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1: SDI
2: RST/PD
3: REFSEL
4: DAISY
5: REFIO
6: REFGND
7: REFCAP
8: AGND
9: AVDD
10: AUX_IN
11: AUX_GND
12: AIN_6P
13: AIN_6GND
14: AIN_7P
15: AIN_7GND
16: AIN_0P
17: AIN_0GND
18: AIN_1P
19: AIN_1GND
38: CS
37: SCLK
36: SDO
35: NC
34: DVDD
33: DGND
32: AGND
31: AGND
30: AVDD
29: AGND
28: AGND
27: AIN_5P
26: AIN_5GND
25: AIN_4P
24: AIN_4GND
23: AIN_3P
22: AIN_3GND
21: AIN_2P
20: AIN_2GND
1µF
22µF
G
N
D
G
N
D
GND
G
N
D
G
N
D
10µF
G
N
D
1µF
G
N
D
C
S
SC
L
K
SD
O
SD
I
R
ST
/PD
R
EF
SEL
DAISY
Optional RC Filter for
Channel AIN_0 to AIN_7
1µF
Digital Pins
Analog Pins
10µF
(When using internal V
REF
)
SBAS686 – JULY 2015
11.2 Layout Example
Figure 112. Board Layout for the ADS8694 and ADS8698
68
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