AD8804
FEATURES
Low Cost Replaces 12 Potentiometers Individually Programmable Outputs 3-Wire SPI patible Serial Input Power Shutdown <55 Watts Including IDD & IREF Midscale Preset, AD8802 Separate VREFL Range Setting, AD8804 +3 V to +5 V Single Supply Operation APPLICATIONS Automatic Adjustment Trimmer Replacement Video and Audio Equipment Gain and Offset Adjustment Portable and Battery Operated Equipment
12 Channel, 8-Bit Trim DACs with Power Shutdown AD8802/AD8804
FUNCTIONAL BLOCK DIAGRAM
CS CLK
D7
AD8802/AD8804
DAC 1 DAC REG #1
D0 R
VDD VREFH O1 O2 O3 O4 O5 O6 O7 O8 O9 O10 O11 O12
D11 D10 D9 D8 D7
ADDR DEC
SER REG SDI
D D0 D7
DAC 12 DAC REG #12
8 D0
SHDN
GENERAL DESCRIPTION
The 12-channel AD8802/AD8804 provides independent digitallycontrollable voltage outputs in a pact 20-lead package. This potentiometer divider Trim DAC® allows replacement of the mechanical trimmer function in new designs. The AD8802/ AD8804 is ideal for dc voltage adjustment applications. Easily...
