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AD5678:  4 x 12-Bit and 4 × 16-Bit Octal D/A Converter with On-Chip Reference in 14-Lead TSSOP

Product Details


The AD5678 is a low power, octal, buffered voltage-output DAC with four 12-bit DACs and four 16-bit DACs in a single package. All devices operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design.

The AD5678 has an on-chip reference with an internal gain of 2. The AD5678-1 has a 1.25 V 5 ppm/°C reference, giving a full-scale output of 2.5 V; the AD5678-2 has a 2.5 V 5 ppm/°C reference, giving a full-scale output of 5 V. The on-board reference is off at power-up, allowing the use of an external reference. The internal reference is enabled via a software write.

The part incorporates a power-on reset circuit that ensures that the DAC output powers up to 0 V and remains powered up at this level until a valid write takes place. The part contains a power-down feature that reduces the current consumption of the device to 400 nA at 5 V and provides software-selectable output loads while in power-down mode for any or all DAC channels.

The outputs of all DACs can be updated simultaneously using the LDAC function, with the added functionality of user-selectable DAC channels to simultaneously update. There is also an asynchronous CLR that clears all DACs to a software-selectable code—0 V, midscale, or full scale.

The AD5678 utilizes a versatile 3-wire serial interface that operates at clock rates of up to 50 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The on-chip precision output amplifier enables rail-to-rail output swing.

Product Highlights
  1. Octal DAC (four 12-bit DACs and four 16-bit DACs).
  2. On-chip 1.25 V/2.5 V, 5 ppm/°C reference.
  3. Available in 14-lead/16-lead TSSOP.
  4. Power-on reset to 0 V.
  5. Power-down capability. When powered down, the DAC typically consumes 200 nA at 3 V and 400 nA at 5 V
Applications

  • Process control
  • Data acquisition systems
  • Portable battery-powered instruments
  • Digital gain and offset adjustment
  • Programmable voltage current sources
  • Programmable attenuators

FEATURES and BENEFITS

  • Low power octal DAC with
    Four 16-bit DACs
    Four 12-bit DACs
  • 14-lead/16-lead TSSOP
  • On-chip 1.25 V/2.5 V, 5 ppm/°C reference
  • Power down to 400 nA @ 5 V, 200 nA @ 3 V
  • 2.7 V to 5.5 V power supply
  • Guaranteed monotonic by design
  • Power-on reset to zero scale
  • 3 power-down functions
  • Hardware LDAC and LDAC override function
  • CLR function to programmable code
  • Rail-to-rail operation

AD5678 Functional Block Diagram

Similar Products

  • AD5308: 2.5 V to 5.5 V Octal Voltage Output 8-Bit DACs in 16-Lead TSSOP
  • AD5318: 2.5 V to 5.5 V Octal Voltage Output 10-Bit DACs in 16-Lead TSSOP
  • AD5328: 2.5 V to 5.5 V Octal Voltage Output 12-Bit DACs in 16-Lead TSSOP
More

Documentation

Title Content Type File Type
AD5678: 4 x 12-Bit and 4 x 16-Bit Octal DAC with On-Chip Reference in 14 Lead TSSOP Data Sheet (Rev C, 02/2011) (pdf, 888 kB) Data Sheets PDF
Digital to Analog Converters ICs Solutions Bulletin  (pdf) Solutions Bulletins PDF
Extending the denseDAC™ Multichannel D/As  (pdf, 1100 kB)
denseDAC multichannel D/As are Analog Devices digital-to-analog converters with 8 to 40 channels, offering 12-bit to 16-bit resolution.
Overview 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

AD5678 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD5678ARUZ-2 Status: Production 16 ld TSSOP 16 Ind Tube, 96 $11.75 $9.99 Y  Material Info PCN Purchase Sample
AD5678ARUZ-2REEL7 Status: Production 16 ld TSSOP 16 Ind Reel, 1000 - $9.99 Y  Material Info PCN Purchase
AD5678BRUZ-1 Status: Production 14 ld TSSOP 14 Ind Tube, 96 $13.52 $11.49 Y  Material Info PCN Purchase Sample
AD5678BRUZ-1REEL7 Status: Production 14 ld TSSOP 14 Ind Reel, 1000 - $11.49 Y  Material Info PCN Purchase
AD5678BRUZ-2 Status: Production 16 ld TSSOP 16 Ind Tube, 96 $13.52 $11.49 Y  Material Info PCN Purchase Sample
AD5678BRUZ-2REEL7 Status: Production 16 ld TSSOP 16 Ind Reel, 1000 - $11.49 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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