Analog Devices AD8804
12 Channel/ 8-Bit TrimDACs with Power Shutdown
FEATURES
Low Cost Replaces 12 Potentiometers Individually Programmable Outputs 3-Wire SPI Compatible 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 TrimDACs 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 EN ADDR DEC SER REG SDI D D0 D7 DAC 12 DAC REG #12 R 8 D0 SHDNGENERAL DESCRIPTION
The 12-channel AD8802/AD8804 provides independent digitallycontrollable voltage outputs in a compact 20-lead package. This potentiometer divider TrimDAC® allows replacement of the mechanical trimmer function in new designs. The AD8802/ AD8804 is ideal for dc voltage adjustment applications. Easily programmed by...