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AD7628:  CMOS Dual 8-Bit Buffered Multiplying DAC

Product Details


Newer Alternatives: NEW DESIGNS:
AD5428 Dual 8-Bit, High Bandwidth Multiplying DACs with Parallel Interface

The AD7628 is a monolithic dual 8-bit digital/analog converter featuring excellent DAC-to-DAC matching. It is available in small 0.3" wide 20-pin DIPs and in 20-terminal surface mount packages.

Separate on-chip latches are provided for each DAC to allow easy microprocessor interface.

Data is transferred into either of the two DAC data latches via a common 8-bit TTL/CMOS compatible input port. Control input DAC A/DAC B determines which DAC is to be loaded. The AD7628's load cycle is similar to the write cycle of a random access memory, and the device is bus compatible with most 8-bit microprocessors, including 6502, 6809, 8085, Z80.

The device operates from a +12 V to +15 V power supply and is TTL-compatible over this range. Power dissipation is a low 20 mW.

Both DACs offer excellent four quadrant multiplication characteristics with a separate reference input and feedback resistor for each DAC.

APPLICATIONS

  • Disk Drives
  • Programmable Filters
  • X-Y Graphics
  • Gain/Attenuation

FEATURES and BENEFITS

  • On-Chip Latches for both DACs
  • +12 V to +15 V Operation
  • DACs matched to 1%
  • Four Quadrant Multiplication
  • TTL/CMOS Compatible from +12 V to +15 V
  • Latch Free (Protection Schottkys not Required)

Functional Block Diagram for AD7628

Similar Products

  • AD5428 Dual 8-Bit, High Bandwidth Multiplying DACs with Parallel Interface
  • AD5429 Dual 8-Bit, High Bandwidth, Multiplying DAC with Serial Interface
  • AD5439 Dual 10-Bit, High Bandwidth, Multiplying DAC with Serial Interface
  • AD5405 Dual 12-Bit, High Bandwidth, Multiplying DAC with 4 Quadrant Resistors and Parallel Interface
  • AD5447 Dual 12-Bit, High Bandwidth, Multiplying DACs with Parallel Interface

Documentation

Title Content Type File Type
AD7628: CMOS Dual 8-Bit Buffered Multiplying DAC Data Sheet (Rev A, 03/1988) (pdf, 193 kB) Data Sheets PDF
AN-932: Power Supply Sequencing  (pdf, 95 kB) Application Notes PDF
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC  (pdf, 246 kB) Application Notes PDF
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1  (pdf, 1295 kB) Application Notes PDF
AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design  (pdf, 52 kB) Application Notes PDF
Space Qualified Parts List  (pdf, 93 kB)
This document lists 67 (240+) space level products that are available from Analog Devices. Many of the products listed are state-of-the-art data conversion and signal processing products that were previously only available as commercial or military Class B products. Through our Space Products Group and MIL-PRF-38535 certified Level V (Class S) facility, we are pleased to offer these products to the space marketplace.
Aerospace Information 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

AD7628 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7628KN Status: Production 20 ld PDIP 20 Comm. Tube, 18 $3.08 $2.65 N  Material Info PCN Purchase
AD7628KNZ Status: Production 20 ld PDIP 20 Comm. Tube, 18 $2.80 $2.41 Y  Material Info PCN Purchase
AD7628KP-REEL Status: Production 20 ld PLCC 20 Comm. Reel, 1000 $2.87 $2.87 N  Material Info PCN Purchase
AD7628KPZ Status: Production 20 ld PLCC 20 Comm. Tube, 49 $2.87 $2.87 Y  Material Info PCN Purchase
AD7628KPZ-REEL Status: Production 20 ld PLCC 20 Comm. Reel, 1000 $2.87 $2.87 Y  Material Info PCN Purchase
AD7628KRZ Status: Production 20 ld SOIC - Wide 20 Comm. Tube, 37 $2.73 $2.73 Y  Material Info PCN Purchase
AD7628KRZ-REEL Status: Production 20 ld SOIC - Wide 20 Comm. Reel, 1000 - $2.34 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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