The AD8556 is a digitally programmable sensor signal amplifier with EMI filters that provides a single-wire serial interface and stable performance for automotive sensors, pressure and position sensors, precision current sensing and strain gages
The AD8556 is a zero‑drift sensor signal amplifier that offers digitally programmable gain (70‑1280) and output offset. It includes internal EMI filters on the VNEG, VPOS, FILT and VCLAMP pins, and provides open‑wire and shorted‑wire fault detection via pull‑up and pull‑down current sources. The device is designed for automotive, pressure, position, current‑sensing and strain‑gage applications.
The part operates from a single 4.5 V to 5.5 V supply, is specified from –40 °C to +140 °C, and is available in 8‑lead SOIC_N and 16‑lead LFCSP_VQ packages. Detailed electrical specifications, dynamic performance data, absolute maximum ratings and pin‑function descriptions are provided in the document.
| Input Offset Voltage | 10 pV max |
|---|---|
| Input Offset Voltage Drift | 65 nV/°C max |
| CMRR | 94 dB min |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Operating Temperature Range | –40 °C to +140 °C |
| Package Options | 8‑lead SOIC_N, 16‑lead LFCSP_VQ |
The input offset voltage is specified as 10 pV maximum.
It is specified to operate from –40 °C to +140 °C.
The device operates from a single supply of 4.5 V to 5.5 V.
Yes, it includes open‑wire and shorted‑wire fault detection via pull‑up and pull‑down current sources.