The AD7528 is a monolithic dual 8-bit digital/analog converter featuring excellent DAC-to-DAC matching. It is available in skinny 0.3" wide 20-pin DIP's and in 20-terminal surface mount packages.
Seperate 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 AD7528'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 6800, 8080, 8085, Z80.
The device operates from a +5V to +15V power supply, dissipating only 20mW of power.
Both DAC's offer excellent four quadrant multiplication characteristics with a seperate reference input and feedback resistor for each DAC.
Digital Control of:
|Title||Content Type||File Type|
|AD7528: Military Data Sheet (Rev C, 12/2003) (pdf)||Data Sheets|
|AD7528: CMOS Dual 8-Bit Buffered Multiplying DAC Data Sheet (Rev B, 09/1998) (pdf, 188 kB)||Data Sheets|
|AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (pdf, 246 kB)||Application Notes|
|AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1 (pdf, 1295 kB)||Application Notes|
|AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design (pdf, 52 kB)||Application Notes|
AN-318: AD7528 Dual 8-Bit CMOS Multiplying DAC
(pdf, 435 kB)
This Application Note details a myriad of circuit applications made possible by the multiplying characteristics and/or resistor ladder matching characteristics of the AD7528.
AN-206: 06: CMOS Multiplying DAC Based Panning Circuit Provides Almost Constant Output Power
(pdf, 142 kB)
Audio signal processing sometimes requires splitting or "panning" a single signal source into multiple channels. This application note describes how CMOS M-DACs can control the relative signal levels of the derived channels.
AN-322: Improve Function Generators with Matched D/A Converters
(pdf, 272 kB)
AD7528 Dual 8-Bit CMOS Multiplying DAC Makes Function Generation Practical and Affordable
Choosing High-Speed Signal Processing Components for Ultrasound Systems
(Analog Dialogue, Vol. 29, No. 2, 1995)
|Digital to Analog Converters ICs Solutions Bulletin (pdf)||Solutions Bulletins|
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
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.
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