MAX4373FESA - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX4373FESA

Manufacturer

Maxim Integrated

Introduction

The MAX4373FESA is a high-precision, high-side current-sense amplifier designed for use in high-power, current-sensing applications.

Product Features and Performance

High-side current sensing

Wide common-mode input voltage range of 0V to 100V

Very low input offset voltage of 50μV (max)

Low noise of 7μVrms

High CMRR of 100dB (min)

Fast response time of 4μs (typ)

Single-supply operation from 4.5V to 36V

Product Advantages

Precise current monitoring for power management and protection

Wide dynamic range for high-power applications

Excellent noise performance for accurate current sensing

Robust high-side operation for safety and reliability

Key Technical Parameters

Input Offset Voltage: 50μV (max)

Input Bias Current: ±200nA (max)

Bandwidth: 700kHz (typ)

Gain Error: ±0.1% (max)

Common-Mode Rejection Ratio: 100dB (min)

Supply Voltage Range: 4.5V to 36V

Quality and Safety Features

RoHS non-compliant

8-SOIC package for surface mount applications

Operates over the -40°C to +125°C temperature range

Compatibility

This device is compatible with a wide range of power management and protection applications.

Application Areas

Current sensing in power supplies, motor drives, and industrial equipment

Overcurrent protection for high-power circuits

Battery management systems

Telecommunications equipment

Product Lifecycle

The MAX4373FESA is an active product and is not nearing discontinuation. Replacement or upgrade options may be available from Maxim Integrated.

Key Reasons to Choose This Product

Highly precise current sensing with low offset voltage and noise

Wide common-mode input voltage range for high-power applications

Fast response time for quick overcurrent detection and protection

Single-supply operation and small 8-SOIC package for compact designs

Robust high-side operation and wide temperature range for reliability