Product Overview: INA190A3IRSWT by Texas Instruments

The INA190A3IRSWT is a high-precision current-sense amplifier from Texas Instruments (TI), designed to provide industry-leading accuracy and performance for a wide range of applications. This device is a part of the INA190 series, which are bidirectional, zero-drift, current-sense amplifiers that use the TI proprietary auto-zeroing techniques to provide low offset voltage and the elimination of the 1/f noise. This makes the INA190A3IRSWT an excellent choice for applications requiring high-resolution current measurement.

With a common-mode voltage range from -0.2V to +26V, the INA190A3IRSWT is versatile and can be used in systems with varying levels of common-mode voltage. This feature allows the amplifier to perform accurately in both high-side and low-side current sensing configurations. Additionally, the device operates over a wide temperature range from -40°C to +125°C, ensuring reliable performance in harsh environments.

The INA190A3IRSWT offers a fixed gain of 100V/V, providing a precise amplification of the differential input signal. This fixed gain simplifies the design process, as no external gain-setting components are required. The high accuracy of the amplifier, with a maximum offset voltage of 35 µV and a maximum gain error of 0.2%, ensures that the current measurement is precise, which is critical for system monitoring and control.

Designed with a quiescent current of only 260 µA (typical), the INA190A3IRSWT is an energy-efficient solution, making it suitable for battery-powered and energy-sensitive applications. The device is also equipped with a shutdown feature that reduces the current consumption to a mere 1.7 µA (typical) when not in active operation, further conserving power.

Available in an ultra-small, leaded SOT-23 package, the INA190A3IRSWT is ideal for space-constrained applications. Its small footprint allows for high-density mounting and can be easily integrated into a variety of electronic systems.

Whether you are designing power management systems, battery chargers, or any application requiring precise current monitoring, the INA190A3IRSWT from Texas Instruments provides a reliable and accurate solution to meet your current-sensing needs.