MAS9187 - MAS

MAS9187 12 X 8-bit D to A Converter

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 se.

Features

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• Twelve 8-bit DACs on a single monolithic chip Voltage level output TSSOP 20 package Single, low +1.8 V supply Power-on reset APPLICATIONS
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• High resolution monitors Automatic gain control Trimmer replacement BLOCK DIAGRAM SDI CLK 12-bit Shift Register 8-bit data 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC O12 O11 O10 O9 O8 O7 XCS Address Decoder 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC O6 O5 O4 O3 O2 O1 VREFHVREFL VDD GND 1 (7) DA9187.002 29 January, 2004 PIN CONFIGURATION VREFH O1 O2 O3 O4 O5 O6 XSHDN XCS GND 1 2 3 4 20 19 18 1.