AD8553 is a 1.8V to 5V auto-zero, in-amp with shutdown. It features low offset voltage, low offset drift, high common-mode rejection, low noise, wide gain range, and single-supply operation.
The AD8553 is a precision instrumentation amplifier with low offset voltage, low noise, rail‑to‑rail output, and a shutdown mode that reduces supply current to under 4 µA. It operates from a single supply of 1.8 V to 5.5 V and offers a wide gain range of 0.1 to 10 000, making it suitable for strain‑gauge, pressure‑sensor, medical‑instrument, and laser‑diode applications.
The datasheet includes detailed electrical characteristics, absolute maximum ratings, typical performance graphs, and design guidelines such as power‑supply bypassing, layout recommendations, and input protection. Ordering information and package dimensions for the 10‑lead MSOP are also provided.
| Supply Voltage Range | 1.8 V to 5.5 V |
|---|---|
| Input Offset Voltage (typical, G=1000) | 20 µV |
| Input Bias Current (typical) | 1 nA |
| Power Supply Rejection (PSR) at G=100 | 100 dB |
| Output Voltage High (typical) | 4.925 V |
| Output Voltage Low (typical) | 0.075 V |
| Gain Range | 0.1 to 10 000 |
The AD8553 operates from a single supply of 1.8 V to 5.5 V.
The typical input offset voltage at G = 1000 is 20 µV.