Overview
Features and Benefits
- 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 AD8574-EP Data Sheet (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
Product Details
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.
The AD8574-EP supports defense and aerospace applications (AQEC standard)
Applications
- Temperature sensors
- Pressure sensors
- Precision current sensing
- Strain gage amplifiers
- Medical instrumentation
- Thermocouple amplifiers
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
-
Ask The Applications Engineer—39: Zero-Drift Operational Amplifiers3/1/2010 Analog Dialogue
Tools & Simulations
LTspice
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
AD8574
SPICE Models
CIR
AD8574 SPICE Macro Model
2.59 K
Design Tools
Analog Filter Wizard
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Analog Photodiode Wizard
Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD8574ARUZ | Material Declaration | Reliability Data | 14-Lead TSSOP | |
| AD8574ARUZ-REEL | Material Declaration | Reliability Data | 14-Lead TSSOP | |
| AD8574ARZ | Material Declaration | Reliability Data | 14-Lead SOIC | |
| AD8574ARZ-REEL | Material Declaration | Reliability Data | 14-Lead SOIC | |
| AD8574ARZ-REEL7 | Material Declaration | Reliability Data | 14-Lead SOIC | |
| AD8574TRUZ-EP | Material Declaration | Reliability Data | 14-Lead TSSOP | |
| AD8574TRUZ-EP-RL | Material Declaration | Reliability Data | 14-Lead TSSOP | |
| Wafer Fabrication Data |
PCN-PDN Information
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Support & Discussions
Sample & Buy
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Buy Now Pricing
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.