INA180B2IDBVT

Overview

The INA180B2IDBVT is a single-channel current sense amplifier from Texas Instruments, housed in a SOT-23-5 package. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a maximum quiescent current of 260 µA. The device supports a common-mode voltage range from -200 mV to 26 V and features a fixed gain of 50 V/V. Key electrical specifications include a gain bandwidth product of 210 kHz, a common-mode rejection ratio of 100 dB, an input offset voltage of 100 µV, and an input bias current of 80 µA. It functions within an extended temperature range of -40°C to +125°C.

Feature Summary

• Integrated matched resistor network providing a fixed gain of 50 V/V for high accuracy
• Supports low-side and high-side current sensing with a wide common-mode voltage range
• Optimized for low power consumption with a maximum operating supply current of 260 µA

Applications

• Motor control systems
• Battery monitoring circuits
• Power management units
• Overcurrent detection protection

Procurement Notes

Verify the specific suffix IDBVT confirms the SOT-23-5 surface-mount package and tape-and-reel shipping configuration. Confirm the B2 grade designation corresponds to the required 50 V/V gain setting. Ensure the component meets RoHS compliance standards for your manufacturing process. Check for any end-of-life notices or obsolescence warnings associated with this specific part number before finalizing procurement plans.

Selection Notes

Select this component when a fixed 50 V/V gain is required for precise current measurement applications. It is suitable for designs needing operation up to 26 V common-mode voltage while maintaining low power dissipation. Consider the SOT-23-5 footprint constraints and the -40°C to +125°C temperature rating. Compare against other gain variants if different amplification factors are needed for the target shunt resistor value.

Part Context

This device belongs to the INA180 family of cost-optimized current sense amplifiers. The series offers multiple fixed gain options (20, 50, 100, and 200 V/V) to simplify design implementation. These amplifiers are designed to detect voltage drops across shunt resistors independently of the supply voltage, making them versatile for various industrial and consumer electronics applications requiring accurate current monitoring.

Replacement Considerations

INA180B2IDBVR: Same functional specifications but packaged in SOIC-5 instead of SOT-23-5.