INA210-Q1

The INA210-Q1 is a high-precision, low-power current-shunt monitor from Texas Instruments designed for automotive and industrial applications. It features a wide supply voltage range of 2.7 V to 5.5 V, enabling operation in both 3.3 V and 5 V systems commonly found in modern electronic designs. The device offers a maximum accuracy of ±1% over temperature, making it ideal for applications requiring reliable current measurement under varying environmental conditions. This integrated circuit includes a differential amplifier with a fixed gain of 50 V/V, allowing precise measurement of small voltage drops across a shunt resistor. With a common-mode input range from 0 V to 26 V, the INA210-Q1 can accurately sense current in high-side configurations, which is essential for battery management systems and motor control circuits. Its low quiescent current of just 150 µA ensures minimal power consumption, aligning with energy-efficient design requirements. The INA210-Q1 supports a digital output interface via an open-drain comparator that provides a threshold-based alert when the measured current exceeds a user-defined level. This feature enhances system safety by enabling real-time fault detection without requiring a microcontroller. Additionally, the device operates reliably across a wide temperature range from -40°C to +125°C, meeting the stringent AEC-Q100 Grade 1 qualification standards for automotive electronics. Designed for robust performance in harsh environments, the INA210-Q1 includes built-in protection mechanisms such as overvoltage and electrostatic discharge (ESD) protection up to ±2 kV HBM. These features contribute to long-term reliability in demanding applications like electric vehicle battery monitoring, DC/DC converters, and industrial motor drives. The compact SOIC-8 package further simplifies integration into space-constrained PCB layouts. With its combination of high accuracy, low power, and automotive-grade reliability, the INA210-Q1 serves as a versatile solution for current sensing in safety-critical systems where precision and durability are paramount.