Datasheet

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A
B
C
D
654321
D
C
B
A
ti
12500 TI Boulevard. Dallas, Texas 75243
Title:
SHEET: OF:
FILE:
SIZE: DATE: REV:
9-Oct-2009
Drawn By:
Engineer:
A0
A1
B0
B1
C0
C1
REFen/WR
DC_ARE#
DC_INTa
HOLD_B#
HOLD_A#
STBY#
AVdd BVdd
DC_TOUT
HOLD_C#
HOLD_B#
HOLD_A#
HOLD_C#
TP11
C33
0.1uF
C34
0.1uF
C32
0.1uF
C35
0.1uF
C40
0.1uF
C38
0.1uF
TP10
C39
0.1uF
AVdd
ADC Bypass
BVdd
C37
0.47uF
CS#
R22
10K
Tom Hendrick
Tom Hendrick
B A
ADS8556 Evaluation Module
2
2
TP17
TP12
TP13
TP15
ADC Data Bus
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
J5
Parallel Control
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
J4
DC_CNTL
C12
0.1uF
DC_D0
DC_D1
DC_D2
DC_D3
DC_D4
DC_D5
DC_D6
DC_D7
DC_D8
DC_D9
DC_D10
DC_D11
DC_D12
DC_D13
DC_D14
DC_D15
DC_AWE
DC_ARE#
DC_TOUT
DC_INTa
Serial Control
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
J1
CS#
JP9
DC_A0
DC_A1
DC_A2
DC_A3
CH_A0
33
AGND
32
CH_A1
36
AGND
37
CH_B0
39
AGND
38
CH_B1
42
AGND
43
CH_C0
45
AGND
44
CH_C1
48
AGND
49
AVDD
46
AVDD
60
AVDD
50
AVDD
47
AVDD
41
BVDD
9
AVDD
40
AGND
55
AGND
25
AGND
52
AGND
53
AGND
57
AGND
59
BGND
8
REFIO
51
PAR/SER
61
DB15
64
DB14
1
DB13
2
DB12
3
DB11
4
DB10
5
DB9
6
DB8
7
DB7
10
DB6
11
DB5
12
DB4
13
DB3
14
DB2
15
DB1
16
DB0
17
RANGE
27
RESET
28
/STBY
24
BYTE
29
HVDD
31
HVSS
30
WR/REFen
63
HW/SW
62
/RD
20
/CS
19
BUSY
18
HLDA
23
HLDB
22
HLDC
21
AVDD
26
REFC_A
54
REFC_B
56
REFC_C
58
AVDD
35
AVDD
34
U4
ADS8556
1A
1
2B1
2
2B2
3
3B1
53
4B1
5
6A
48
7A
10
8A
45
9A
15
2A
54
4A
51
3A
4
5A
7
5B1
50
6B1
8
7B1
47
8B1
11
VCC
14
GND
13
TEST1
27
TEST2
28
SEL1
30
10A
40
11A
18
12A
37
13A
21
14A
34
15A
24
16A
31
3B2
52
9B1
42
10B1
16
11B1
39
12B1
19
13B1
36
14B1
22
15B1
33
16B1
25
1B1
56
1B2
55
5B2
49
6B2
9
4B2
6
8B2
12
9B2
41
7B2
46
11B2
38
12B2
20
10B2
17
13B2
35
15B2
32
16B2
26
14B2
23
VCC
43
GND
44
SEL2
29
U7
SN74CBT16233
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
C43
10uF
C44
10uF
C45
10uF
C42
0.1uF
R16
10
R17
10
BVdd
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
VCC
16
GND
8
U3
SN74AHC138
STBY#
BVdd
C46
0.1uF
R18
10K
BVdd
DC_A0
DC_A1
DC_A2
DC_A3
SEL = 0; A = B1
SEL = 1; A = B2
SEL_A
SEL_B
SEL_C
DCIN_A
DCIN_B
DCIN_C
SCLK
DCen
SDO_A
SDO_B
SDO_C
SDI
BUFen
JP3
FS/CS
TP5
TP4
HVSS HVDD
R7A
R7B
R7C
R7D
R7E
R7F
R7G
R7H
10K
BVdd
RESET
1
2
3
4
5
6
11
12
7
8
9
10
13
14
15
16
17
18
19
20
SW1
DC_CNTL
RESET
EDGE # 6509747
C57
10uF
C58
10uF
IN2
6
IN1
1
IN0
3
Y
4
GND
2
Vcc
5
U2
SN74LVC1G97
IN2
6
IN1
1
IN0
3
Y
4
GND
2
Vcc
5
U8
SN74LVC1G97
DC_AWE
REFen/WR
R37
10K
BVdd
BVdd
BVdd
R38
10K
BVdd
R15
10K
BVdd
R34
10K
BVdd
R35
10K
BVdd
R36
10K
BVdd
R33
10K
C59
0.1uF
R39
10K
R40
10K
IN2
6
IN1
1
IN0
3
Y
4
GND
2
Vcc
5
U10
SN74LVC1G97
BVdd
J6
R45
33
Range/Extclk
Range/Extclk
C53
10uF
C50
0.1uF
C60
0.1uF
3
2
6
7 4
51
8
U9
OPA211
R42
10
R41 49.9
C66 0.01uF
C61
22uF
AVdd
R43
100
C63
47uF
C65
0.01uF
C64
47uF
VIN
2
GND
4
OUT
6
TRIM
5
TEMP
3
DNC
1
N/C
7
DNC
8
U11
REF5025
C62
47uF
AVdd
C54
1uF
R44
1
JP12
WORD_BYTE
Range 4x -2x
HDW - SFT
PAR - SER
REFBUFen
SERAen
SERBen
SERCen
REFen
DCen