INA240A2DR TI Special Purpose

The INA240A2DR is a high-precision voltage-output current-sense amplifier from Texas Instruments, specifically designed for bidirectional sensing with enhanced PWM rejection, making it ideal for noise‑prone motor drive and solenoid control systems . It operates from a single 2.7-V to 5.5-V supply and supports a wide common‑mode voltage range from –4 V to 80 V, independent of supply voltage . This device is offered in an 8‑pin SOIC package and is specified over the –40°C to +125°C temperature range . For selection, first verify the system’s common‑mode voltage falls within –4 V to 80 V. The INA240A2DR provides a fixed gain of 50 V/V; alternative gain options (20, 100, 200 V/V) are available in other A1/A3/A4 variants . The maximum supply current is 2.4 mA, and key accuracy specifications include a maximum gain error of 0.20% (2.5‑ppm/°C drift) and a maximum offset voltage of ±25 μV (250‑nV/°C drift) . The device achieves 132‑dB DC CMRR and 93‑dB AC CMRR at 50 kHz . Key application areas include low‑ and high‑side current sensing in motor drives, solenoids, valve controls, and power management systems. It is also suited for battery charging and protection circuits in telecom equipment, industrial automation, and automotive systems requiring precise measurement over large common‑mode voltage swings . In stock at HL Electronics – request a quote for fast delivery.