1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
1
1
6/6/2013
ADS1x20EVM-PW.SchDoc
Sheet Title:
Size:
Mod. Date:
File:
Sheet:
of
B
http://www.ti.com
Contact:
http://www.ti.com/support
ADS1x20EVM
Project Title:
Designed for:
Public Release
Assembly Variant:
Variant name not interpreted
© Texas Instruments
2013
Drawn By:
Engineer:
Robert Benjamin
Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this specification or any information contained therein. Texas Instruments and/or its licensors do not
warrant that this design will meet the specifications, will be suitable for your application or fit for any particular purpose, or will operate in an implementation. Texas Instruments and/or its
licensors do not warrant that the design is production worthy. You should completely validate and test your design implementation to confirm the system functionality for your application.
28
SVN Rev:
6544486
Number:
Rev:
A
EOH
1
GND
2
OUT
3
VCC
4
U3
CRY_C3391-4.096
+3.3V
A
1
B
2
Y
3
GND
4
Y
5
A/B
6
G
7
VCC
8
U2
SN74LVC2G157DCTR
+3.3V
A0
1
A1
2
GND
4
SDA
5
SCL
6
WP
7
VCC
8
A2
3
U4
24AA256-I/ST
1
2
3
4
JP3
JPR-2X2
1
1
2
2
J3
THERMOCOUPLE
1
2
JP4
JPR-2X1
1
2
J8
HEADER-2
+3.3V
+3.3V
+5V
+3.3V
AVDD
AVDD
+3.3V
AVDD
TP10
DGND
TP11
AGND
AVDD
2
4
1
3
J5
EXP. OPTION
SDA
SCL
AVDD
1
2 JP2
JPR-2X1
1
2
3
4
J6
HEADER-4
J1
LOAD CELL/BRIDGE
J2
RTD
1
2 JP1
JPR-2X1
TP1
CS
TP2
SCLK
TP3
DIN
TP5
DOUT
TP4
DRDY
TP6
SCL
TP7
SDA
J7
EXT 5V
+5V
IN
1
GND
2
EN
3
NC
4
OUT
5
U5
TPS76333DBV
uC Power
USB I/O
+5V
1
DP
3
GND
4
SHLD
6
SHLD
5
DM
2
J9 USB A - PLUG
501R15W103KV4E
+5V
+3.3V
+5V
P6.0/C
B0/A0
1
P6.1/C
B1/A1
2
P6.2/C
B2/A2
3
P6.3/C
B3/A3
4
P6.4/C
B4/A4
5
P6.5/C
B5/A5
6
P6.6/C
B6/A6
7
P6.7/C
B7/A7
8
P5.0/A
8/VR
EF
+/VeR
E
F
+
9
P5.1/A
9/VR
EF
-/
Ve
R
E
F
-
10
AVC
C
1
11
RST/NM!I/SBWTDIO
64
PJ.3/TCK
63
PJ.2/TMS
62
PUR
51
PU.0/DP
50
VSSU
49
P4.
7
/PM_N
O
N
E
48
P4.
