AD8605/AD8606/AD8608 is a low noise, CMOS, rail-to-rail input/output operational amplifier with features such as low offset voltage, low input bias currents, low noise, wide bandwidth, high open-loop gain, etc. It is suitable for applications such as photodiode amplification, battery-powered instrumentation, multipole filters, sensors, barcode scanners, audio, etc.
The AD8605 (single), AD8606 (dual) and AD8608 (quad) are precision CMOS operational amplifiers featuring ultra‑low offset voltage, low input bias current, low noise and a wide 10 MHz unity‑gain bandwidth. They support single‑supply operation from 2.7 V to 5.5 V and are available in several compact surface‑mount packages.
The document provides detailed electrical specifications, absolute maximum ratings, noise performance data, power‑supply rejection characteristics, dynamic performance figures, pin‑configuration diagrams and an ordering guide for the various package options.
| Low offset voltage | 65 pV max |
|---|---|
| Low input bias current | 1 pA max |
| Low noise | 8 nV/√Hz |
| Unity‑gain bandwidth | 10 MHz |
| Supply voltage range | 2.7 V to 5.5 V |
They operate from 2.7 V up to 5.5 V on a single supply.
The offset voltage is specified as low as 65 pV maximum.
They are offered in 5‑Ball WLCSP, 5‑Lead SOT‑23, 8‑Ball WLCSP, 8‑Lead MSOP, 8‑Lead SOIC, 14‑Lead SOIC and 14‑Lead TSSOP packages.
The input bias current is as low as 1 pA typical.