Schematic; Figure 8-2. Input Filter - Texas Instruments ADS8688EVM-PDK User Manual

Bill of Materials, Schematics, and Layout

8.3 Schematic

Figure 8-2 shows the input filter, terminal block, and SMA connections.
J04
1 Ain4+
5-1814832-1
GND
J05
Ain5+
1
5-1814832-1
GND
J06
Ain6+
1
5-1814832-1
GND
J07
1 Ain7+
5-1814832-1
GND
J2
1
3
5
7
TSW-104-07-G-D
GND J6
1
3
5
7
TSW-104-07-G-D
GND
20 ADS8688EVM-PDK Evaluation Module
R42 R43
A4+
0 1.00k
R41 D41
DNP DNP
49.9k SMBJ14CA C41
14V 50V
1000pF
GND GND
R44
Ain4- A4-
1.00k
R45
0
GND
R52 R53
A5+
0 1.00k
R51 D51
DNP DNP
49.9k SMBJ14CA C51
14V 50V
1000pF
GND GND
R54
Ain5- A5-
1.00k
R55
0
GND
R62 R63
A6+
0 1.00k
R61 D61
DNP DNP
49.9k SMBJ14CA C61
14V 50V
1000pF
GND GND
R64
Ain6- A6-
1.00k
R65
0
GND
R72 R73
A7+
0 1.00k
R71 D71
DNP DNP
49.9k SMBJ14CA C71
14V 50V
1000pF
GND GND
R74
Ain7- A7-
1.00k
R75
0
J5
2 Ain6- 1 2
GND
4 Ain6+ 3 4
Ain7-
6 5 6
Ain7+
8 7 8
TSW-104-07-G-D
J7
1 2
Ain0-
2 3 4
Ain0+
4 5 6
Ain1-
6 7 8
8 Ain1+
TSW-104-07-G-D
GND

Figure 8-2. Input Filter

Copyright © 2021 Texas Instruments Incorporated
J00
R02
1 Ain0+
0
R01
DNP DNP
49.9k
5-1814832-1
GND GND GND
Ain0-
J01
R12
Ain1+
1
0
R11
DNP DNP
49.9k
5-1814832-1
GND GND GND
Ain1-
J02
R22
Ain2+
1
0
R21
DNP DNP
49.9k
5-1814832-1
GND GND GND
Ain2-
J03
R32
1 Ain3+
0
R31
DNP DNP
49.9k
5-1814832-1
GND GND GND
Ain3-
Ain2+
Ain2-
Ain3+
Ain3-
Ain4+
Ain4-
Ain5+
Ain5-
SBAU230C – AUGUST 2014 – REVISED MARCH 2021
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R03
A0+
1.00k
D01
SMBJ14CA C01
14V 50V
1000pF
R04
A0-
1.00k
R05
0
GND
R13
A1+
1.00k
D11
SMBJ14CA C11
14V 50V
1000pF
R14
A1-
1.00k
R15
0
GND
R23
A2+
1.00k
D21
SMBJ14CA C21
14V 50V
1000pF
R24
A2-
1.00k
R25
0
GND
R33
A3+
1.00k
D31
SMBJ14CA C31
14V 50V
1000pF
R34
A3-
1.00k
R35
0
GND
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