Texas Instruments INA281A4IDBVR, current sense amplifier, single circuit, 900 kHz gain bandwidth, 2.5 V/µs slew rate, 2.7 V to 20 V supply, SOT-23-5, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Amplifier type | Current Sense |
| Voltage - input offset | 30 µV |
| Voltage - supply span | 2.7 V |
| Current - supply | 1.5mA |
| Current - input bias | 20 µA |
| Operating temperature | -40°C ~ 125°C (TA) |
| Gain bandwidth product | 900 kHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Slew rate | 2.5V/µs |
| Case | SC-74A, SOT-753 |
| Number of circuits | 1 |
The INA281A4IDBVR: The 900 kHz gain-bandwidth product and 2.5 V/µs slew rate give it enough speed to track PWM ripple and short-circuit events in switching power stages without excessive delay.
The 900 kHz gain-bandwidth product and 2.5 V/µs slew rate allow tracking PWM ripple and short-circuit events in switching power stages.
The ROHS3 compliance is current — no exemption expiry concerns for EU markets.
The INA254A1IPWAR is a zero-drift current sense amplifier in the same family, but with a lower 350 kHz bandwidth and 2.4 V/µs slew rate. The zero-drift architecture gives it lower input offset drift over temperature, which matters for precision DC measurement. The INA281A4IDBVR's 900 kHz bandwidth makes it a better fit when you need to track faster current transients.