DC1813A - Schematic

5
4
3
2
1
REVISION HISTORY
9V-10V
R3
2
33
U8
NC7SZ04P5X
C11
CLK
3
0.1uF
U2
NC7SVU04P5X
4
GND
VIN
GND
SHDN VOUT
8
4
7
GND
C44
1uF
C59
1uF
E3
C20
47uF
6.3V
0805
C7
0.1uF
1
C47
OPT
C66
OPT
SEN
GND
GND
GND
5
BYP
2
C64
1uF
R57
OPT
R48
1.0K
1. ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603.
2. INSTALL SHUNTS AS SHOWN.
7
8
REF
REF
15
2
SCK
CHAIN
37
DB1
35
DB2
33
DB3
31
DB4
29
DB5
27
DB6
25
DB7
23
DB8
21
DB9
19
BUSY
RDL/SDI
9
13
DB10
17
14
11
12
C15
0.1uF
B
2
A
SCK
OE
1
4
4
SDO
1K
GND
BUSY
RD
15
DB11
0.1uF
R17
2K
3
BUSY
C16
R13
2
DB12
13
DB13
11
9
DB14
U9
RD
7
DB15
NC7SZ04P5X
5
3
CLKOUT
1
39
40
37
38
35
36
33
34
31
32
29
30
27
28
25
26
23
24
21
22
19
20
17
18
15
16
13
14
11
12
9
10
7
8
5
6
3
4
1
2
40
38
36
34
32
30
C
28
26
24
22
20
18
16
14
12
10
8
6
4
2
B
J3
9V-10V
EXT_CM
VREF
SDO
SDO
C46
1uF
1
2
3
4
SCK
5
6
CNV
7
8
9
10
11
12
13
14
SCK
C14
0.1uF
CNV
OPT
U1
LTC2370CMS-16
MSPS
BIT
R44
R32
2
16
OPT
5.1
-B
LTC2368CMS-16
1
16
OPT
5.1
-C
LTC2367CMS-16
0.5
16
OPT
10
-D
LTC2364CMS-16
0.25
16
OPT
10
-E
LTC2369CMS-18
1.6
18
300
5.1
-F
LTC2368CMS-18
1
18
300
5.1
-G
LTC2367CMS-18
0.5
18
300
10
-H
5
+3.3V
R7
1K
*
-A
NOTE: UNLESS OTHERWISE SPECIFIED
5
DC590_DETECT
3
R56
ASSY
A
C40
OPT
1206
OPT
VREF/2 EXT
C8
1uF
3
6
7
SHDN
0402
OPT
E4
R47
1.05K
1
4
IN5
39
DB0
U7
24LC024-I/ST
SCL
SDA
WP
A2
A1
A0
R10
4.99K
R11
4.99K
R12
4.99K
6
5
7
3
2
1
WP
2
PROG
JP4
3
IN
CNV
SDO
R19 0
DB16
C49
OPT
U5
LT1763CS8
C41
0.1uF
IN+
DB17
R58
0
R41
OPT
OUT
4
0.1uF
U6
NC7SZ66P5X
CNV
0402
R55
1
8
R45
0
R35
OPT
JP2
CM
9V-10V
C65
OPT
0805
R38
CNVST_33
DB16
J2
CON-EDGE40-100
+3.3V
1
C58
OPT
V-
C61
10uF
6.3V
U4
NC7SVU04P5X
VREF
3
10uF
6.3V
*
1
2
1
0
-
R40
OPT
C48
R39
BNC
+
4
5
8
J8
C42
15pF
3
2
B
AIN0 - VREF
R9
OPT
C63
10uF
6.3V
JP5
COUPLING
AC DC
1
R15
OPT
OVDD
C18 10uF
OPT 6.3V
3
*
3
6
10
16
0
0
2
BNC
R33
2
R14
3
VCC
U1
D
0.1uF
4
R8
33
C13
0.8VREF
GND
GND
GND
GND
U15
LTC6202CS5
(TSOT-6)
R32
5
6
C17
C39
0.01uF
50V
C0G
1206 R16 0
C4
33
Q
C56
0.1uF
JP6
FS
2
C10
0.1uF
VDD
OPT
V+
2
AIN+
0 - VREF
J4
C9
10uF
6.3V
R59
OPT
R31
3
7
PR
Q
VREF
C60
0.1uF
JP1
COUPLING
AC DC
1
R4
DATE
5-26-11
DB17
+2.5V
C
8
VCC
CLR
0.1uF
VREF
C6
10uF
6.3V
0.1uF
D
R46
0
1uF
C57
C43
0.1uF
GND
6
5
GND
GND
(LTC6652AHMS8-5)
+3.3V
V-
+3.3V
CP
5
6
V+
C55
OUTS
GND
GND
LTC6655BHMS8-5
4
GUY H.
+3.3V
C3
2
5
4
OPT
DNC
6
1
3
2
3
OUTF
+3.3V
U3
NL17SZ74
7
VCC
R6
1.00K
4
3
R5
49.9
1206
U10
1
5
5
2
BNC
C2
0.1uF
VIN
33
8
GND
VSS
J1
CLK IN
100MHz MAX
3.3VPP
SHDN
2
C1
0.1uF
R2
1.00K
C5
0.1uF
1
+3.3V
3
D
+3.3V
APPROVED
PRODUCTION
4
+3.3V
DESCRIPTION
2
5
R1
U20
REV
__
3
ECO
LTC2364CMS-18
4
0.25
18
300
10
DC590
87331-1420
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
3
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
JW
GUY H.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
LOW POWER, LOW NOISE ADC
SIZE
N/A
SCALE = NONE
2
DATE:
IC NO.
