INA2133UA/2K5

The INA2133UA/2K5 is a precision current sense amplifier manufactured by Texas Instruments. This device is designed to provide accurate current measurement in a variety of applications, including battery management systems, motor control, and power monitoring.

Key Features:

1. Current Sensing: The INA2133 is optimized for low-side current sensing, allowing it to measure the voltage drop across a shunt resistor placed between the load and ground. This enables accurate current measurement without interrupting the circuit.

2. Gain Configuration: The amplifier has a fixed gain of 100 V/V, which allows for a significant amplification of the small voltage drop across the shunt resistor, making it easier to read with standard analog-to-digital converters (ADCs).

3. Input Common-Mode Range: The device features a wide input common-mode voltage range, which allows it to operate effectively in various system voltages. This is particularly useful in automotive and industrial applications where the common-mode voltage can vary significantly.

4. Low Offset Voltage: The INA2133 boasts a low input offset voltage, which enhances its accuracy in current sensing applications. This is crucial for applications requiring precise measurements, such as battery monitoring.

5. Low Noise: The amplifier is designed to minimize noise, ensuring that the current measurements are stable and reliable, even in noisy environments.

6. Power Supply: The INA2133 operates from a single supply voltage, typically ranging from 2.7V to 5.5V, making it suitable for battery-powered applications.

7. Package: The device is available in a compact, thermally efficient package, which is ideal for space-constrained designs. The specific package type for the INA2133UA/2K5 is the MSOP-8, which allows for easy integration into various circuit layouts.

8. Temperature Range: The INA2133 is rated for operation over an extended temperature range, making it suitable for use in harsh environments.

Applications:

• Battery Management Systems: For monitoring charge and discharge currents in battery packs.
• Motor Control: To measure the current flowing to motors, enabling efficient control and protection.
• Power Monitoring: In systems where accurate power consumption data is critical for performance and efficiency.

Conclusion:

The INA2133UA/2K5 from Texas Instruments is a versatile and highly accurate current sense amplifier that is well-suited for a wide range of applications. Its combination of precision, low noise, and wide common-mode range makes it an excellent choice for engineers looking to implement reliable current sensing in their designs.