REV. C

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a

AD7545A

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© Analog Devices, Inc., 2000

CMOS 12-Bit

Buffered Multiplying DAC

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Improved Version of AD7545

Fast Interface Timing

All Grades 12-Bit Accurate

20-Lead DIP and Surface Mount Packages

Low Cost

PIN CONFIGURATIONS

DIP/SOIC

LCCC

PLCC

GENERAL DESCRIPTION

The AD7545A, a 12-bit CMOS multiplying DAC with internal

data latches, is an improved version of the industry standard

AD7545. This new design features a

WR pulse width of 100 ns,

which allows interfacing to a much wider range of fast 8-bit and

16-bit microprocessors. It is loaded by a single 12-bit-wide word

under the control of the

CS and WR inputs; tying these control

inputs low makes the input latches transparent, allowing unbuf-

fered operation of the DAC.