MAS9188 Datasheet, PDF (1/10 Pages) Micro Analog systems – 12 × 8-Bit D to A Converter

DA9188.002
23 February 2005
MAS9188
12 × 8-Bit D to A Converter
• 3-Pin Serial Data Interface
• Low Voltage Output Buffer
• Replaces 12 Potentiometers
• Individually Programmable
Outputs
• Fully Operational Down to 1.2 V
DESCRIPTION
MAS9188 is 12-channel 8-bit DAC, designed
primarily for trimmer replacement. The device is
controlled by a simple 3-line input.
FEATURES
• Twelve 8-Bit DACs on a Single Monolithic Chip
• Voltage Level Output
• TSSOP-20 Package
• Single, Low +1.2 V Supply
• Power-On Reset
• Functionally and Pin Compatible with
AD8802/AD8804
BLOCK DIAGRAM
The DAC is selected with the four first bits in the
serial input data (SDI-pin) and the DAC output value
is set according to the last 8 bits in the serial input
data.
APPLICATIONS
• High Resolution Monitors
• Automatic Gain Control
• Trimmer Replacement
• Portable and Battery-Operated Equipment
SDI
CLK
12-bit
Shift
Register
8-bit data
XCS
Address
Decoder
VREFHVREFL VDD GND
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
O12
O11
O10
O9
O8
O7
O6
O5
O4
O3
O2
O1
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