Texas Instruments

INA281A4QDBVRQ1

INA281A4QDBVRQ1 Description

The INA281A4QDBVRQ1 is a high-performance current sense amplifier designed and manufactured by Texas Instruments. This device is part of the OP Amps, Buffer Amps ICs category and is specifically tailored for automotive applications. It is available in a compact SOT23-5 package, making it suitable for surface mount applications. The INA281A4QDBVRQ1 is REACH unaffected and RoHS3 compliant, ensuring compliance with environmental regulations.

INA281A4QDBVRQ1 Features

• Voltage Supply Span: The INA281A4QDBVRQ1 operates over a wide voltage range, from a minimum of 2.7 V to a maximum of 20 V, providing flexibility in various power supply scenarios.
• Gain Bandwidth Product: With a gain bandwidth product of 1.3 MHz, this amplifier offers excellent high-frequency performance for demanding applications.
• Slew Rate: The device boasts a fast slew rate of 2.5V/µs, ensuring quick response times in high-speed applications.
• Input Bias Current: The INA281A4QDBVRQ1 has a low input bias current of 20 µA, which minimizes power consumption and reduces errors in current sensing applications.
• Input Offset Voltage: The voltage input offset is only 100 µV, contributing to high accuracy in current sensing applications.
• Current Supply: The device consumes a low supply current of 1.5mA, making it energy-efficient for battery-powered systems.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the INA281A4QDBVRQ1 is resistant to moisture, ensuring reliable operation in harsh environments.

INA281A4QDBVRQ1 Applications

The INA281A4QDBVRQ1 is ideal for a variety of applications where precise current sensing is required. Some specific use cases include:

1. Battery Management Systems: The INA281A4QDBVRQ1 can be used to monitor battery currents in electric vehicles, ensuring optimal battery performance and safety.
2. Power Supplies: This amplifier can be used to sense currents in power supply systems, providing feedback for efficient power management.
3. Industrial Control Systems: The INA281A4QDBVRQ1 can be employed in motor control applications, where accurate current sensing is crucial for system stability and performance.
4. Automotive Applications: Due to its automotive grade, the INA281A4QDBVRQ1 is well-suited for various automotive applications, including engine control units and in-vehicle power management systems.

Conclusion of INA281A4QDBVRQ1

The INA281A4QDBVRQ1 is a versatile and high-performance current sense amplifier that offers a combination of low power consumption, high accuracy, and wide voltage range. Its unique features, such as low input bias current and fast slew rate, make it an ideal choice for demanding applications in battery management, power supplies, industrial control systems, and automotive applications. With its automotive grade and compliance with environmental regulations, the INA281A4QDBVRQ1 is a reliable and efficient solution for current sensing in a variety of applications.