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AD7302:  2.7 V to 5.5 V, Parallel Input Dual Voltage Output 8-Bit DAC

Product Details


The AD7302 is a dual, 8-bit voltage out DAC that operates from a single +2.7 V to +5.5 V supply. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. The AD7302 has a parallel microprocessor and DSP-compatible interface with high speed registers and double buffered interface logic. Data is loaded to the registers on the rising edge of CS or WR and the A/B pin selects either DAC A or DAC B.

Reference selection for AD7302 can be either an internal reference derived from the VDD or an external reference applied at the REFIN pin. Both DACs can be simultaneously updated using the asynchronous LDAC input and can be cleared by using the asynchronous CLR input.

The low power consumption of this part makes it ideally suited to portable battery operated equipment. The power consumption is less than 10 mW at 3.3 V, reducing to 3 µW in powerdown mode.

The AD7302 is available in a 20-pin plastic dual-in-line package, 20-lead SOIC and a 20-lead TSSOP package.

FEATURES and BENEFITS

  • Two 8-Bit DACs in One Package
  • 20-Lead DIP/SOIC/TSSOP Package
  • +2.7 V to +5.5 V Operation
  • Internal and External Reference Capability
  • DAC Power-Down Function
  • Parallel Interface
  • On-Chip Output Buffer Rail-to-Rail Operation
  • Low power Operation 3 mA max @ 3.3 V
  • Power-Down to 1 µA max @ 25°C

Functional Block Diagram for AD7302

AD7302 Diagram
Functional Block Diagram for AD7302

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

AD7302 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7302BNZ Status: Production 20 ld PDIP 20 Ind Tube, 18 $2.68 $2.08 Y  Material Info PCN Purchase
AD7302BRUZ Status: Production 20 ld TSSOP 20 Comm. Tube, 75 $2.60 $2.02 Y  Material Info PCN Purchase Sample
AD7302BRUZ-REEL Status: Production 20 ld TSSOP 20 Comm. Reel, 2500 - $2.02 Y  Material Info PCN Purchase
AD7302BRUZ-REEL7 Status: Production 20 ld TSSOP 20 Comm. Reel, 1000 - $2.02 Y  Material Info PCN Purchase
AD7302BRZ Status: Production 20 ld SOIC - Wide 20 Comm. Tube, 37 $2.60 $2.02 Y  Material Info PCN Purchase Sample
AD7302BRZ-REEL Status: Production 20 ld SOIC - Wide 20 Comm. Reel, 1000 - $2.02 Y  Material Info PCN Purchase
AD7302BRZ-REEL7 Status: Production 20 ld SOIC - Wide 20 Comm. Reel, 400 - $2.02 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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