INA180A4IDBVR

Overview

The INA180A4IDBVR is a single-channel current sense amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 5.5 V and supports a common-mode input voltage from -200 mV to 26 V. The device features a fixed gain of 200 V/V, a gain-bandwidth product of 105 kHz, and a common-mode rejection ratio of 100 dB. Key electrical specifications include an input offset voltage of 100 µV, an input bias current of 80 µA, and a quiescent current of 260 µA. It provides an output swing capability of 8 mA per channel and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Supports low-side and high-side current sensing with a wide common-mode voltage range extending to negative values.
• Provides precision amplification with a fixed gain of 200 V/V and high common-mode rejection for accurate signal processing.
• Delivers rail-to-rail output swing capabilities suitable for direct interfacing with downstream data acquisition systems.

Applications

• Industrial process control systems requiring precise current monitoring
• Power distribution units for load management and protection
• Battery management systems in portable electronic devices

Procurement Notes

Verify the specific suffix 'A4' confirms the 200 V/V fixed gain configuration before procurement. Ensure the 'I' designation matches industrial temperature requirements (-40°C to +125°C). Confirm the 'DBVR' package type corresponds to the SOT-23-5 form factor required for the target PCB layout. Cross-reference the manufacturer datasheet for any recent pinout or marking changes.

Selection Notes

Select this component when a higher fixed gain of 200 V/V is necessary to amplify small differential signals from low-value shunt resistors. The 105 kHz bandwidth offers sufficient speed for general-purpose applications while maintaining low power consumption. Consider the 100 dB CMRR for environments with significant common-mode noise. The SOT-23-5 package is ideal for space-constrained designs where surface-mount assembly is preferred.

Part Context

This device belongs to the INA180 family of current sense amplifiers designed for cost-sensitive and space-limited applications. It shares the same core architecture as other variants in the series but differs primarily in its fixed internal gain setting. The family is characterized by low quiescent current and wide common-mode voltage operation, making it a standard choice for basic current monitoring tasks in consumer and industrial electronics.

Replacement Considerations

INA180A3IDBVR (Gain: 100 V/V)

FAQ

What is the fixed voltage gain of the INA180A4IDBVR?

The INA180A4IDBVR has a fixed internal gain of 200 V/V.

Does the INA180A4IDBVR support high-side current sensing?

Yes, it supports both low-side and high-side current sensing with a common-mode voltage range up to 26 V.