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AD8571ARZ
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Product Detailed Parameters
- Description：IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Amplifier Type：Zero-Drift
- Number of Circuits：1
- Output Type：Rail-to-Rail
- Slew Rate：0.4V/µs
- Gain Bandwidth Product：1.5 MHz
- Current - Input Bias：10 pA
- Voltage - Input Offset：1 µV
- Current - Supply：850µA
- Current - Output / Channel：30 mA
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：-
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Overview
The AD8571ARZ is a single-channel, zero-drift operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output capabilities and operates on a single supply voltage ranging from 2.7 V to 5 V. Key electrical specifications include a maximum offset voltage of 10 μV across the temperature range, an input bias current of 1.5 nA maximum, and a gain bandwidth product of 1.5 MHz. The device provides high open-loop gain of 145 dB typical, with a common-mode rejection ratio of 140 dB and power supply rejection ratio of 130 dB. It is housed in an 8-lead SOIC package.
Feature Summary
- Utilizes spread-spectrum auto-zero technology to eliminate intermodulation distortion effects in AC applications.
- Features rail-to-rail input and output swings for maximum dynamic range within the supply voltage limits.
- Provides ultralow offset voltage and drift characteristics suitable for precision measurement applications.
- Requires no external capacitors for stabilization due to internal compensation design.
Applications
- Temperature sensors
- Pressure sensors
- Precision current sensing
- Strain gage amplifiers
- Medical instrumentation
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and reel configuration. Confirm that the component meets all required environmental and safety standards for the intended deployment environment before finalizing procurement decisions.
Selection Notes
Select this component for designs requiring high DC precision without external trimming. Ensure the application stays within the specified 2.7 V to 5 V single-supply range. Consider the thermal resistance characteristics if operating near the upper temperature limits or under heavy load conditions.
Part Context
This part belongs to the AD857x family of zero-drift, single-supply, rail-to-rail operational amplifiers. The family includes dual (AD8572) and quad (AD8574) variants sharing similar electrical performance characteristics but differing in channel count and pin configurations.
Replacement Considerations
Direct substitutes within the same family include the AD8572ARZ and AD8574ARZ, provided the channel count matches the circuit requirements. Verify pin compatibility when replacing with other packages in the series.
FAQ
Does the AD8571ARZ require external capacitors for stability?
No, the AD8571ARZ does not require external capacitors for operation as it utilizes an internal compensation design.
What is the mechanism used to achieve low offset drift?
The amplifier uses a random frequency auto-zero stabilization technique combined with a spread-spectrum clock to minimize intermodulation distortion and maintain low offset voltage over temperature.
