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REF194:  4.5V 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

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

Pin Configuration Diagram for REF194

Design Tools,Models,Drivers & Software

Title Content Type File Type
Voltage Reference Selection & Evaluation Wizard Design Calculators HTML
REF194 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.

Product Recommendations & Reference Designs

Engineered. Tested. Ready to Integrate.
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Price, packaging, availability

REF194 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
REF194ESZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.38 $2.37 Y  Material Info PCN Purchase
REF194ESZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $2.37 Y  Material Info PCN Purchase
REF194GS-REEL Status: Last Time Buy 8 ld SOIC 8 Ind Reel, 2500 - $1.59 N  Material Info PCN/PDN Purchase
REF194GSZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.46 $1.44 Y  Material Info PCN Purchase
REF194GSZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.44 Y  Material Info PCN Purchase
REF194GSZ-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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