The INA290-Q1 enables accurate current measurement across the entire valid V_SENSE range. The zero-drift input architecture of the INA290-Q1 provides the low offset voltage and low offset drift needed to measure low V_SENSE levels accurately across the wide operating temperature of –40 °C to +125 °C. The capability to measure low sense voltages enables accurate measurements at lower load currents, and also allows reduction of the sense resistor value for a given operating current, which minimizes the power loss in the current sensing element.