Datasheet
BUSY
STATUS
(N+1) th Accquisition
Error
Correction
Nth Conversion
External
DATACLK
DATA
Nth Conversion Data
SYNC = 0
D15
0 1 2 3
1514 16
TAG
T01
D05D10D12D13D14
T00 T04
T03T02
T13T12T11T06 T16T15T14
Tyy
54
11 12 1310
D11
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
BUSY
STATUS
Error
Correction
Nth Conversion
External
DATACLK
DATA
Nth Conversion Data
SYNC = 0
D15
0
1 2 3 1514 16
D05D10D12D13D14
54 11 12 1310
D11 D00D04 D03 D02 D01
R/C
EXT/INT tied high, CS and TAG tied low
Rising DATACLK change DATA, t
w1
+ t
su1
Starts READ
TAG is not recommended for this mode. There is not enough
time to do so without violating t
d11
.
t
w1
t
d1
t
w2
t
d10
t
d3
t
su3
t
conv
t
d2
t
su1
t
w3
t
c2
t
w4
t
d11
t
d8
t
d8
ADS8509
www.ti.com
SLAS324C –OCTOBER 2004–REVISED APRIL 2010
PARAMETER MEASUREMENT INFORMATION (continued)
Figure 4. Read After Conversion (Discontinuous External DATACLK)
Figure 5. Read During Conversion (Discontinuous External DATACLK)
Copyright © 2004–2010, Texas Instruments Incorporated 9
Product Folder Link(s): ADS8509