Texas Instruments INA240A2DR, current sense amplifier, single circuit, 400 kHz -3dB bandwidth, 2V/µs slew rate, 5 µV input offset, 1.8 mA supply, 2.7 V to 5.5 V supply span, -40°C to 125°C, 8-SOIC package.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Amplifier type | Current Sense |
| Voltage - input offset | 5 µV |
| Voltage - supply span | 5.5 V |
| Current - supply | 1.8mA |
| Current - input bias | 90 µA |
| Operating temperature | -40°C~125°C |
| -3db bandwidth | 400 kHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Slew rate | 2V/µs |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Number of circuits | 1 |
Its 400 kHz -3 dB bandwidth and 2 V/µs slew rate support fast overcurrent detection and PWM-loop current feedback in motor drives and DC-DC converters. The 5 µV typical input offset keeps the zero-current error low enough to resolve milliohm shunt drops without calibration.
Quiescent supply current is 1.8 mA, which is moderate for a 400 kHz current-sense amp — it stays below the 2 mA mark that would push a 24 V always-on rail into thermal budget trouble.
The -3 dB bandwidth is 400 kHz. This is sufficient for switching-frequency ripple sensing in most motor drives and power converters; for sub-100 µs fault detection, the 2 V/µs slew rate is the limiting factor, not the bandwidth.
The quiescent supply current is 1.8 mA. This is drawn from the Vcc pin and does not include the output load current.