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ADR291GRZ-REEL
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Product Detailed Parameters
- Description：IC VREF SERIES 0.24% 8SOIC
- Series：XFET®
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：5 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The ADR291GRZ-REEL is a low noise, micropower precision voltage reference from Analog Devices utilizing XFET architecture. It provides a fixed 2.5 V output with an initial accuracy of ±0.24% and a maximum temperature coefficient of 25 ppm/°C. The device operates within a supply range of 2.8 V to 15 V and draws a maximum quiescent current of 15 μA across the extended industrial temperature range of −40°C to +125°C. It features a low noise output of 8 μV p-p (0.1 Hz to 10 Hz) and supports a maximum load current of 5 mA.
Feature Summary
- Utilizes XFET architecture for low noise and high stability
- Micropower operation suitable for battery-powered applications
- High output current capability for driving loads directly
Applications
- Portable instrumentation
- Precision reference for 3 V and 5 V systems
- Analog-to-digital and digital-to-analog converter reference
- Solar-powered applications
- Loop-current-powered instruments
Procurement Notes
Verify the specific suffix indicates reel packaging when ordering. Confirm the G grade specifications match the required accuracy and temperature coefficient for your design. Ensure the SOIC-8 package dimensions align with your PCB layout constraints. Cross-reference the datasheet revision to confirm all electrical parameters are current.
Selection Notes
Select this component for designs requiring low power consumption alongside stable voltage regulation. The 2.5 V output is ideal for single-supply systems operating at 3 V or higher. Consider the thermal performance in enclosed spaces due to the small package size. Verify that the input voltage remains within the specified minimum and maximum limits during operation.
Part Context
This part belongs to the ADR291/ADR292 series of precision voltage references. The family includes variants with different output voltages, accuracies, and packages. The GRZ designation specifically identifies the G grade accuracy level in an 8-lead SOIC package. Other grades offer tighter tolerances for more demanding applications.
Replacement Considerations
Pin-compatible alternatives include other members of the ADR291 family such as the ADR291ERZ or ADR291FRZ for higher accuracy requirements. Check datasheets for matching pinouts and electrical characteristics before substitution.
