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DA9187.002

29 January, 2004

8-BIT DAC

8-BIT DAC

8-BIT DAC

8-BIT DAC

8-BIT DAC

8-BIT DAC

8-BIT DAC

O8

8-BIT DAC

O7

O6

O5

O4

O3

O2

O1

VREFHVREFL

8-BIT DAC

8-BIT DAC

8-BIT DAC

8-BIT DAC

O12

O11

O10

O9

CLK

SDI

XCS

VDD

GND

12-bit

Shift

Register

Address

Decoder

8-bit data

MAS9187

12 X 8-bit D to A Converter

• 3-pin Serial Data Interface

• Low Voltage Output Buffer

DESCRIPTION

MAS9187 is 12-channel 8-bit DAC, designed

primarily for trimmer replacement. Device is

controlled by a simple 3-line input. The output

buffers operate in the entire voltage range from

ground to the positive power supply rail.

DAC is selected with four first bits in serial input

data (SDI-pin) and the DAC output value is set

according to the last 8 bits in serial input data.

FEATURES

APPLICATIONS

•

Twelve 8-bit DACs on a single monolithic chip

•

Voltage level output

•

TSSOP 20 package

•

Single, low +1.8 V supply

•

Power-on reset

•

High resolution monitors

•

Automatic gain control

•

Trimmer replacement

BLOCK DIAGRAM