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.
|Title||Content Type||File Type|
|AD7628: CMOS Dual 8-Bit Buffered Multiplying DAC Data Sheet (Rev A, 03/1988) (pdf, 193 kB)||Data Sheets|
|AN-932: Power Supply Sequencing (pdf, 95 kB)||Application Notes|
|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|
Space Qualified Parts List
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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.
|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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