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AD7845:  Complete 12-Bit CMOS Multiplying DAC

Product Details


The AD7845 is the industry's first 4-quadrant multiplying D/A converter with an on-chip amplifier. It is fabricated on the LC2MOS process, which allows precision linear components and digital circuitry to be implemented on the same chip.              

The 12 data inputs drive latches which are controlled by standard CS and WR signals, making microprocessor interfacing simple. For stand-alone operation, the CS and WR inputs can be tied to ground, making all latches transparent. All digital inputs are TTL and 5 V CMOS compatible.

The output amplifier can supply ±10 V into a 2k(ohm) load. It is internally compensated, and its input offset voltage is low due to laser trimming at wafer level. For normal operation, RFB is tied to VOUT, but the user may alternatively choose RA, RB or RC to scale the output voltage range.

FEATURES and BENEFITS

  • 12-Bit CMOS MDAC with Output Amplifier
  • 4-Quadrant Multiplication
  • Low Power LC2MOS
  • Guaranteed Monotonic (Tmin to Tmax)
  • Space-Saving 0.3" DIPS and 24- or 28- Terminal Surface Mount Packages
  • Application Resistors On Chip for Gain Ranging, etc.

Functional Block Diagram for AD7845

Documentation

Title Content Type File Type
AD7845: LC2MOS Complete 12-Bit Multiplying DAC Data Sheet (Rev B, 09/1999) (pdf, 193 kB) Data Sheets 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

AD7845 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7845AQ Status: Production CERDIP GLASS SEAL 24 Ind Tube, 15 $10.77 $10.77 N  Material Info PCN Purchase
AD7845ARZ Status: Production 24 ld SOIC - Wide 24 Comm. Tube, 31 $11.19 $9.51 Y  Material Info PCN Purchase
AD7845BQ Status: Production CERDIP GLASS SEAL 24 Ind Tube, 15 $13.80 $13.80 N  Material Info PCN Purchase
AD7845BRZ Status: Production 24 ld SOIC - Wide 24 Comm. Tube, 31 $14.33 $12.19 Y  Material Info PCN Purchase
AD7845JNZ Status: Production 24 ld PDIP 24 Comm. Tube, 15 $7.71 $6.57 Y  Material Info PCN Purchase
AD7845JP-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $7.33 N  Material Info PCN Purchase
AD7845JPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 $9.04 $9.04 Y  Material Info PCN Purchase
AD7845JPZ-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $6.98 Y  Material Info PCN Purchase
AD7845JR Status: Production 24 ld SOIC - Wide 24 Comm. Tube, 31 $9.08 $7.73 N  Material Info PCN Purchase
AD7845JRZ Status: Production 24 ld SOIC - Wide 24 Comm. Tube, 31 $7.49 $6.38 Y  Material Info PCN Purchase
AD7845JRZ-REEL Status: Production SOIC 300 MIL 24 Comm. Reel, 1000 - $6.38 Y  Material Info Notify Me Purchase
AD7845KNZ Status: Production 24 ld PDIP 24 Comm. Tube, 15 $10.89 $10.89 Y  Material Info PCN Purchase
AD7845KP Status: Obsolete PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 - - N  Material Info PCN/PDN Contact ADI
AD7845KP-REEL Status: Last Time Buy PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $9.41 N  Material Info PCN/PDN Purchase
AD7845KPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 $12.17 $12.17 Y  Material Info PCN Purchase
AD7845KR Status: Last Time Buy 24 ld SOIC - Wide 24 Comm. Tube, 31 $12.21 $10.38 N  Material Info PCN/PDN Purchase
AD7845KRZ Status: Production 24 ld SOIC - Wide 24 Comm. Tube, 31 $10.57 $8.99 Y  Material Info PCN Purchase
AD7845KRZ-REEL Status: Production 24 ld SOIC - Wide 24 Comm. Reel, 1000 - $8.99 Y  Material Info PCN Purchase
AD7845SE/883B Status: Production LCC:CER LEADLESS CHIP CARR 28 Comm. Tube, 42 $66.56 $51.38 N  Material Info PCN Purchase
AD7845SQ Status: Production CERDIP GLASS SEAL 24 Mil Tube, 15 $30.70 $30.70 N  Material Info PCN Purchase
AD7845SQ/883B Status: Production CERDIP GLASS SEAL 24 Mil Tube, 15 $39.87 $35.91 N  Material Info PCN Purchase
AD7845TQ Status: Production CERDIP GLASS SEAL 24 Mil Tube, 15 $64.00 $52.50 N  Material Info PCN Purchase
AD7845TQ/883B Status: Production CERDIP GLASS SEAL 24 Mil Tube, 15 $66.86 $61.74 N  Material Info PCN Purchase
AD785KNZ Status: Production PLASTIC DIP 24 Comm. Tube, 15 - - Y  Material Info PDN Contact ADI
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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