AD7654

Rev. B | Page 23 of 28

CS

SCLK

SDOUT

CH A

D15

BUSY

SDIN

INVSCLK = 0

X

12

3

30

31

32

33

34

EXT/INT = 1

CH B D0

CH B D1

CH A

D13

CH A

D14

XCH A

D14

XCH A

D15

XCH A

D13

XCH A

D14

XCH B

D0

XCH B

D1

YCH A

D14

YCH A

D15

RD = 0

A/B = 1

EOC

XCH A

D15

Figure 32. Slave Serial Data Timing for Reading (Read After Convert)

CNVST

SDOUT

SCLK

X

CHAD15

12

3

31

32

44

BUSY

INVSCLK = 0

CS

EXT/INT = 1

CHBD0

CHBD1

CHAD13

CHAD14

RD = 0

EOC

A/B= 1

Figure 33. Slave Serial Data Timing for Reading (Read Previous Conversion During Convert)