MAX991EKA+T - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX991EKA+T

Manufacturer

analog-devices

Introduction

The MAX991 is a general-purpose, dual comparator with rail-to-rail input and output stages. It operates from a single 2.5V to 5.5V supply or dual ±1.25V to ±2.75V supplies. The MAX991 features very low input offset voltage, low input bias current, and high common-mode rejection ratio (CMRR) and power-supply rejection ratio (PSRR). These features make the MAX991 ideal for use in battery-powered and other low-power applications.

Product Features and Performance

Dual comparator with rail-to-rail input and output stages

Operates from a single 2.5V to 5.5V supply or dual ±1.25V to ±2.75V supplies

Very low input offset voltage (5mV max at 5.5V)

Low input bias current (1pA max at 5.5V)

High CMRR (80dB) and PSRR (80dB)

Fast propagation delay (210ns max)

Adjustable hysteresis (±2.5mV)

Wide operating temperature range (-40°C to +85°C)

Product Advantages

Ideal for low-power applications with its low quiescent current (96μA max)

Flexible power supply options (single or dual supply)

Precise switching with low offset voltage and adjustable hysteresis

Robust design with high CMRR and PSRR

Key Reasons to Choose This Product

Excellent performance for a wide range of comparator applications

Compact and power-efficient design for space-constrained and battery-powered systems

Reliable and durable operation across a wide temperature range

Ease of integration with a variety of microcontrollers and digital logic circuits

Quality and Safety Features

Manufactured to high-quality standards by a leading semiconductor company

Robust design and extensive testing ensure reliable performance and long-term stability

Complies with relevant safety and environmental regulations

Compatibility

The MAX991 is a general-purpose comparator that can be used in a wide range of electronic designs, including:

Microcontroller-based systems

Battery-powered devices

Industrial automation and control systems

Instrumentation and measurement equipment

Application Areas

Voltage monitoring and detection

Zero-crossing detection

Overcurrent and overvoltage protection

Limit switching

Battery chargers and power supplies

Product Lifecycle

The MAX991 is an active and widely-used product in the analog-devices portfolio. There are no immediate plans for discontinuation, and the device continues to be in high demand. While there are no direct equivalent models, analog-devices offers a range of similar comparator products that may be suitable alternatives, depending on your specific requirements. We recommend contacting our website's sales team for more information on available options and to discuss the best solution for your application.