LTC23XXCMS FAMILY
DEMO CIRCUIT 1813A
05-26-11
SHEET 1
1
REV.
2
OF 2
A
3
2
U12
LT1763CS8-1.8
9V-10V
IO4
IO5
IO6
IO7
IO8
IO15
IO16
IO17
IO18
IO19
IO20
IO21
3
4
DB11
IO26
DB12
IO27
DB13
IO28
DB14
5
6
IO29
DB15
IO30
CLKOUT
IO33
7
IO34
8
IO35
15
CNVST_33
IO36
16
IO37
17
IO38
18
IO39
19
IO40
20
IO41
21
IO42
IO47
EPM240GT100C5N
IO48
C
IO49
IO50
DC590_DETECT
IO51
27
34
35
36
37
IO57
RD
IO58
BUSY
IO61
SCK
IO66
38
42
48
49
IO90
70
71
72
73
74
IO74
75
IO75
R44
EPM240GT100C5N
IO89
69
IO73
50
IO88
68
IO72
R30
10K
0402
IO87
67
IO71
47
IO86
66
IO70
+3.3V
IO85
61
IO69
41
IO84
58
IO68
40
IO83
57
IO67
39
IO82
56
IO56
SCK
IO81
55
IO55
SDO
IO78
54
IO54
30
IO77
53
IO53
29
IO76
52
IO52
28
33
51
IO91
DB16
IO92
DB17
IO95
DB0
IO96
DB1
IO97
DB2
IO98
IO99
EPM240GT100C5N
*
IO100
0402
76
77
78
E6
DB3
C21
22uF
16V
1210
GND
DB4
E7
DB5
IN
5
83
SHDN
4
BYP
D
+3.3V
U13
LT1763CS8
9V-10V
DB6
85
8
87
88
5
1
OUT
IN
2
SEN
C25
1uF
16V
86
SHDN
4
BYP
2
DB9
8
DB10
E9
2
SEN
C28
1uF
16V
C
1
OUT
IN
98
99
+2.5V
U14
LT1763CS8-2.5
9V-10V
97
100
R26
1.54K
R27
2.80K
1%
DB8
95
96
5
SHDN
4
3
6
7
BYP
+2.5V
C29
10uF
6.3V
C30
0.01uF
EPM240GT100C5N
+3.3V
C26
10uF
6.3V
C27
0.01uF
JP3 +3.3V
VCCIO
91
E8
R25
1.69K
+2.5V
DB7
90
92
C24
10uF
6.3V
C23
0.01uF
82
89
+1.8V
E5
2
SEN
C22
1uF
16V
81
84
+1.8V
1
OUT
1
IO3
D
2
8
9V - 10V
3
IO2
26
U11D
3
6
7
IO1
1
U11C
GND
GND
GND
U11B
3
6
7
U11A
1
GND
GND
GND
4
GND
GND
GND
5
U11E
1K 0402
64
10
9
43
8
7
6
5
22
4
3
23
1
24
DEV_OE
44
DEV_CLRN
B
2
25
JTAG
GCLK1
GCLK3
DEV_OE
13
63
9
31
45
59
80
94
C33
0.1uF
0402
C34
0.1uF
0402
C35
0.1uF
0402
C36
0.1uF
0402
C37
0.1uF
0402
C38
0.1uF
0402
TCK
4
4
BYP
C52
10uF
6.3V
5V
2
R43
1.0K
V+
8V
JP8
V+
B
U17
LT1964ES5-SD
TDO
2
-9V / -10V
VCCINT
VCCINT
VCCIO1
VCCIO1
VCCIO1
VCCIO2
VCCIO2
VCCIO2
3
C54
1uF
16V
GND
GND
GND
GND
GND
GND
GND
GND
10
11
32
46
60
93
65
79
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
SHDN
R42
5.62K
C50
0.01uF
E10
R54
6.49K
TDI
EPM240GT100C5N
A
2
SEN
TMS
U11F
+1.8V
C32
0.1uF
0402
5
DEV_CLRN
E11
+3.3V
OUT
IN
C51
1uF
16V
EPM240GT100C5N
R24
1K
C31
0.1uF
0402
8
GCLK2
1
1
R23
62
V+
U16
LT1763CS8
9V-10V
GCLK0
3
1K 0402
14
3
1
IN
OUT
SHDN
GND
ADJ
5
R28
2.0K
4
R29
1.0K
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
JW
GUY H.
V-
1
J5
R22
12
-3.6V
2
V-
GND
E12
JP7
V-
C53
10uF
6.3V
3
R21
10K
CLK
1K 0402
GND
GND
GND
+3.3V
R20
3
6
7
+3.3V
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
LOW POWER, LOW NOISE ADC
SIZE
N/A
SCALE = NONE
2
DATE:
IC NO.
LTC23XXCMS FAMILY
DEMO CIRCUIT 1813A
05-26-11
SHEET 2
1
REV.
2
OF 2
A
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