INA180B4IDBVT

Overview

The INA180B4IDBVT is a single-channel current sense amplifier from Texas Instruments, housed in a SOT-23-5 package. It operates within a supply voltage range of 2.7 V to 5.5 V and supports a common-mode voltage span 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 maximum gain error of 0.1%. Key electrical specifications include an input offset voltage of 100 µV, input bias current of 80 µA, and quiescent current of 260 µA per channel. It provides a common-mode rejection ratio of 100 dB 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.
• Delivers high precision with a fixed gain of 200 V/V and minimal gain error for accurate measurement.
• Optimized for low power consumption with a low quiescent current suitable for battery-operated systems.

Applications

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

Procurement Notes

Verify the specific suffix IDBVT to confirm the SOT-23-5 surface-mount package and tape-and-reel shipping configuration. Confirm that the B4 variant matches the required 200 V/V gain setting for your circuit design. Check manufacturer lifecycle status as end-of-life notices may affect long-term availability. Ensure thermal management aligns with the specified -40°C to +125°C operating range for your application environment.

Selection Notes

Select this component when a fixed high gain of 200 V/V is required for precise current monitoring in space-constrained designs. The SOT-23-5 package offers a compact footprint compared to larger amplifier packages. Consider the 105 kHz bandwidth and 100 dB CMRR for applications requiring fast response and noise immunity. Evaluate the 260 µA quiescent current against system power budgets to ensure efficiency requirements are met.

Part Context

This part belongs to the INA180 family of current sense amplifiers designed for cost-sensitive and space-limited applications. The family shares similar architectural features but varies in gain settings and packaging options. The INA180 series is engineered to provide accurate DC and low-frequency AC current measurements while maintaining low power consumption and small physical size.

Replacement Considerations

Direct substitutes within the same family include INA180B3IDBVT (Gain 100 V/V) and INA180B1IDBVT (Gain 50 V/V). Verify that the alternative gain factor meets your signal conditioning requirements before substitution.