INA180A1IDBVR

Overview

The INA180A1IDBVR is a unidirectional current sense amplifier manufactured by Texas Instruments. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a maximum quiescent current of 260 uA. The device features a fixed gain of 20 V/V and supports a common-mode input voltage range from -200 mV to 26 V. Key electrical specifications include a gain bandwidth product of 350 kHz, a common-mode rejection ratio of 100 dB, an input offset voltage of 100 uV, and a gain error of 0.1%. It is housed in a SOT-23-5 package.

Feature Summary

• Unidirectional current sensing capability for low-side and high-side monitoring
• Integrated precision matched resistor network providing fixed gain options
• Wide common-mode voltage range supporting operation near ground or positive rails

Applications

• Battery-powered equipment current monitoring
• Power delivery and distribution systems
• Overcurrent protection circuits

Procurement Notes

Verify the specific suffix IDBVR corresponds to the SOT-23-5 surface-mount package and reel packaging configuration. Confirm that the A1 grade matches the required 20 V/V gain specification for the design. Ensure compatibility with the target operating temperature range of -40 C to +125 C. Cross-reference the manufacturer part number against official distributor catalogs to confirm availability and authenticity before procurement.

Selection Notes

Select this component when a unidirectional measurement architecture is sufficient for the application requirements. The fixed 20 V/V gain is suitable for applications requiring moderate amplification of small differential voltages across shunt resistors. Consider the SOT-23-5 footprint constraints and the 260 uA supply current impact on total system power budget during selection.

Part Context

This device belongs to the INA180 family of current sense amplifiers designed for cost-sensitive and space-constrained applications. Unlike the bidirectional INA181 series, the INA180 provides unidirectional output relative to the reference pin. It serves as a compact solution for monitoring current flow in portable electronics and industrial control systems where negative common-mode voltages are not present.

Replacement Considerations

INA180A1IDBVT (Tape and Reel variant)

FAQ

Is the INA180A1IDBVR capable of measuring negative currents?

No, the INA180A1IDBVR is a unidirectional current sense amplifier and cannot measure negative currents.

What is the fixed internal gain of the INA180A1IDBVR?

The INA180A1IDBVR has a fixed internal gain of 20 V/V.