INA28x Bidirectional Current Shunt Monitors Texas Instruments INA28x Bidirectional Current Shunt Monitors are voltage output current shunt monitors that can sense drops across shunts at common-mode voltages from -14V to +80V. This is done independent of the supply voltage. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale. These current sense amplifiers operate from a single +2.7V to +18V supply. They draw a maximum of 900µA of supply current. Texas Instruments INA28x Bidirectional Current Shunt Monitors are specified over the extended operating temperature range of -40°C to +125°C. They are also offered in SOIC-8 and VSSOP-8 packages.