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REF195:  5.0V Precision Micropower, Low Dropout, Low Voltage Reference

Product Details

The REF19x series precision band gap voltage references use a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy.

The REF19x series is made up of micropower, low dropout voltage (LDV) devices, providing stable output voltage from supplies as low as 100 mV above the output voltage and consuming less than 45 μA of supply current. In sleep mode, which is enabled by applying a low TTL or CMOS level to the SLEEP pin, the output is turned off and supply current is further reduced to less than 15 μA.

The REF19x series references are specified over the extended industrial temperature range (−40°C to +85°C) with typical performance specifications over −40°C to +125°C for applications, such as automotive.

All electrical grades are available in an 8-lead SOIC package; the PDIP and TSSOP packages are available only in the lowest electrical grade.

Applications

  • Portable instruments
  • ADCs and DACs
  • Smart sensors
  • Solar powered applications
  • Loop-current-powered instruments
  • Data Sheet, Rev. J, 3/08

    FEATURES and BENEFITS

    • Initial Accuracy: ±2 mV Max
    • Temperature Coefficient: 5 ppm/°C Max
    • Low Supply Current: 45 µA Max
    • Sleep Mode: 15 µA Max
    • Low Dropout Voltage
    • Load Regulation: 4 ppm/mA
    • Line Regulation: 4 ppm/V
    • High Output Current: 30 mA
    • Short-Circuit Protection

    SOIC/TSSOP Pin Configuration for REF195

    Documentation

    Title Content Type File Type
    REF19x Series: Precision Micropower, Low Dropout Voltage References Data Sheet (Rev L, 09/2011) (pdf, 694 kB) Data Sheets PDF
    AN-713: The Effect of Long-Term Drift on Voltage References  (pdf, 237 kB) Application Notes PDF
    AN-349: Keys to Longer Life for CMOS  (pdf, 89 kB)
    Here's How CMOS Can be Protected Against Abuse
    Application Notes PDF
    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
    Voltage Reference Wizard (downloadable)
    This Wizard helps you select the most suitable voltage for a use with a data converter. Supply the Wizard with a given data converter; it will provide you with a number of suitable references plus the maximum DC error contributed to your overall system. Or enter the amount of DC error your system can tolerate and find out which of ADI’s reference and data converter pairs will meet your requirement.
    Design Calculators HTML
    REF195 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

    REF195 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    REF195ES Status: Last Time Buy 8 ld SOIC 8 Ind Tube, 98 - - N  Material Info PCN/PDN Contact ADI
    REF195ESZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.38 $2.37 Y  Material Info PCN Purchase
    REF195ESZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $2.37 Y  Material Info PCN Purchase
    REF195FS Status: Last Time Buy 8 ld SOIC 8 Ind Tube, 98 - - N  Material Info PCN/PDN Contact ADI
    REF195FS-REEL Status: Last Time Buy 8 ld SOIC 8 Ind Reel, 2500 - - N  Material Info PCN/PDN Contact ADI
    REF195FSZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.85 $1.84 Y  Material Info PCN Purchase
    REF195FSZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 $1.85 $1.84 Y  Material Info PCN Purchase
    REF195GPZ Status: Production 8 ld PDIP 8 Ind Tube, 50 $1.33 $1.31 Y  Material Info PCN Purchase
    REF195GRUZ Status: Production 8 ld TSSOP 8 Ind Tube, 96 $1.69 $1.66 Y  Material Info PCN Purchase Sample
    REF195GRUZ-REEL7 Status: Production 8 ld TSSOP 8 Ind Reel, 1000 - $1.66 Y  Material Info PCN Purchase
    REF195GS Status: Last Time Buy 8 ld SOIC 8 Ind Tube, 98 - - N  Material Info PCN/PDN Contact ADI
    REF195GSZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.46 $1.44 Y  Material Info PCN Purchase Sample
    REF195GSZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.44 Y  Material Info PCN Purchase
    REF195GSZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.44 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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