AD5541A

Data Sheet

Rev. B | 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. Figure 35 shows a typical circuit.

AD5541A

CS

DIN

SCLK

AD5541A

CS

DIN

SCLK

AD5541A

CS

DIN

SCLK

AD5541A

CS

DIN

SCLK

DGND

EN

CODED

ADDRESS

SCLK

DIN

ENABLE

DECODER

Figure 35. Addressing Multiple DACs