Schematic - Texas Instruments ADS7042EVM-PDK User Manual

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5.3 Schematic

Figure 5-8 shows the schematic for the ADS704X-5XEVM.
EVM_REG_5V5 EVM_REG_5V5 EVM_CAP EVM_ID_PWR TP1
C2
D1 C1 C3
10uF 10uF 10uF
Green
R41 AGND AGND AGND AGND
470
AGND
R37 0
DNP
C12 100nF
DNP
R36
1.00k
OPA_VDD
C10
100nF
5
R35
J1
1.00k
1 4 AGND
1
R42
VBIAS 3
OPA836IDBVR
U6
100
AINM
AGND OPA_VSS
R40
C14
R43 0
10nF
JP1 0
AGND AGND
U7C
OPA2836QDGKRQ1
OPA_VDD
8 4
V+ V-
C13
R44
100nF
0
C23 100nF
DNP
AGND
R23
AGND
1.00k
J2 U7A
R24
1 2
R25
1
1.00k
A
3
16.0
OPA2836QDGKRQ1
AGND VBIAS C17
300pF
JP2 U7B
5
R27
J3 7
R29
1 6
16.0
1.00k
OPA2836QDGKRQ1
R30
1.00k
AGND
C24 100nF
DNP
JP3
SBAU382 – NOVEMBER 2021
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U1
TPS79101DBVR
EVM_REG_5V5 1 6
IN OUT
C4 3 5
EN FB
1µF
4
BYPASS
R2 GND C18
0 10nF
U2
TPS79101DBVR
1 6
IN OUT
C6 3 5
EN FB
1µF
4
BYPASS
GND
R8 C21
0 10nF
AVDD EVM_DVDD
R11 R12
0 0
C8
1µF
AGND AGND
U3
R14
16.0
U3_AINP 6 7 U3_AVDD
AINP AVDD
C11
1 U3_DVDD
300pF DVDD
U3_AINM 5
AINM
U3_SCLK R18 49.9
R38 2
SCLK
U3_SDO R19 49.9
16.0 3
SDO
U3_CS R20 49.9
8 4
GND CS
ADS7042IDCUR
Replace R43 and R44 with 100nF
capacitors when OPA_VSS ≠ AGND
OPA_VSS
AVDD EVM_DVDD
R21 R22
0 0
C15 C16
1µF 1µF
AGND AGND
U5
U5_AINP U5_AVDD
7 6
AINP AVDD
U5_DVDD
4
DVDD
U5_AINM
8
AINM
3 U5_SCLK R15 49.9 SCLK_AB
SCLK
2 U5_SDO R16 49.9 SDO_B
SDO
5 1 U5_CS R17 49.9 CS_B
GND CS
ADS7057IRUGR
AGND
Figure 5-8. ADS704X-5XEVM Schematic
Copyright © 2021 Texas Instruments Incorporated
JP4
R1
OPA_VDD 1 OPA_VDD
2 AVDD
0
C5 R31 3 OPA_VSS
15pF 59.0k C7
10V
10uF
R32
30.1k
AGND
R6
AVDD
0
C19 R33 R3 R7
15pF 51.1k C20 301k 100k
R39
10V AVDD/4 AVDD/2
DNP
10uF
0
R34 R5 R9
30.1k 100k 100k
AGND
C9
1µF
U8
U3_AINP 7 6 U3_AVDD
AINP AVDD
4 U3_DVDD
DVDD
U3_AINM 8
AINM DNP
SCLK_AB U3_SCLK
3
SCLK
SDO_A U3_SDO
2
SDO
CS_A U3_CS
5 1
GND CS
ADS7042IRUGR
AGND
U9
U5_AINP U5_AVDD
6 7
AINP AVDD
U5_DVDD
1
DVDD
U5_AINM DNP
5
AINM
U5_SCLK
2
SCLK
3 U5_SDO
SDO
8 4 U5_CS
GND CS
ADS7044IDCUR
AGND
ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK
Bill of Materials, Layout, and Schematic
C25
OPA_VDD
AGND
100nF
2
1
R4 AVDD/2 3
0 U10A
OPA2320AIDGKR
AGND
AGND U10B
AVDD/4 OPA2320AIDGKR
5
7
6
OPA_VDD
EVM_ID_PWR EVM_ID_PWR
C22
R26
10.0k
100nF
U4
1 8
A0 VCC
AGND
2 7 WP
A1 WP
3 6 EVM_ID_SCL
A2 SCL
4 5 EVM_ID_SDA
VSS SDA
BR24G32FVT-3AGE2
AGND
J4
2
2 1
4
4 3
6
6 5
8
8 7
10
10 9
12
12 11
14
14 13
16
16 15
JP5
18
18 17
CS_A
1 2 20
20 19
CS_B
3 4 22
22 21
SCLK_AB
5 6 24
24 23
7 8 26
26 25
9 10 28
28 27
30
30 29
TSW-105-07-G-D 32
32 31
34
AGND 34 33
36
36 35
SDO_A 38
38 37
SDO_B 40
40 39
42
42 41
44
44 43
46
46 45
48
48 47
R13
EVM_DVDD EVM_CAP 50
50 49
52
0
52 51
54
54 53
EVM_ID_SDA
56
56 55
EVM_ID_SCL
58
58 57
60
60 59
MP1
GND GND
MP2
GND GND
QTH-030-01-L-D-A
AGND
Evaluation Module
R45
AINM
DNP
0
VBIAS
R28 S1
10.0k
1
2
3
CAS-120TA
AGND
R10 0 EVM_ID_WP
DNP
EVM_REG_5V5
1
3
5
7
9
11
13 AGND
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
EVM_ID_PWR
53
55
EVM_ID_WP
57
59
MP3
MP4
AGND
23