TIINA211BIDCKR
Overview
The INA211BIDCKR is a high-accuracy, zero-drift current-shunt monitor designed for low-side or high-side current sensing. This voltage-output amplifier can sense drops across shunts at common-mode voltages from -0.3V to 26V, independent of the supply voltage. It is particularly effective for high-precision measurements in power-constrained designs due to its low 65uA typical supply current.
Why Choose This Part
The zero-drift architecture provides high accuracy with an offset voltage that remains stable over the full -40C to 125C operating temperature range. Its extremely low quiescent current and small SC70 footprint make it ideal for portable, battery-operated devices where PCB real estate is at a premium.
Applications
Key Specifications
Getting Started
To evaluate this part, use a shunt resistor sized for your expected current range to ensure the differential input voltage stays within the linear range. For prototyping, TI offers the INA211EVM evaluation module which simplifies connection to external power and loads. Ensure decoupling capacitors are placed close to the V+ pin to minimize noise in high-precision measurements.
INA211B Family
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