Maxim Integrated MAX44285LAWA+T, Current Sense Amplifier, dual circuit, 80 kHz -3dB bandwidth, 12 µV input offset, 2.7 V to 5.5 V supply, -40°C to 125°C, 8-WLP package, Surface Mount.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Amplifier type | Current Sense |
| Voltage - input offset | 12 µV |
| Voltage - supply span | 5.5 V |
| Current - input bias | 65 µA |
| Operating temperature | -40°C ~ 125°C |
| -3db bandwidth | 80 kHz |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 8-WFBGA, WLBGA |
| Number of circuits | 2 |
The 12 µV input offset voltage keeps the error small at low shunt drops, which is the key spec when you are sensing milliohm shunts at amp-level currents.
Input bias current is 65 µA per amplifier, which loads the shunt slightly — factor that into the shunt value calculation if you are measuring microamp-level currents.
ROHS3 compliant.
Yes.
The -3dB bandwidth is 80 kHz. This is the frequency at which the gain drops by 3 dB; for accurate current measurement, keep the signal content below roughly one-tenth of that bandwidth.