AD8571/AD8572/AD8574 is a zero drift, single supply, rail-to-rail input/output operational amplifier with ultralow offset voltage, drift, and bias current. It is suitable for temperature sensors, pressure sensors, precision current sensing, strain gage amplifiers, medical instrumentation, thermocouple amplifiers and other applications.
The AD8572 is a dual, zero‑drift, rail‑to‑rail input/output operational amplifier from Analog Devices. It operates from a single supply of 2.7 V to 5 V and offers ultralow offset voltage, drift, and input bias current, making it suitable for precision sensor and instrumentation applications.
Key specifications include a typical offset voltage of 1 µV, input bias current of 10 pA, CMRR of 140 dB, PSRR of 130 dB, and a supply current of 750 µA per amplifier. The datasheet provides pin‑out diagrams for MSOP, SOIC, and TSSOP packages, absolute maximum ratings, thermal characteristics, and an ordering guide.
| Offset Voltage (typical) | 1 µV |
|---|---|
| Input Bias Current (typical) | 10 pA |
| CMRR (typical) | 140 dB |
| PSRR (typical) | 130 dB |
| Supply Current per Amplifier (typical) | 750 µA |
| Gain‑Bandwidth Product | 15 MHz |
The typical offset voltage is about 1 µV.
It operates from 2.7 V to 5 V single supply.
It is used in temperature sensors, pressure sensors, precision current sensing, strain‑gauge amplifiers, medical instrumentation, and thermocouple amplifiers.
The absolute maximum supply voltage is 6 V.