This family of amplifiers has ultralow offset, drift, and bias current. The AD8571, AD8572, and AD8574ARZ-REEL7 are single, dual, and quad amplifiers, respectively, featuring rail-to-rail input and output swings. All are guaranteed to operate from 2.7 V to 5 V single supply.
The AD8571/AD8572/AD8574ARZ-REEL7 provide benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, these zero-drift amplifiers combine low cost with high accuracy. (No external capacitors are required.) Using a patented spread-spectrum, auto-zero technique, the AD8571/AD8572/AD8574ARZ-REEL7 eliminate the intermodulation effects from interaction of the chopping function with the signal frequency in ac applications.
With an offset voltage of only 1 μV and drift of 0.005 μV/°C, the AD8571/AD8572/AD8574ARZ-REEL7 are perfectly suited for applications where error sources cannot be tolerated. Position and pressure sensors, medical equipment, and strain gage amplifiers benefit greatly from nearly zero drift over their operating temperature range. Many more systems require the rail-to-rail input and output swings provided by the AD8571/AD8572/AD8574.
The AD8574-EP supports defense and aerospace applications (AQEC standard)
Feature
- Low offset voltage: 1 μV
- Input offset drift: 0.005 μV/°C
- Rail-to-rail input and output swing
- 5 V/2.7 V single-supply operation
- High gain: 145 dB typical
- CMRR: 140 dB typical
- PSRR: 130 dB typical
- See data sheet for additional features
- Download(pdf)
- Military temperature range (−55°C to +125°C)
- Controlled manufacturing baseline
- One assembly/test site
- One fabrication site
- Enhanced product change notification
- Qualification data available on request
- V62/12634 DSCC Drawing Number
Applications
- Temperature sensors
- Pressure sensors
- Precision current sensing
- Strain gage amplifiers
- Medical instrumentation
- Thermocouple amplifiers
