AD7904/AD7914/AD7924
Data Sheet
CS
tCONVERT
6
t2
t6
B
1
2
3
4
5
11
12
13
14
t5
15
16
t11
SCLK
t3
t7
DB6
t4
t8
ZERO
tQUIET
DOUT
DIN
ZERO
t9
ADD1
ADD0
DB7
DB0
ZERO
ZERO
ZERO
THREE-
STATE
THREE-
STATE
2 IDENTIFICATION
BITS
4 TRAILING ZEROS
ZERO
t10
ADD0
WRITE SEQ1
DONTC
DONTC
ADD1
CODING DONTC DONTC
DONTC
DONTC
Figure 27. AD7904 Serial Interface Timing Diagram
CS
tCONVERT
t2
t3
t6
B
1
2
3
4
5
6
11
12
13
14
t5
15
16
t11
SCLK
t7
DB8
t4
t8
ZERO
2 TRAILING ZEROS
tQUIET
DOUT
DIN
ZERO
t9
ADD1
ADD0
DB9
DB2
DB1
DB0
ZERO
THREE-
STATE
THREE-
STATE
2 IDENTIFICATION
BITS
ZERO
t10
ADD0
WRITE SEQ1
DONTC
DONTC
ADD1
CODING DONTC DONTC
DONTC
DONTC
Figure 28. AD7914 Serial Interface Timing Diagram
CS
tCONVERT
t2
t3
t6
B
1
2
3
4
5
6
11
12
13
14
t5
15
16
SCLK
t11
t7
DB10
t4
t8
DB0
tQUIET
DOUT
DIN
ZERO
t9
ADD1
ADD0
DB11
DB4
DB3
DB2
DB1
THREE-
STATE
THREE-
STATE
2 IDENTIFICATION
BITS
ZERO
t10
ADD0
WRITE SEQ1
DONTC
DONTC
ADD1
CODING DONTC DONTC
DONTC
DONTC
Figure 29. AD7924 Serial Interface Timing Diagram
Rev. C | Page 26 of 32
ADI [ ADI ]
