This document provides preliminary technical data on the AD8253 CMOS programmable gain instrumentation amplifier with features including small package, programmable gains, wide supply range, excellent DC and AC performance.
The AD8253 is a monolithic instrumentation amplifier with digitally programmable gains of 1, 10, 100, 1000. It features a small 10‑lead MSOP package, wide supply range (+5 V to +15 V), low power consumption (≈45 mA), and high performance metrics such as 10 MHz bandwidth at gain 1, 120 dB CMRR, and 8 nV/√Hz noise at gain 1000. These characteristics make it suitable for data‑acquisition, biomedical analysis, and test‑and‑measurement applications.
The datasheet provides detailed specifications, pin configuration, functional block diagrams, timing diagrams for both transparent and latched gain modes, and ordering information. It also lists absolute maximum ratings and thermal considerations for reliable operation across –40 °C to +85 °C.
| Gain range | 1, 10, 100, 1000 |
|---|---|
| CMRR (G=100) | 120 dB |
| Voltage noise (G=1000) | 8 nV/√Hz |
| Bandwidth (G=1) | 10 MHz |
| Settling time (G=1) | 615 ns |
| Slew rate (G=1) | 20 V/µs |
| Output swing | ‑13.5 V to +13.5 V |
| Supply voltage range | +5 V to +15 V |
| Operating temperature range | ‑40 °C to +85 °C |
The AD8253 provides programmable gains of 1, 10, 100, and 1000, selectable via digital pins or a parallel interface.
At a gain setting of 1, the AD8253 has a –3 dB bandwidth of 10 MHz.
The AD8253 operates from a single supply of +5 V to +15 V.