Bi-directional zero-drift current-shunt monitor and development module

A voltage-output, current-sensing amplifier integrates an internal shunt resistor, the Texas Instruments (TI) INA250 bi-directional zero-drift current-shunt monitor is now available from Mouser stock. The device enables high-accuracy current measurements at common-mode voltages that can vary from 0V to 36V, independent of the supply voltage. The bi-directional low- or high-side current-shunt monitor allows an external reference to be used to measure current flowing in both directions through the internal current-sensing resistor sensor. The integration of the precision current-sensing resistor provides calibration equivalent measurement accuracy with ultra-low temperature drift performance. It also ensures an optimized Kelvin layout for the sensing resistor is always obtained. The TI INA250A2EVM evaluation module is also available. Typical applications include test equipment, power supplies, servers, telecom equipment, automotive systems, solar inverters and power-management systems.