AD7549

NOT RECOMMENDED FOR NEW DESIGNS

12-Bit, Dual, Multiplying, I_OUT D/A Converter

Data Sheet (Rev. A) Product Selection Table

Part Models: 7
1ku List Price: Starting From $40.51

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Overview

Two Double Bufered 12-bit DACs
4-Quadrant Multiplication
Low Gain Error (3 LSBs max)
DAC Ladder Resistance Matching: 1%

Space Saving Skinny DIP and Surface Mount Packages
Latch-Up Proof
Extended Temperature Range Operation

The AD7549 is a monolithic dual, 12-bit, current output D/A converter. It is packaged in both 0.3" wide 20-pin DIPs and in 20-terminal surface mount packages. Both DACs provide four quadrant multiplication capabilities with a separate reference input and feedback resistor for each DAC. The monolithic construction ensures excellent thermal tracking and gain error tracking between the two DACs.

The DACs in the AD7549 are each loaded in three 4-bit nibbles. The control logic is designed for easy processor interfacing. Input and DAC register loading is accomplished using address lines A0, A1, A2, and CS, WR lines. A logic high level on the CLR input clears all registers. Both DACs may be simultaneously update using the UPD input.

APPLICATIONS

Programmable Filters
Automatic test equipment
Microcomputer based process control
Audio systems
Programmable power supplies
Synchro Applications

Part Models: 7
1ku List Price: Starting From $40.51

Documentation

Data Sheet 2

AD7549: LC²MOS Dual 12-Bit µP-Compatible DAC Scanned Data Sheet (Rev.A) 06/25/2015

AD7549: Military Data Sheet 01/01/2000

Application Note 8

AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1 10/15/2004

AN-326: Interfacing the AD7549 to the MCS-48 and MCS-51 Microcomputer Families 09/30/2002

AN-225: 12-Bit Voltage-Output DACs for Single-Supply 5V and 12V Systems 01/01/2000

AN-209: 8th Order Programmable Low-Pass Analog Filter Using Dual 12-Bit CMOS Multiplying DACs 01/01/2000

AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design 09/26/2002

AN-325: 12-Bit Analog I/O Port Uses AD7549 Dual 12-Bit DAC and 8051 Microcomputer 09/30/2002

AN-206: CMOS Multiplying DAC Based Panning Circuit Provides Almost Constant Output Power 01/01/2000

AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC 08/07/2023

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 Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
5962-8876502RX	20-Lead CerDIP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7549BQ	20-Lead CerDIP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7549JNZ	20-Lead PDIP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7549JPZ	20-Lead Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7549JPZ-REEL	20-Lead Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7549KNZ	20-Lead PDIP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7549KPZ	20-Lead Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 9, 2018 - 16_0026 Qualify TeamQuest Technology, Inc. for Burn-in and Life Test of Military and Aerospace Devices
		PCN16_0026_Form Material_Report Qualification Results Summary
5962-8876502RX
Nov 7, 2012 - 12_0199 Qualification of New Conductive Silver-Filled Glass Die Attach Adhesive for Cerdip and Ceramic Flatpack (Cerpack) Packages.
		PCN12_0199_Form Material_Report Qualification Report Summary Datasheet Specification Comparison
5962-8876502RX
AD7549BQ
Nov 9, 2011 - 11_0050 Transfer of ADI Hermetics Assembly location from Paranaque, Manila to General Trias, Cavite Philippines
		PCN11_0050_Form Material_Report
5962-8876502RX
AD7549BQ
Nov 9, 2011 - 11_0182 Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines
		PCN11_0182_Form Material_Report
5962-8876502RX
AD7549BQ
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.
		PCN04_0080_Form Material_Report Reliability Report Reliability Report
5962-8876502RX
AD7549BQ
AD7549JNZ	PRODUCTION
AD7549JPZ	PRODUCTION
AD7549KNZ	PRODUCTION
Mar 7, 2019 - 19_0046 Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek
		PCN19_0046_Form Material_Report Detailed Change Description Qualification Results Summary
AD7549JNZ	PRODUCTION
AD7549KNZ	PRODUCTION
Aug 19, 2009 - 07_0024 Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad
		Material_Report Material_Report Parts List PCN07_0024_Form Qual Data
AD7549JNZ	PRODUCTION
AD7549KNZ	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
AD5405	PRODUCTION	Dual 12-Bit, High Bandwidth, Multiplying DAC with 4 Quadrant Resistors and Parallel Interface

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.

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