Part # AD7628 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD7628 CMOS Dual 8-Bit Buffered Multiplying DAC

Part Details:

a CMOS Dual 8-Bit Buffered Multiplying DAC AD7628 FEATURES FUNCTIONAL BLOCK DIAGRAM On-Chip Latches for Both DACs+12 V to +15 V OperationDACs Matched to 1%Four Quadrant MultiplicationTTL/CMOS Compatible from +12 V to +15 VLatch Free (Protection Schottkys not Required) APPLICATIONSDisk DrivesProgrammable FiltersX-Y GraphicsGain/Attenuation GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The AD7628 is a monolithic dual 8-bit digital/analog converter 1. DAC to DAC matching: since both of the AD7628 DACs featuring excellent DAC-to-DAC matching. It is available in are fabricated at the same time on the same chip, precise small 0.3" wide 20-pin DIPs and in 20-terminal surface mount matching and tracking between DAC A and DAC B is inher- packages. ent. The AD7628 s matched CMOS DACs make a whole Separate on-chip latches are provided for each DAC to allow new range of applications circuits possible, particularly in the easy microprocessor interface. audio, graphics and process control areas. Data is transferred into either of the two DAC data latches via a 2. Small package size: combining the inputs to the on-chip common 8-bit TTL/CMOS compatible input port. Control in- DAC latches into a common data bus and adding a DAC A/ put DAC A/DAC B determines which DAC is to be loaded. DAC B select line has allowed the AD7628 to be packaged in The AD7628 s load cycle is similar to the write cycle of a ran- a small 20-pin 0.3" wide DIP, 20-pin SOIC, 20-terminal dom access memory, and the device is bus compatible with most PLCC and 20-terminal LCC. 8-bit microprocessors, including 6502, 6809, 8085, Z80. 3. TTL-Compatibility: All digital inputs are TTL-compatible The device operates from a +12 V to +15 V power supply and is over a +12 V to +15 V power supply range. TTL-compatible over this range. Power dissipation is a low20 mW. Both DACs offer excellent four quadrant multiplication charac-teristics with a separate reference input and feedback resistor foreach DAC. REV. A Information furnished by Analog Devices is believed to be accurate andreliable. However, no responsibility is assumed by Analog Devices for itsuse, nor for any infringements of patents or other rights of third parties One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. which may result from its use. No license is granted by implication or Tel: 617/329-4700 World Wide Web Site: otherwise under any patent or patent rights of Analog Devices. Fax: 617/326-8703 © Analog Devices, Inc., 1996 AD7628­SPECIFICATIONS (VDD = +10.8 V to +15.75 V, VREF A = VREF B = +10 V; OUT A = OUT B = 0 V unless otherwise noted) TA = ­40 C TA = ­55 C Parameter TA = +25 C1 to +85 C

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AD7628.pdf Datasheet