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AD7945:  +3.3 V/+5 V Multiplying 12-Bit DAC With a Parallel Interface

Product Details


Newer Alternatives: NEW DESIGNS:
AD5445 High Bandwidth CMOS 12-Bit Parallel Interface Multiplying D/A Converter

The AD7943, AD7945 and AD7948 are fast 12-bit multiplying DACs that operate from a single +5 V supply (Normal Mode) and a single +3.3 V to +5 V supply (Biased Mode). The AD7943 has a serial interface, the AD7945 has a 12-bit parallel interface, and the AD7948 has an 8-bit byte interface. They will replace the industry-standard AD7543, AD7545 and AD7548 in many applications, and they offer superior speed and power consumption performance.

The AD7943 is available in 16-pin DIP, 16-pin SOP (Small Outline Package) and 20-pin SSOP (Shrink Small Outline Package).

The AD7945 is available in 20-pin DIP, 20-pin SOP and 20-pin SSOP.

The AD7948 is available in 20-pin DIP, 20-pin SOP and 20-pin SSOP.

FEATURES and BENEFITS

  • 12-Bit Multiplying DACs
  • 0.5 LSBs INL and DNL
  • Fast Interface:
    40 ns Strobe Pulsewidth (AD7943)
    40 ns Write Pulsewidth (AD7945, A7948)
  • Guaranteed Specifications wth +3.3 V/+5 Supply
  • Low Power: 5 µW typ
  • Low Glitch: 60 nV-s with Amplifier Connected
  • Fast Settling: 600 ns to 0.01% with AD843

Functional Block Diagram for AD7945

Similar Products

  • AD5445 High Bandwidth CMOS 12-Bit Parallel Interface Multiplying D/A Converter
  • AD5447 Dual 12-Bit, High Bandwidth Multiplying DACs with Parallel Interface
  • AD5452 12-Bit High Bandwidth Multiplying DACs with Serial Interface
  • AD5444 12-Bit High Bandwidth Multiplying DAC with Serial Interface including a Serial Data Output line
  • AD5443 High Bandwidth CMOS 12-Bit Serial Interface Multiplying D/A Converter
  • AD7948 +3.3 V/+5 V Multiplying 12-Bit DAC With an 8-Bit Byte Interface
  • AD7943 +3.3 V/+5 V Multiplying 12-Bit DAC With a Serial Interface

Documentation

Title Content Type File Type
AD7943/AD7945/AD7948: +3.3 V/+5 V Multiplying 12-Bit DACs Data Sheet  (Rev B, 09/2002) (pdf, 329 kB) Data Sheets 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.

SampleSample & Buy

Price, packaging, availability

AD7945 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7945ANZ-B Status: Production 20 ld PDIP 20 Ind Tube, 18 $4.85 $4.12 Y  Material Info PCN Purchase
AD7945ARS-B Status: Production 20 ld SSOP 20 Ind Tube, 66 $5.44 $4.62 N  Material Info PCN Purchase
AD7945ARS-BREEL Status: Last Time Buy 20 ld SSOP 20 Ind Reel, 1500 - $4.62 N  Material Info PCN/PDN Purchase
AD7945ARSZ-B Status: Production 20 ld SSOP 20 Comm. Tube, 66 $4.71 $4.00 Y  Material Info PCN Purchase
AD7945ARSZ-BREEL Status: Production 20 ld SSOP 20 Comm. Reel, 1500 - $4.00 Y  Material Info PCN Purchase
AD7945BN Status: Production 20 ld PDIP 20 Ind Tube, 18 $5.60 $4.76 N  Material Info PCN Purchase
AD7945BNZ Status: Production 20 ld PDIP 20 Ind Tube, 18 $4.85 $4.12 Y  Material Info PCN Purchase
AD7945BR Status: Production 20 ld SOIC - Wide 20 Ind Tube, 37 $5.44 $4.62 N  Material Info PCN Purchase
AD7945BR-REEL Status: Production 20 ld SOIC - Wide 20 Ind Reel, 1000 - $4.62 N  Material Info PCN Purchase
AD7945BRS Status: Production 20 ld SSOP 20 Ind Tube, 66 $5.44 $4.62 N  Material Info PCN Purchase
AD7945BRS-REEL Status: Production 20 ld SSOP 20 Ind Reel, 1500 - $4.62 N  Material Info PCN Purchase
AD7945BRSZ Status: Production 20 ld SSOP 20 Comm. Tube, 66 $4.71 $4.00 Y  Material Info PCN Purchase Sample
AD7945BRSZ-REEL Status: Production 20 ld SSOP 20 Comm. Reel, 1500 - $4.00 Y  Material Info PCN Purchase
AD7945BRZ Status: Production 20 ld SOIC - Wide 20 Comm. Tube, 37 $4.71 $4.00 Y  Material Info PCN Purchase
AD7945BRZ-REEL Status: Production 20 ld SOIC - Wide 20 Comm. Reel, 1000 - $4.00 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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