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ADR292:  Low Noise Micropower Precision Voltage Reference (4.096 V)

Product Details


Newer Alternatives: NEW DESIGNS with input voltages up to 5.5V max consider the ADR3440 or ADR3540.

The ADR291 and ADR292 are low noise, micropower precision voltage references that use an XFET® reference circuit. The new XFET architecture offers significant performance improvements over traditional band gap and buried Zener-based references. Improvements include one quarter the voltage noise output of band gap references operating at the same current, very low and ultralinear temperature drift, low thermal hysteresis, and excellent long-term stability.

The ADR291/ADR292 family is a series of voltage references providing stable and accurate output voltages from supplies as low as 2.8 V for the ADR291. Output voltage options are 2.5 V and 4.096 V for the ADR291 and ADR292, respectively.

Quiescent current is only 12 μA, making these devices ideal for battery-powered instrumentation. Three electrical grades are available offering initial output accuracies of ±2 mV, ±3 mV, and ±6 mV maximum for the ADR291, and ±3 mV, ±4 mV, and ±6 mV maximum for the ADR292. Temperature coefficients for the three grades are 8 ppm/°C, 15 ppm/°C, and 25 ppm/°C maximum, respectively. Line regulation and load regulation are typically 30 ppm/V and 30 ppm/mA, maintaining the reference’s overall high performance. For a device with 5.0 V output, refer to the ADR293 data sheet.

The ADR291 and ADR292 references are specified over the extended industrial temperature range of −40°C to +125°C. Devices are available in the 8-lead SOIC, 8-lead TSSOP, and 3-lead TO-92 packages.

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

FEATURES and BENEFITS

  • Supply Range
    2.8 V to 15 V, ADR291
    4.4 V to 15 V, ADR292
  • Supply Current 15 µA Max
  • Low-Noise 8 µV and 12 µV p-p (0.1 Hz to
    10 Hz)
  • High Output Current 5 mA
  • Temperature Range -40ºC to +125ºC
  • Pin Compatible with REF02 / REF191

Pin Configuration Diagram for ADR292

Documentation

Title Content Type File Type
ADR291/ADR292: Low Noise Micropower 2.5 V and 4.096 V Precision Voltage References Data Sheet  (Rev F, 05/2011) (pdf, 466 kB) Data Sheets PDF
AN-713: The Effect of Long-Term Drift on Voltage References  (pdf, 237 kB) Application Notes PDF
XFET™ References
(Analog Dialogue, Vol. 32, No. 1, 1998)
Analog Dialogue HTML
RAQs index Rarely Asked Questions HTML
What do I need to know about selecting and using Voltage References? FAQs/RAQs HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
Voltage Reference Selection & Evaluation Wizard Design Calculators HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADR292 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADR292ERZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $6.20 $5.66 Y  Material Info PCN Purchase
ADR292ERZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $5.66 Y  Material Info PCN Purchase
ADR292FRZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $4.89 $2.56 Y  Material Info PCN Purchase
ADR292FRZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $2.56 Y  Material Info PCN Purchase
ADR292GRUZ Status: Production 8 ld TSSOP 8 Ind Tube, 96 $2.57 $2.37 Y  Material Info PCN Purchase
ADR292GRUZ-REEL7 Status: Production 8 ld TSSOP 8 Ind Reel, 1000 - $2.37 Y  Material Info PCN Purchase
ADR292GRZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.32 $2.09 Y  Material Info PCN Purchase
ADR292GRZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $2.09 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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