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AD1580:  1.2 V Micropower, Precision Shunt Voltage Reference

Product Details

The AD1580 is a low cost, 2-terminal (shunt), precision band gap reference. It provides an accurate 1.225 V output for input currents between 50 μA and 10 mA.

The superior accuracy and stability of the AD1580 is made possible by the precise matching and thermal tracking of on-chip components. Proprietary curvature correction design techniques have been used to minimize the nonlinearities in the voltage output temperature characteristics. The AD1580 is stable with any value of capacitive load.

The low minimum operating current makes the AD1580 ideal for use in battery-powered 3 V or 5 V systems. However, the wide operating current range means that the AD1580 is extremely versatile and suitable for use in a wide variety of high current applications.

The AD1580 is available in two grades, A and B, both of which are provided in the SOT-23 and SC70 packages, the smallest surface-mount packages available. Both grades are specified over the industrial temperature range of −40°C to +85°C.


  • Portable, battery-powered equipment
    Cellular phones, notebook computers, PDAs, GPSs, and DMMs
  • Computer workstations
  • Suitable for use with a wide range of video RAMDACs
  • Smart industrial transmitters
  • PCMCIA cards
  • Automotive
  • 3 V/5 V, 8-bit to 12-bit data converters


  • Wide operating range: 50 µA to 10 mA
  • Initial accuracy: ±0.1% maximum
  • Temperature drift: ±50 ppm/°C maximum
  • Output impedance: 0.5 Ω maximum
  • Wideband noise (10 Hz to 10 kHz): 20 µV rms
  • Operating temperature range: –40°C to +85°C
  • High ESD rating
    4 kV human body model
    400 V machine model
  • Compact, surface-mount SOT-23 and SC70 packages

Pin Configuration Diagram for AD1580


Title Content Type File Type
AD1580: 1.2 V Micropower, Precision Shunt Voltage Reference Data Sheet (Rev F, 07/2011) (pdf, 553 kB) Data Sheets PDF
AN-713: The Effect of Long-Term Drift on Voltage References  (pdf, 237 kB) Application Notes PDF
Avoiding Op-Amp Instability Problems In Single-Supply Applications
(Analog Dialogue, Vol. 35, No. 2, March-May, 2001)
Analog Dialogue HTML
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
AD1580 SPICE Macro-Model SPICE Models 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

AD1580 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD1580ART-REEL Status: Last Time Buy 3 ld SOT-23 3 Ind Reel, 10000 - $0.75 N  Material Info PCN/PDN Purchase
AD1580ARTZ-REEL7 Status: Production 3 ld SOT-23 3 Ind Reel, 3000 - $0.62 Y  Material Info PCN Purchase
AD1580BKSZ-REEL Status: Production 3 ld SC70 3 Ind Reel, 10000 - $0.93 Y  Material Info PCN/PDN Purchase
AD1580BKSZ-REEL7 Status: Production 3 ld SC70 3 Ind Reel, 3000 - $0.93 Y  Material Info PCN Purchase
AD1580BRT-REEL7 Status: Production 3 ld SOT-23 3 Ind Reel, 3000 - $0.97 N  Material Info PCN Purchase
AD1580BRTZ-R2 Status: Production 3 ld SOT-23 3 Ind Reel, 250 $1.17 $1.17 Y  Material Info Notify Me Purchase
AD1580BRTZ-REEL7 Status: Production 3 ld SOT-23 3 Ind Reel, 3000 - $0.86 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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