
3PEAK
A functional alternative that requires circuit redesign as it is a general op-amp, not a dedicated current sense amplifier.
Finding a substitute for the INA180A1IDBVR current sense amplifier requires careful review. While no direct drop-in replacements are common, functional alternatives may exist if circuit redesign is possible.
Functional mismatch; candidate cannot handle the target's common-mode voltage.
A new circuit design will change the transfer function, likely requiring firmware changes.
No, there is no direct, pin-compatible replacement for the INA180A1IDBVR among the reviewed candidates. The target is a specialized current sense amplifier.
Search for other dedicated current sense amplifiers with similar gain (20 V/V), common-mode voltage range (up to 26V), and SOT-23-5 package.
The primary risk is functional mismatch; replacing a dedicated current sense amplifier with a general-purpose op-amp requires a new circuit design and validation.

3PEAK
A functional alternative that requires circuit redesign as it is a general op-amp, not a dedicated current sense amplifier.
| Feature / factor | INA180A1IDBVR | TP5591-TR | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Function | Current Sense Amp | Op-Amp | Op-Amp — Target is a dedicated Current Sense Amplifier. Requires circuit redesign. | ||
| Package | SOT-23-5 | SOT-23-5 | SOT-23-5 — Package matches, but pinout must be verified for new circuit. | ||
| Voltage | 2.7V - 5.5V | 1.8V - 5.5V | 1.8V - 5.5V — Candidate supply voltage range covers target's range. | ||
| Offset Voltage | 150µV | 20µV | 20µV — Candidate has lower offset voltage, which is beneficial. | ||
| Common Mode Voltage | -0.2V to +26V | Limited by Vsupply | Limited by Vsupply — Candidate cannot match target's high common-mode range. |
The best alternative would be another current sense amplifier with a 20V/V gain, support for a common-mode voltage up to 26V, and a SOT-23-5 package. General-purpose op-amps are not direct substitutes.