and Performance

Dual comparator elements

CMOS, Push-Pull, Rail-to-Rail, TTL output type for flexible interfacing

Supports both single and dual supply operations ranging from 2.5V to 5.5V and ±1.25V to ±2.75V

Highly accurate with a maximum input offset voltage of 5mV at 5.5V

Ultra-low input bias current of 1pA at 5.5V, minimizing influence on the input signal

CMRR and PSRR both rated at 80dB, ensuring stability against power supply and common-mode noise

Propagation delay maximum of 210ns for fast response

Includes hysteresis of ±2.5mV to reduce output chatter and false triggering

Product Advantages

Ultra-low power consumption with a maximum quiescent current of 96µA, ideal for power-sensitive applications

Enhanced accuracy and noise immunity make it suitable for high-precision applications

Key Technical Parameters

Voltage Supply: 2.5V ~ 5.5V, ±1.25V ~ 2.75V

Input Offset Voltage: Max 5mV @ 5.5V

Input Bias Current: Max 1pA @ 5.5V

Quiescent Current: Max 96µA

CMRR, PSRR: 80dB each

Propagation Delay: Max 210ns

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Robust operating temperature range from -40°C to 85°C suitable for industrial environments

Compatibility

Output compatible with CMOS, TTL logic levels; flexible for use in various digital systems

Suitable for dual and single power supply operations

Application Areas

Industrial control systems

Precision rectifiers

Zero-crossing detectors

Window comparators

Product Lifecycle

Currently active and in production

Not nearing discontinuation, with ongoing support for replacements and upgrades

Several Key Reasons to Choose This Product

Dual element design increases system reliability and flexibility

Low power consumption and high precision increase suitability for battery-operated and critical accuracy-required applications

Wide operating temperature range ensures performance stability in diverse environmental conditions

Fast propagation delay supports applications requiring quick response times