INA180B1IDBVT

Overview

The INA180B1IDBVT is a single-channel current sense amplifier manufactured by Texas Instruments in the SOT-23-5 package. It operates on a supply voltage ranging from 2.7 V to 5.5 V with a quiescent current of 260 µA. The device features a fixed gain of 20 V/V, a bandwidth of 350 kHz, and a maximum input offset voltage of 100 µV. It supports common-mode voltages from -200 mV to 26 V and offers a common-mode rejection ratio of 100 dB.

Feature Summary

• Supports low-side and high-side current sensing with a wide common-mode voltage range extending below ground.
• Provides a fixed internal gain of 20 V/V to simplify circuit design and reduce component count.
• Delivers high precision with low input offset voltage and low noise density for accurate measurements.

Applications

• Battery management systems
• Load switch control circuits
• Overcurrent protection designs

Procurement Notes

Verify the specific suffix IDBVT confirms the SOT-23-5 surface-mount package and industrial temperature range. Confirm the B1 variant indicates the fixed 20 V/V gain setting. Ensure compatibility with the target PCB footprint and reflow soldering profile requirements for this small outline transistor package.

Selection Notes

Select this component when a compact solution is required for low-voltage current monitoring applications. The fixed gain eliminates external resistor tolerance errors. Consider the 260 µA supply current for battery-powered devices. Verify that the 350 kHz bandwidth meets the dynamic response needs of the specific load switching frequencies.

Part Context

This part belongs to the INA180 family of current sense amplifiers designed for cost-sensitive and space-constrained applications. The series provides various gain options and packages to accommodate different system requirements while maintaining high accuracy and low power consumption characteristics typical of modern sensor interfaces.

Replacement Considerations

INA180B1IDBVRQ1: Automotive qualified version with identical electrical specifications and pinout.

FAQ

What is the fixed gain of the INA180B1IDBVT?

The device has a fixed internal gain of 20 V/V.

Can this amplifier handle negative common-mode voltages?

Yes, it supports common-mode voltages down to -200 mV, enabling low-side sensing capabilities.