Product Overview: INA240A3QDRQ1 from Texas Instruments

The INA240A3QDRQ1 is a precision current-sense amplifier designed by Texas Instruments, tailored for automotive and industrial applications that demand high accuracy and reliability. This device is part of the INA240 series, which is renowned for its performance in measuring voltage drops across shunt resistors over a wide range of common-mode voltages.

Key Features

• High Accuracy: The INA240A3QDRQ1 offers an impressive gain error of just 0.1% (max) and a gain drift of 10 ppm/°C (max), ensuring precise current measurement across its operating temperature range.
• Wide Common-Mode Range: It operates over a common-mode voltage range of -4V to +80V, making it highly adaptable to various circuit environments.
• Enhanced Safety: Designed for automotive applications, it comes with fail-safe features like overvoltage protection up to 100V for transient conditions.
• Low Offset: The device features a low offset voltage of 35 µV (max), which further contributes to its precise measurement capabilities.
• Bandwidth and Filtering: It offers a bandwidth of 400 kHz with the option to adjust the filter bandwidth with an external capacitor for noise reduction in noisy environments.

Applications

The INA240A3QDRQ1 is suitable for a wide range of applications, particularly within the automotive sector, including:

• Motor control
• Battery management systems
• Overcurrent protection
• Power management systems

In addition to automotive applications, it is also ideal for industrial systems that require precise current monitoring, such as:

• Power supply control
• Energy metering
• Test and measurement systems

Quality and Reliability

The INA240A3QDRQ1 is AEC-Q100 qualified, ensuring that it meets the stringent reliability standards required for automotive-grade components. It is also provided in a compact, thermally enhanced 16-pin VQFN package, which aids in maintaining thermal performance and space efficiency on the circuit board.

Overall, Texas Instruments' INA240A3QDRQ1 is a robust and precise solution for current-sensing applications where accuracy and dependability are paramount.