Product Overview: INA301A2IDGKR from Texas Instruments

The INA301A2IDGKR is a precision voltage-output, current-sensing amplifier from Texas Instruments designed to provide a highly accurate, easy-to-use solution for current measurement in a variety of applications. This device incorporates a current-sensing amplifier and a comparator into a single integrated circuit, which simplifies design and improves system reliability.

Featuring a common-mode voltage range from -0.2V to +26V, the INA301A2IDGKR is suitable for both low-side and high-side current sensing. Its wide input common-mode voltage range, coupled with a high accuracy of 1% over the temperature range, makes it an ideal choice for motor control, power management, and overcurrent protection applications.

The device offers a fixed gain of 20 V/V, which provides a precise voltage output directly proportional to the sensed differential voltage across the current-sensing resistor. This allows for easy interfacing with analog-to-digital converters (ADCs) or direct connection to microcontrollers for further processing.

Additionally, the INA301A2IDGKR includes an integrated comparator with an adjustable threshold, enabling overcurrent protection features. This functionality allows for quick system response to overcurrent conditions, helping to prevent damage to sensitive components. The threshold voltage can be set using an external reference voltage, providing flexibility for different current limit settings.

Designed with a wide supply voltage range of 2.7V to 5.5V, this device is versatile for both portable and fixed supply applications. The low quiescent current of 700 µA (typical) helps to maintain energy efficiency, which is particularly beneficial in battery-powered systems.

Available in an 8-pin VSSOP package, the INA301A2IDGKR is compact and suitable for space-constrained applications. It also features a fast response time, making it capable of detecting overcurrent conditions quickly and reliably.

In summary, the INA301A2IDGKR from Texas Instruments is a robust and precise solution for current measurement and overcurrent protection. Its integration of a current-sensing amplifier and comparator, along with its ease of use and high accuracy, make it a valuable component for a wide range of electronic systems.