INA181A1IDBVT

Overview

The INA181A1IDBVT is a unidirectional current-sense amplifier manufactured by Texas Instruments. It features a fixed gain of 20 V/V and operates within a supply voltage range of 2.7 V to 5.5 V. The device supports bidirectional sensing with a common-mode voltage range extending from -0.2 V to 26 V. Key electrical specifications include a gain-bandwidth product of 350 kHz, an input offset voltage of 100 µV, and a quiescent current of 195 µA. It is housed in a SOT-23-6 package and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Supports low-side current sensing configurations with ground-referenced inputs
• Provides high accuracy through low input offset voltage and bias current specifications
• Operates with extended common-mode voltage range for flexible system integration

Applications

• Low-side current measurement circuits
• Battery management systems
• Industrial process control monitoring

Procurement Notes

Verify the specific suffix IDBVT corresponds to the SOT-23-6 surface-mount package configuration. Confirm that the A1 grade meets the required precision standards for your application. Ensure compatibility with the intended operating temperature range and supply voltage constraints before finalizing procurement decisions.

Selection Notes

Select this component when low-side current sensing is required with a fixed gain of 20 V/V. It is suitable for applications needing a wide common-mode voltage range up to 26 V while maintaining low power consumption. Consider the SOT-23-6 package size for space-constrained designs requiring surface-mount technology.

Part Context

This part belongs to the INA181 series of current-sense amplifiers from Texas Instruments. The series is designed for precise current monitoring in various electronic systems. The INA181A1 variant specifically offers a fixed gain of 20 V/V, distinguishing it from other gain options within the same family.

FAQ

Is the INA181A1IDBVT suitable for high-side current sensing?

No, the INA181A1IDBVT is designed for low-side current sensing applications where the shunt resistor is placed between the load and ground.

What is the maximum common-mode voltage supported?

The device supports a common-mode voltage range from -0.2 V to 26 V, allowing flexibility in circuit design.