Datasheet

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BUSY
STATUS
(N+1)th Accquisition (N+1)th Conversion
Error
Correction
Nth Conversion
Error
Correction
External
DATACLK
DATA
Nth Data (N+1)th Data
(N+2)th Accquisition
TAG = 0
No more
data to
shift out
No more
data to
shift out
TAG = 0
TAG = 0
TAG = 0
TAG = 0
R/C
EXT/INT tied high, CS and TAG are tied low
t
w1
+ t
su1
starts READ
t
w1
t
w1
t
d1
t
w2
t
d1
t
w2
t
d3
t
d11
t
d2
t
d3
t
d11
t
d2
t
su1
t
conv
t
acq
t
conv
t
acq
t
su3
t
su1
t
su3
1
12
1
2 12
1 12
1
2
12
BUSY
STATUS
(N+1) th Accquisition
Error
Correction
Nth Conversion
External
DATACLK
DATA
Nth Conversion Data
SYNC = 0
D11
0 1 2 3
1110 12
TAG
T01
D06D08D09D10
T00 T04
T03T02
T09T08T06 T12T11T10
Tyy
54
7 8 9
D07
T05
D04 D03 D02 D01
Txx
T00
D00
Null
T17
Null
R/C
EXT/INT tied high, CS tied low
t
w1
+ t
su1
starts READ
t
w1
t
d1
t
w2
t
su1
t
d3
t
d11
t
d2
t
conv
t
acq
t
d3
t
d1
t
su3
t
w3
t
c2
t
w4
t
su1
t
d8
t
d8
t
su3
t
h1
ADS8508
SLAS433 – SEPTEMBER 2005
PARAMETER MEASUREMENT INFORMATION (continued)
Figure 3. Basic Conversion Timing - External DATACLK
Figure 4. Read After Conversion (Discontinuous External DATACLK)
8