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  2. D/A Converters (DAC)
  3. Precision D/A Converters
  4. Voltage Output D/A Converters
  5. Single-Channel Voltage Output D/A Converters
  6. AD7845


Overview

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.

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.

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Tools & Simulations

Precision DAC Error Budget Tool

The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.

Precision DAC Error Budget Tool

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
AD7845AQ Material Declaration Reliability Data 24-Lead CerDIP (Narrow 0.3 Inch)
AD7845ARZ Material Declaration Reliability Data 24-Lead SOIC (Wide)
AD7845BQ Material Declaration Reliability Data 24-Lead CerDIP (Narrow 0.3 Inch)
AD7845BRZ Material Declaration Reliability Data 24-Lead SOIC (Wide)
AD7845JNZ Material Declaration Reliability Data 24-Lead PDIP
AD7845JPZ Material Declaration Reliability Data 28-Lead PLCC
AD7845JPZ-REEL Material Declaration Reliability Data 28-Lead PLCC
AD7845JRZ Material Declaration Reliability Data 24-Lead SOIC (Wide)
AD7845JRZ-REEL Material Declaration Reliability Data 24-Lead SOIC (Wide)
AD7845KPZ Material Declaration Reliability Data 28-Lead PLCC
AD7845KRZ Material Declaration Reliability Data 24-Lead SOIC (Wide)
AD7845KRZ-REEL Material Declaration Reliability Data 24-Lead SOIC (Wide)
AD7845SE/883B Material Declaration Reliability Data 28-Lead LCC
AD7845SQ Material Declaration Reliability Data 24-Lead CerDIP (Narrow 0.3 Inch)
AD7845SQ/883B Material Declaration Reliability Data 24-Lead CerDIP (Narrow 0.3 Inch)
AD7845TQ Material Declaration Reliability Data 24-Lead CerDIP (Narrow 0.3 Inch)
AD7845TQ/883B Material Declaration Reliability Data 24-Lead CerDIP (Narrow 0.3 Inch)
Wafer Fabrication Data

PCN-PDN Information

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Sample & Buy


Ordering FAQs


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Buy Now Pricing


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List Pricing


(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

 

Lead Times


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Sampling


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