Datasheet

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B
C
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54321
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C
B
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ti
12500 TI Boulevard. Dallas, Texas 75243
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Revision History
REV ECN Number Approved
DOCUMENT CONTROL #:
23
Analog-to-Digital Converter
A
DATE: 4-Aug-2006
Analog-to-Digital Converter
6458784
C32
1000pF
C5
1uF
C22
2.2uF
C30
1000pF
C34
1000pF
C23
2.2uF
C26
2.2uF
C35
1000pF
C27
2.2uF
C36
1000pF
+5VCC
+5VCC
+5VCC
+5VCC
C20
2.2uF
C28
1000pF
+5VCC
C21
2.2uF
C29
1000pF
+VBD
B_CS
B_RD
B_CONVST
B_BYTE
BUSY
B_BUS18/16
+VBD
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10 DB11 DB12 DB13 DB14 DB15
C31
1000pF
C24
2.2uF
+5VCC
BUSY
DB[17...0]
B_CS
B_RD
B_BYTE
B_CONVST
B_BUS18/16
DB[17...0]
31
2
SJP6
C6
22uF
R33
0
C25
2.2uF
C33
1000pF
R1
49.9
Lijoy Philipose
Lijoy Philipose
C37
47uF
+VCC
-VCC
C9
1uF
C10
1uF
R27
300
R4
300
3
2
1
84
U4A
THS4032
5
6
7
U4B
THS4032
R28
NI
R29
300
C3
1uF
C38
10uF
C4
NI
C39
NI
R16
0
R6
NI
-VCC
+VCC
C13
NI
C14
NI
3
2
6
7 4
51
8
U7
NI
3
2
6
74
5 1
8
U6
THS4031
C12
1uF
C11
1uF
+VCC
-VCC
R9
0
-IN
+IN
R37
300
R21
NI
R35
NI
R31
0
R32
NI
12
SJP7
-DC
R38 300
R36 75
12
SJP8
+DC
R20
NI
R34
NI
R12
NI
R18
NI
R7
NI
R39
5
R40
5
C45
2200pF
C47
NI
C46
NI
R19
0
R22
0
*
*
*C0G*
*
*
C41
1uF
C42
NI
R8
NI
R26
33
C19
NI
C18
NI
R25
33
+DC
-DC
R2
49.9
R3
NI
C44 NI
C43
NI
R17
0
+VBD
1
BUS18/16
2
BYTE
3
CONVST
4
RD
5
CS
6
+VA
7
AGND
8
AGND
9
+VA
10
REFM
11
REFM
12
REFIN
13
REFOUT
14
NC
15
+VA
16
AGND
17
+IN
18
-IN
19
AGND
20
+VA
21
+VA
22
AGND
23
AGND
24
+VA
25
AGND
26
AGND
27
DB17
28
DB16
29
DB15
30
DB14
31
DB13
32
DB12
33
DB11
34
DB10
35
+VBD
36
BDGND
37
DB9
38
DB8
39
DB7
40
DB6
41
DB5
42
DB4
43
DB3
44
DB2
45
DB1
46
DB0
47
BUSY
48
U5
ADS8484
DB16 DB17
EXT_REF
31
2
SJP1
J3
J4
31
2
SJP3
31
2
SJP4
R10
NI
R13
NI
R24 10K
*COG*
12
SJP9
C40
10uF
+5VCC
C1
0.47uF
GND_F
1
GND_S
2
ENABLE
3
IN
4
OUT_S
5
OUT_F
6
U1
REF3230
+5VCC
C2
0.47uF
GND_F
1
GND_S
2
ENABLE
3
IN
4
OUT_S
5
OUT_F
6
U2
REF3240
NC
1
+VIN
2
EN
3
GND
4
NC
5
VREF
6
NC
7
NC
8
U3
NI
C8
NI
+5VCC
C7
1uF
**VRE4141**
12
SJP2
R5
33