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AD7609
Data Sheet
Rev. A | Page 8 of 36
Limit at TMIN, TMAX
Parameter
Min
Typ
Max
Unit
Description
t13
Delay from CS until DB[15:0] three-state disabled
19
ns
VDRIVE above 4.75 V
24
ns
VDRIVE above 3.3 V
30
ns
VDRIVE above 2.7 V
37
ns
VDRIVE above 2.3 V
Data access time after RD falling edge
19
ns
VDRIVE above 4.75 V
24
ns
VDRIVE above 3.3 V
30
ns
VDRIVE above 2.7 V
37
ns
VDRIVE above 2.3 V
t15
6
ns
Data hold time after RD falling edge
t16
6
ns
CS to DB[15:0] hold time
t17
22
ns
Delay from CS rising edge to DB[15:0] three-state enabled
SERIAL READ OPERATION
fSCLK
Frequency of serial read clock
20
MHz
VDRIVE above 4.75 V
15
MHz
VDRIVE above 3.3 V
12.5
MHz
VDRIVE above 2.7 V
10
MHz
VDRIVE above 2.3 V
t18
Delay from CS until DOUTA/DOUTB three-state disabled/delay from CS until
MSB valid
18
ns
VDRIVE above 4.75 V
23
ns
VDRIVE above 3.3 V
35
ns
VDRIVE = 2.3 V to 2.7 V
Data access time after SCLK rising edge
20
ns
VDRIVE above 4.75 V
26
ns
VDRIVE above 3.3 V
32
ns
VDRIVE above 2.7 V
39
ns
VDRIVE above 2.3 V
t20
0.4 tSCLK
ns
SCLK low pulse width
t21
0.4 tSCLK
ns
SCLK high pulse width
t22
7
SCLK rising edge to DOUTA/DOUTB valid hold time
t23
22
ns
CS rising edge to DOUTA/DOUTB three-state enabled
FRSTDATA OPERATION
t24
Delay from CS falling edge until FRSTDATA three-state disabled
18
ns
VDRIVE above 4.75 V
23
ns
VDRIVE above 3.3 V
30
ns
VDRIVE above 2.7 V
35
ns
VDRIVE above 2.3 V
t25
ns
Delay from CS falling edge until FRSTDATA high, serial mode
18
ns
VDRIVE above 4.75 V
23
ns
VDRIVE above 3.3 V
30
ns
VDRIVE above 2.7 V
35
ns
VDRIVE above 2.3 V
t26
Delay from RD falling edge to FRSTDATA high
19
ns
VDRIVE above 4.75 V
23
ns
VDRIVE above 3.3 V
30
ns
VDRIVE above 2.7 V
35
ns
VDRIVE above 2.3 V