AD7628

PRODUCTION

CMOS Dual 8-Bit Buffered Multiplying DAC

Data Sheet (Rev. A) Product Selection Table

Part Models: 5
1ku List Price: Starting From $5.20

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Overview

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)

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

Part Models: 5
1ku List Price: Starting From $5.20

Documentation

Data Sheet 1

AD7628: CMOS Dual 8-Bit Buffered Multiplying DAC Data Sheet (Rev.A) 12/10/1986

Application Note 3

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

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

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
AD7628KNZ	20-Lead PDIP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7628KPZ	20-Lead Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7628KPZ-REEL	20-Lead Flatpack	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7628KRZ	20-Lead SOIC (Wide)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7628KRZ-REEL	20-Lead SOIC (Wide)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

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
AD7628KNZ	PRODUCTION
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
AD7628KNZ	PRODUCTION
AD7628KPZ	PRODUCTION
AD7628KPZ-REEL	PRODUCTION
AD7628KRZ	PRODUCTION
AD7628KRZ-REEL	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
AD7628KNZ	PRODUCTION
Jul 21, 2014 - 13_0297 Qualification of ASE Chungli, as an Alternate Assembly Site for Select 16L, 20L, 24L and 28L SOICW Packages
		PCN13_0297_Form Material_Report Detailed Change Description Qualification Results Summary
AD7628KRZ	PRODUCTION
AD7628KRZ-REEL	PRODUCTION
Aug 4, 2010 - 10_0117 Halogen Free Material Change for SOIC_W Products at Carsem
		PCN10_0117_Form Material_Report Reliability Report
AD7628KRZ	PRODUCTION
AD7628KRZ-REEL	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
AD5428	PRODUCTION	Dual 8-Bit, High Bandwidth Multiplying DACs with 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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