Temperature sensors Pressure sensors Precision current sensing Strain gage amplifiers Medical instrumentation Thermocouple amplifiers
This family of amplifiers has ultralow offset, drift, and bias current. The AD8571, AD8572, and AD8574 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/AD8574 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/AD8574 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/AD8574 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.
Applications
Features and Benefits | Amplifiers
SPICE Models |
| Document | note |
| AD8571/AD8572/AD8574: Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers Data Sheet (Rev. F) | PDF 513 kB |
| Document | note |
| AN-214: Ground Rules for High Speed Circuits | PDF 356 kB |
| AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) | PDF 5.3 M |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| AD8572ARUZ Production | 8 ld TSSOP | OTH 96 | -40 to 125C | 2.06 | 1.78 | Y |
| AD8572ARUZ-REEL Production | 8 ld TSSOP | REEL 2500 | -40 to 125C | 0 | 1.78 | Y |
| AD8572ARZ Production | 8 ld SOIC | OTH 98 | -40 to 125C | 2.06 | 1.78 | Y |
| AD8572ARZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 125C | 0 | 1.78 | Y |
| AD8572ARZ-REEL7 Production | 8 ld SOIC | REEL 1000 | -40 to 125C | 0 | 1.78 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-PRAOPAMP-2CPZ | Dual CP-8 lead LFCSP Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-2RMZ | Dual RM-8 lead MSOP Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-2RZ | Dual R-8 lead SOIC Evaluation Board | 20.19 | Y |
