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ADG819:  0.5 Ω CMOS 1.8 V to 5.5 V 2:1 Mux/SPDT Switch with BBM Switching Action

Product Details

The ADG819 is a monolithic, CMOS SPDT (single pole, double throw) switch. This switch is designed on a submicron process, that provides low power dissipation yet gives high switching speed, low On Resistance and low leakage currents. Low-power consumption and operating supply range of +1.8 V to +5.5 V make the ADG819 ideal for battery-powered, portable instruments.

Each switch of the ADG819 conducts equally well in both directions when on. The ADG819 exhibits break-before- make switching action, thus preventing momentary shorting when switching channels. (See the ADG820 for a switch exhibiting make-before-break action.)

The ADG819 is available in a 6-lead SOT-23 package and an 8-lead µSOIC package as well as a 2x3 array MicroCSP package. This chip occupies only a 2.18mm x 1.14mm area, thus making it the ideal candidate for space-constrained applications.


  • Low On Resistance 0.8 O Max at 125°C
  • 0.25 Ω Max On-Resistance Flatness
  • +1.8 V to +5.5 V Single Supply
  • 200 mA Current Carrying Capability
  • Automotive Temperature Range: -40°C to +125°C
  • Rail-to-Rail Operation
  • 6-Lead SOT-23 Package, 8-Lead µSOIC
    Package, and 6-Bump MicroCSP (Micro
    Chip Scale Package)
  • Fast Switching Times
  • Typical Power Consumption (<0.01 µW)
  • TTL/CMOS Compatible Inputs
  • Pin Compatible with the ADG719

Functional Block Diagram for ADG819


Title Content Type File Type
ADG819: 0.5 Ω, CMOS, 1.8 V to 5.5 V, 2:1 Mux/SPDT Switch Datasheet (Rev A, 05/2012) (pdf, 232 kB) Data Sheets PDF
AN-617: MicroCSP Wafer Level Chip Scale Package  (pdf, 276 kB) Application Notes PDF
Data-acquisition system uses fault protection
By Catherine Redmond, Analog Devices, Inc. (EDN, 4/15/2004)
Technical Articles HTML
CMOS Switches Offer High Performance in Low Power, Wideband Applications  (pdf, 320 kB)
by Theresa Corrigan and Ray Goggin, Analog Devices, Inc. (High Frequency Electronics, February 2004)
Technical Articles PDF
Temperature monitor measures three thermal zones
by Susan Pratt, Analog Devices, Inc. (EDN, 12/11/03)
Technical Articles HTML
Enhanced Multiplexing for MEMS Optical Cross Connects
by James Caffrey (Fiberoptic Product News, 8/2003)
Technical Articles HTML
analogZONE Reviews the ADG819  (htm)
(analogZONE 4/2003)
Technical Articles HTM
Switches and Multiplexers Product Selection Guide  (pdf, 1462 kB) Product Selection Guide PDF
Switch Parametric Search Product Selection Guide HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADG819 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

ADG819 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADG819BCBZ-REEL Status: Last Time Buy 6 Ball WLCSP 6 Ind Reel, 10000 - - Y  Material Info PCN/PDN Purchase
ADG819BCBZ-REEL7 Status: Production 6 Ball WLCSP 6 Ind Reel, 3000 - $0.95 Y  Material Info PCN Purchase
ADG819BRM Status: Last Time Buy 8 ld MSOP 8 Ind Tube, 50 $1.31 $1.08 N  Material Info PCN/PDN Purchase
ADG819BRM-REEL Status: Last Time Buy 8 ld MSOP 8 Ind Reel, 3000 - $1.08 N  Material Info PCN/PDN Purchase
ADG819BRMZ Status: Production 8 ld MSOP 8 Ind Tube, 50 $1.14 $0.94 Y  Material Info PCN Purchase Sample
ADG819BRMZ-REEL7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.94 Y  Material Info PCN Purchase
ADG819BRT-500RL7 Status: Production 6 ld SOT-23 6 Ind Reel, 500 - $1.04 N  Material Info PCN Purchase
ADG819BRT-REEL7 Status: Production 6 ld SOT-23 6 Ind Reel, 3000 - $1.04 N  Material Info PCN Purchase
ADG819BRTZ-500RL7 Status: Production 6 ld SOT-23 6 Ind Reel, 500 - $0.95 E  Material Info PCN Purchase Sample
ADG819BRTZ-REEL Status: Production 6 ld SOT-23 6 Ind Reel, 10000 - $0.95 E  Material Info PCN Purchase
ADG819BRTZ-REEL7 Status: Production 6 ld SOT-23 6 Ind Reel, 3000 - $0.95 E  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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