INA187 High-Precision Current Sense Amplifier

Texas Instruments INA187 High-Precision Current Sense Amplifier is a precise, bidirectional current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –2V to +42V, independent of the supply voltage. The high-precision current measurement is achieved through a combination of low offset voltage (±150µV, maximum), small gain error (±0.25%, maximum), and a high DC CMRR (typical 120dB). The INA187 is designed for bidirectional DC current measurements and high-speed applications (such as fast overcurrent protection and transient detection) with a high signal bandwidth of 650kHz and a fast settling time.