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AD7398:  Quad, Serial-Input 12-Bit DAC

Product Details


Newer Alternatives:
  • AD5324 2.5 V to 5.5 V, 500 µA Quad Voltage Output 12-Bit DAC in 10-Lead Packages
  • AD5724R Complete, Quad, 12-Bit, Serial Input, Unipolar/Bipolar Voltage Output DAC with Internal Reference

The AD7398/AD7399 family of quad, 12-bit/10-bit, voltage output digital-to-analog converters (DACs) is designed to operate from a single 3 V to 5 V supply or a dual ±5 V supply. Built with the Analog Devices, Inc. robust CBCMOS process, these monolithic DACs offer the user low cost with ease-of-use in single or dual-supply systems.

The applied external reference, VREF, determines the full-scale output voltage. Valid VREF values include VSS < VREF < VDD that result in a wide selection of full-scale outputs. For multiplying applications, ac inputs can be as large as ±5 VP.

A doubled-buffered serial-data interface offers high speed, 3-wire, SPI- and microcontroller-compatible inputs using serial data-in (SDI), clock (CLK), and a chip-select (CS). A common level-sensitive, load-DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero at system turn on. An external asynchronous reset (RS) also forces all registers to the zero code state. A programmable power-shutdown feature reduces power dissipation on unused DACs.

Both parts are offered in the same pinout, enabling users to select the appropriate resolution for their application without redesigning the layout. For 8-bit resolution applications, see the pin-compatible AD7304 product.

The AD7398/AD7399 are specified over the extended industrial (−40°C to +125°C) temperature range. Parts are available in 16-lead, wide body SOIC and ultracompact, thin, 1.1 mm TSSOP packages.

Applications

  • Automotive output voltage span
  • Portable communications
  • Digitally controlled calibration
  • PC peripherals

FEATURES and BENEFITS

  • AD7398 - 12-bit resolution
    AD7399 - 10-bit resolution
  • Programmable power shutdown
  • Single (3 V to 5 V) or dual (±5 V) supply operation
  • 3-wire, serial SPI®-compatible interface
  • Internal power-on reset
  • Double buffered registers for simultaneous multichannel DAC update
  • Four separate rail-to-rail reference inputs
  • Thin profile, TSSOP-16 package available
  • Low tempco: 1.5 ppm/°C
  • Qualified for automotive applications

Functional Block Diagram for AD7398

Similar Products

  • AD5324 2.5 V to 5.5 V, 500 µA Quad Voltage Output 12-Bit DAC in 10-Lead Packages
  • AD5724R Complete, Quad, 12-Bit, Serial Input, Unipolar/Bipolar Voltage Output DAC with Internal Reference
  • AD5624R Quad,12-Bit nanoDAC® with 5ppm/°C On-Chip Reference

OF NOTE ...

Questions? Contact the DAC Team!

Documentation

Title Content Type File Type
AD7398/AD7399: Quad, Serial-Input 12-Bit/10-Bit DACs Data Sheet  (Rev C, 01/2011) (pdf, 545 kB) Data Sheets PDF
Digital to Analog Converters ICs Solutions Bulletin  (pdf) Solutions Bulletins PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary 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.

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Price, packaging, availability

AD7398 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7398BR Status: Production 16 ld SOIC - Wide 16 Ind Tube, 47 $12.57 $11.36 N  Material Info PCN Purchase
AD7398BR-REEL Status: Production 16 ld SOIC - Wide 16 Ind Reel, 1000 - $11.36 N  Material Info PCN Purchase
AD7398BRU Status: Production 16 ld TSSOP 16 Ind Tube, 96 $12.57 $11.36 N  Material Info PCN Purchase
AD7398BRU-REEL7 Status: Production 16 ld TSSOP 16 Ind Reel, 1000 - $11.36 N  Material Info PCN Purchase
AD7398BRUZ Status: Production 16 ld TSSOP 16 Ind Tube, 96 $10.88 $9.84 Y  Material Info PCN Purchase Sample
AD7398BRUZ-REEL7 Status: Production 16 ld TSSOP 16 Ind Reel, 1000 - $9.84 Y  Material Info PCN Purchase
AD7398BRZ Status: Production 16 ld SOIC - Wide 16 Ind Tube, 47 $10.88 $9.84 Y  Material Info PCN Purchase Sample
AD7398BRZ-REEL Status: Production 16 ld SOIC - Wide 16 Ind Reel, 1000 - $9.84 Y  Material Info PCN Purchase
AD7398WBRUZ-RL7 Status: Production 16 ld SSOP 16 Ind Reel, 1000 - $10.53 Y  Material Info Notify Me 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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