TIINA199B3DCKR
Overview
The INA199B3DCKR is a voltage-output, current-shunt monitor designed for bidirectional current sensing across a wide common-mode range of -0.3V to 26V. This zero-drift amplifier features a fixed gain of 100V/V and is housed in a compact SC-70 package, making it ideal for space-constrained power management circuits. It provides high-accuracy current measurements with a maximum supply current of only 0.1mA.
Why Choose This Part
The zero-drift architecture enables high-precision sensing with low offset, ensuring 1 percent accuracy across the full temperature range of -40C to 125C. Its low quiescent current of 100uA makes it suitable for battery-operated devices, while the bidirectional sensing capability allows for monitoring both charging and discharging paths with a single IC.
Applications
Key Specifications
Getting Started
To evaluate this part, use a shunt resistor sized for your maximum expected current to keep the differential input voltage within the linear range. Ensure the REF pin is driven by a low-impedance source to establish the output offset voltage for bidirectional sensing. Prototyping is best achieved using the INA199EVM evaluation module which provides a pre-populated SC-70 footprint and test points.
