Product Overview: INA2181A2QDGSRQ1 from Texas Instruments

The INA2181A2QDGSRQ1 is a state-of-the-art automotive, bidirectional, zero-drift current shunt monitor from Texas Instruments. Designed for high-accuracy applications, this device offers a dual-channel solution that is ideal for electronic power steering, motor control, battery management, and other automotive systems that require precise current measurement.

Key Features

• High Accuracy: The INA2181A2QDGSRQ1 boasts a zero-drift architecture, which ensures high accuracy over time and temperature, minimizing offset drift and gain errors.
• Dual-Channel: With two independent channels, this device can monitor two separate shunt resistors, providing flexibility in system design and reducing component count.
• Wide Common-Mode Range: It operates over a wide common-mode voltage range from -0.3V to +26V, making it suitable for various applications, including those with significant common-mode noise.
• Low Offset Voltage: The device features a low offset voltage of 10 µV (max), which allows for accurate low-side current measurements.
• Common-Mode Rejection Ratio (CMRR): With a CMRR of 120 dB (min), the INA2181A2QDGSRQ1 ensures accurate measurements in the presence of potential common-mode interference.
• Automotive Qualified: As a Q1 device, it meets the stringent requirements of the automotive industry, including AEC-Q100 qualification for reliability and performance.

Applications

The INA2181A2QDGSRQ1 is engineered for a variety of automotive applications, including:

• Electronic Power Steering (EPS)
• Motor Control Systems
• Battery Management Systems (BMS)
• Inverter Control
• Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) Systems

Package and Availability

This current shunt monitor is offered in a compact VSSOP-10 package, optimizing board space in tight designs. For further information on pricing and availability, please contact Texas Instruments or an authorized distributor.