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MAX9634TEUK+T

ADIMAX9634TEUK+T

Analog Devices Inc./Maxim Integrated
Current Sense Amplifier 1 Circuit SOT-23-5
Active6,983 in stock
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Overview

The MAX9634TEUK+T is an ultra-low-power, high-side current-sense amplifier designed for monitoring electrical current in battery-powered systems. It features a remarkably low supply current of 1.1uA and operates across a wide input common-mode range of 1.6V to 28V. This device is specifically engineered to minimize power drain while maintaining a high input offset voltage accuracy of 100uV.

Why Choose This Part

The primary advantage is its extremely low 1.1uA supply current, which is significantly lower than standard current-sense amplifiers. It offers a 125 kHz bandwidth and high precision with a low 100uV offset voltage, all within a compact SOT-23-5 package.

Applications

Battery-Powered Handheld Equipment
Ideal for smartphones and tablets where minimizing standby current is critical for long battery life.
Power Management Systems
Used in notebook computers and portable medical devices to monitor charging and discharging cycles.
Precision Current Monitoring
Suitable for low-side or high-side sensing in systems requiring a 0.5 percent accuracy rating.

Key Specifications

Mounting Type Surface Mount
Amplifier Type Current Sense
Package / Case SC-74A, SOT-753
Current - Supply 1.1uA
Number of Circuits 1
Operating Temperature -40degC ~ 85degC
Gain Bandwidth Product 125 kHz
Voltage - Input Offset 100 uV
Supplier Device Package SOT-23-5

Getting Started

To evaluate this part, design a PCB with a low-resistance shunt resistor (Kelvin connection recommended) and decouple the supply pin with a 0.1uF capacitor. Ensure the common-mode voltage stays within the 1.6V to 28V range to maintain specified accuracy.

Also Consider

INA219 TITexas Instruments - Offers an I2C digital interface for direct current, voltage, and power readings if an analog output is not desired.