6
/PM_N
O
N
E
47
P4.5
/PM_U
C
A1R
X
D
/PM_
U
C
A
1
S
OMI
46
P5.5/X
O
U
T
13
P5.4/X
IN
12
VBUS
53
VUSB
54
V18
55
P5.2/XT2IN
57
P5.3/XT2OUT
58
TEST/SBWTCK
59
AVSS1
14
DV
C
C1
15
D
VSS1
16
VCORE
17
P1.0/TA0CLK/ACLK
18
P1.1/TA0.0
19
P1.2/TA0.1
20
P1.3/TA0.2
21
P1.4/TA0.3
22
P1.5/TA0.4
23
P1.6/TA1CLK/CBOUT
24
P1.7/TA1.0
25
P2.0/TA1.1
26
P2.1/TA1.2
27
P2.2/TA2CLK/SMCLK
28
P2.3/TA2.0
29
P2.4/TA2.1
30
P2.5/TA2.2
31
P2.6/RTCCLK/DMAE0
32
P2
.7/UC
B
0ST
E
/UC
A
0CLK
33
P3.0/
U
C
B
0
S
IMO/U
C
B0SD
A
34
P
3
.1/U
CB
0S
O
M
I/
UCB
0
S
CL
35
P3
.2/UC
B
0CL
K
/UC
A
0ST
E
36
P3
.3/UC
A
0T
XD/U
CA0SIMO
37
P3.4/U
CA0R
XD/U
CA0SO
M
I
38
D
VSS2
39
DV
C
C2
40
P4.0
/PM_U
C
B1ST
E/PM_U
C
A
1C
LK
41
P4.1/PM_
UCB1
S
IMO
/PM_U
CB1SD
A
42
P4.2/
P
MUC
B
1SO
MI/PMU
CB1SC
L
43
P4
.3/PM_U
C
B1C
L
K/PMU
C
A1ST
E
44
P
4
.4
/P
M_UC
A
1
T
X
D/P
M
_
UCA
1
S
IMO
45
PU.1/DM
52
AVSS2
56
PJ.0/TDO
60
PJ.1/TDI/TCLK
61
PAD
U7
MSP430F5528IRGC
1
2
3
4
5
6
7
8
J10
HEADER-8
+3.3V
+3.3V
+3.3V
RESET
TEST
TCK
TMS
TDI
TDO
S2
BSL LOADER
VD
D
5
RESET
4
MR
3
CT
1
GN
D
2
U6
TPS3838L30DBVT
S1
RESET
+3.3V
+3.3V
POWER INDICATORS
RESET
+3.3V
X1
12MHz
TP8
+5V
TP9
+3.3V
DOUT
SCLK
CS
DIN
TOUT
2
3
1
14
7
U8A
SN74LVC125APWR
5
6
4
U8B
SN74LVC125APWR
9
8
10
U8C
SN74LVC125APWR
12
11
13
U8D
SN74LVC125APWR
+3.3V
1
2
JP6
JPR-2X1
+3.3V
1
2
JP5
JPR-2X1
+3.3V
SCL
SDA
A0(+)
2
A1(+)
4
A2(+)
6
A3(+)
8
A0(-)
1
A1(-)
3
A2(-)
5
A3(-)
7
VREF-
9
VREF+
10
J4
DAUGHTER-ANALOG_SHORT
1
2
JP7
5V USB
+3.3V
180
R14
510
R15
100k
R11
100k
R20
1.0Meg
R12
1.0Meg
R13
33
R18
33
R19
100
R17
1.40k
R16
47
R25
470k
R10
470k
R9
47k
R8
10k
R21
10k
R22
2.7k
R24
2.7k
R23
0
R4
0
R5
0
R6
0
R7
NI
R3
NI
R1
NI
R2
NI
C1
NI
C3
NI
C5
NI
C7
NI
C6
NI
C2
NI
C4
0.1µF
C15
0.1µF
C16
0.1µF
C11
0.1µF
C12
0.1µF
C13
0.1µF
C14
0.1µF
C19
0.1µF
C18
0.1µF
C20
0.1µF
C17
C21
NI
10µF
C9
10µF
C10
22pF
C24
22pF
C25
33pF
C26
33pF
C27
1µF
C28
0.47µF
C29
Green
D1
Green
D2
0.01uF
C23
0.01uF
C22
L1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
19
16
18
20
JAC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
19
16
18
20
JDB
+3.3V
1
2
JP8
JPR-2X1
47
R27
47
R26
+5V
0
R28
0
R29
NI
C31
NI
C30
NI
C32
NI
R30
0.1µF
C8
DG
ND
4
AVSS
5
AIN
3
/R
EF
N
1
6
AIN2
7
REFN0
8
REFP0
9
AIN1
10
AIN
0
/R
EF
P1
11
AVD
D
12
DV
D
D
13
DR
DY
14
DOUT/DRDY
15
DIN
16
SCLK
1
CS
2
CL
K
3
U1
ADS1X20IPW
NI
R31