ADIMAX9634FEUK+T
Overview
The MAX9634FEUK+T is an ultra-low-power, high-side current-sense amplifier designed for precision monitoring in space-constrained applications. It operates with a supply current of just 1.1uA and supports a wide input common-mode range from 1.6V to 28V, making it ideal for battery-powered systems. This specific variant features a fixed gain of 50V/V in a compact 5-pin SOT23 package.
Why Choose This Part
The primary advantage is the industry-leading 1.1uA supply current, which minimizes the impact on the system's total power budget. It offers high precision with a 100uV maximum input offset voltage and a low 0.5% gain error. The wide 28V common-mode range allows for flexible placement on high-voltage rails without needing a separate supply voltage for the IC.
Applications
Key Specifications
Getting Started
To evaluate this part, use the MAX9634EVKIT, which provides a pre-assembled PCB to test various gain options and load conditions. When designing your PCB, place a 0.1uF ceramic bypass capacitor close to the supply pin and use Kelvin sensing connections across the shunt resistor to maintain measurement accuracy. Ensure the shunt resistor value is chosen so the maximum differential voltage does not exceed the output swing limits at your target gain.
