INA2181A2IDGSR

The INA2181A2IDGSR is a precision current shunt monitor from Texas Instruments, designed for high-performance applications requiring accurate current sensing. This device is particularly useful in power management systems, battery monitoring, and industrial automation.

Key Features:

1. Current Sensing: The INA2181A2IDGSR can measure small voltage drops across a shunt resistor, allowing for precise current measurements. It is capable of sensing currents in both directions, making it suitable for bidirectional current monitoring.

2. Wide Supply Voltage Range: The device operates over a supply voltage range of 2.7V to 5.5V, making it versatile for various applications, including battery-powered devices.

3. High Common-Mode Voltage Range: The INA2181A2IDGSR supports a common-mode voltage range of up to 26V, which is beneficial for high-side current sensing applications.

4. Gain Options: The device features a fixed gain of 100V/V, which allows for a significant amplification of the voltage drop across the shunt resistor, ensuring that even small currents can be accurately measured.

5. Low Offset Voltage: With a low input offset voltage, the INA2181A2IDGSR provides high accuracy in current measurements, minimizing errors due to the inherent characteristics of the device.

6. Integrated Protection Features: The device includes built-in protection against overvoltage and reverse polarity, enhancing its reliability in various operating conditions.

7. Small Package Size: The INA2181A2IDGSR is available in a compact SOT-23 package, which is ideal for space-constrained applications.

8. Temperature Range: It operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

9. Output Options: The output of the INA2181A2IDGSR is a linear voltage that corresponds to the sensed current, which can be easily interfaced with microcontrollers or ADCs for further processing.

Applications:

• Battery Management Systems: For monitoring charge and discharge currents in battery packs.
• Power Supply Monitoring: To measure load currents in power supply circuits.
• Motor Control: For current feedback in motor drive applications.
• Industrial Automation: In systems requiring precise current measurements for control and monitoring.

Conclusion:

The INA2181A2IDGSR from Texas Instruments is a robust and precise current shunt monitor that offers a combination of high accuracy, wide operating range, and compact design. Its features make it an excellent choice for a variety of applications where reliable current sensing is critical.