Datasheet

AD5541A
Rev. A | Page 18 of 20
DECODING MULTIPLE DACS
The
CS
pin of the AD5541A can be used to select one of a
number of DACs. All devices receive the same serial clock and
serial data, but only one device receives the
CS
signal at any one
time. The DAC addressed is determined by the decoder. There is
some digital feedthrough from the digital input lines. Using a
burst clock minimizes the effects of digital feedthrough on the
analog signal channels. shows a typical circuit. Figure 35
AD5541A
CS
DIN
SCLK
V
OUT
AD5541A
CS
DIN
SCLK
V
OUT
AD5541A
CS
DIN
SCLK
V
OUT
AD5541A
CS
DIN
SCLK
V
OUT
V
DD
DGND
EN
CODED
ADDRESS
SCLK
DIN
ENABLE
DECODER
08516-030
Figure 35. Addressing Multiple DACs