DC1805A - Schematic

5
4
3
2
1
REVISION HISTORY
R7
ECO
REV
-
2
33
GND VOUT_S
6
4
GND
5
GND
R6
OPT
+3.3V
4
6
C5
10uf
U4
NL17SZ74
GND
C6
0.1uF
CLR
VCC
8
PR
7
C7
0.1uF
5
7
R8
33
4
D
2
DB17
DB16
C9
47uF
6.3V
0805
+3.3V
+5V
DB17
DB16
REF / SEL
C19
JP3
CNV
0.1uF
C32
OPT
6.3V
AIN+
BNC
R24
OPT
C31
OPT
C12
4.7uF
0805
R26
1K
8
SDO
14
SDO
BUSY
11
BUSY
ROL/SDI
12
RD
U8
LTC2380CMS-16
LTC2378CMS-16
LTC2377CMS-16
LTC2376CMS-16
-F
LTC2378CMS-18
1.6
1.0
-G
LTC2377CMS-18
0.5
-H
LTC2379CMS-18
LTC2376CMS-18
CHAIN
BUSY
A
1
OE
4
U6
NC7SZ04P5X
4
2
R22
2k
C21
0.1uF
40
40
37
38
38
DB1
35
35
36
36
DB2
33
33
34
34
DB3
31
31
32
32
DB4
29
29
30
30
DB5
27
27
28
28
DB6
25
25
26
26
DB7
23
23
24
24
DB8
21
21
22
22
DB9
19
19
20
20
DB10
17
17
18
18
DB11
15
15
16
16
DB12
13
13
14
14
DB13
11
11
12
12
DB14
9
9
10
10
DB15
7
7
8
8
5
5
6
6
3
3
4
4
1
1
2
2
CLKOUT
RD
C
MSPS
2.0
1.0
0.5
0.25
0.25
3201S-40G1
R20
1k
B
BITS
16
16
16
16
18
18
C28
0.1uF
9V-10V
SDO
18
SDO
18
J5
DC590
1
3
5
7
9
11
13
2
4
6
8
10
12
14
SCK
CNV
SCL
SDA
WP
6
5
7
A2
A1
A0
3
2
1
SCK
CNV
R31
4.99k
U10
24LC024-I/ST
R32
4.99k
R33
4.99k
JP4
WP
HD2X7-079-MOLEX
PROG
C33
OPT
A
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603.
2. INSTALL SHUNTS AS SHOWN.
A
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
R21
1k
39
37
1
GND
ASSY
-A
-B
-C
-D
-E
SCK
B
5
13
R30
1k
C30
OPT
*
2
3
SCK
REF/SEL
7
REF
16
GND
GND
10
GND
IN-
R29
0
0402
C29
3900pF
NPO
1206
VDD
2
5
OVDD
IN+
9
8
C16
R5
0
4
CNV
VCC
EXT VCM
R23
0
C27
3900pF
NPO
1206
U7
NC7SZ66P5X
C20
0.1uF
VSS
0.01uF
0402
E2
J3
R28
35.7
R19
0
0402
6
5
OUT-
C24
+5V
B
R25
OPT
C26
3900pF
NP0
1206
OUT+
7
6
V-
R27
1k
C15
0.1uF
R18
35.7
DC590_DETECT +3.3V
TO CPLD
0.1uF
0805
39
DB0
4
C22
1uF
C25
OPT
4
1
EXT VOCM
IN-
JP1
V+
8
IN+
EXT
3
REF
SHDN
C23
OPT
6.3V
VOCM
E9
U9
LTC6362CMS8
VOCM
C13
OPT
R17
1k
R12
0
2
R11
OPT
R16
OPT
* U8
LTC23XXCMS
3
BNC
15
AIN-
5
R15
1K
+3.3V
REF
GND
C18
0.1uF
VCC
C17
10uF
6.3V
JP2
GND
C14
OPT
R10
0
C8
0.1uF
C10
0.1uF
PWR ON
SHDN
J2
J4
3
C
+2.5V
EN
R14
1K
C11
10uF
6.3V
CNVST_33
FROM CPLD
U5
NC7SVU04P5X
R9
33
R13
1K
10-14-11
3
8
2
GND
VIN VOUT_F
3
D
SHDN
2
1
1
Q
U2
NC7SVU04P5X
C4
0.1uF
33
CP
5
U1
NC7SZ04P5X
CLK
3
R3
1k
DATE
ERJON Q.
9V-10V
R4
4
APPROVED
E1
5
R1
49.9
1206
2
3
BNC
4
PRODUCTION FAB
+3.3V
EXT REF
U3
LTC6655CHMS8-5
C3
0.1uF
5
2
3
D
+3.3V
C2
0.1uF
R2
1k
C1
0.1uF
J1
CLK
100MHz Max
3.3Vpp
+3.3V
Q
+3.3V
DESCRIPTION
4
3
2
APPROVALS
PCB DES.
NC
APP ENG.
ERJON Q.
TECHNOLOGY
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
LTC6362 DRIVING 18 - BIT SAR ADC
SIZE
IC NO.
N/A
SCALE = NONE
DATE:
LTC6362CMS8
DEMO CIRCUIT1805A - A / H
10-14-11
SHEET 1
1
REV.
2
OF
2
IO51
51
IO76
76
IO26
27
IO52
52
IO77
77
DB3
DB4
IO2
2
DB12
IO27
IO3
3
DB13
IO4
4
DB14
IO28
28
IO53
53
IO78
78
DB5
IO29
29
IO54
54
IO81
81
IO5
5
IO6
6
DB15
CLKOUT
IO30
30
IO55
55
IO82
82
IO33
33
SDO
IO56
56
IO83
83
IO7
IO8
7
IO34
34
SCK
IO57
57
IO84
84
8
IO35
35
RD
IO58
58
IO85
85
IO15
15
IO16
16
IO36
36
61
IO86
86
37
BUSY
SCK
IO61
IO37
IO66
66
IO87
87
IO17
IO18
17
IO38
38
IO38
IO67
67
IO88
88
18
IO39
39
IO68
68
IO89
89
IO19
19
IO40
40
IO69
69
IO90
90
IO20
20
IO41
41
IO70
70
IO91
91
IO21
21
IO42
42
IO71
71
DB16
IO92
92
IO47
47
IO72
72
DB17
IO95
95
IO48
48
IO73
73
DB0
IO96
96
IO49
49
IO74
74
DB1
IO97
97
IO50
50
IO75
75
DB2
IO98
98
IO99
99
IO100
100
CNVST_33
IO21
DC590_DETECT
R44
33
+3.3V
R34
10k
0402
IO56
IO68
R35
300
OPT
0402
C
9V-10V
E4
GND
U11
LT1763CS8-1.8
9V-10V
8
C34
22uF
16V
1210
IN
C35
1uF
16V
5
SHDN
0402 X 3 PLCS
R39
10k
J6
R36
1K
R37
1K
62
R38
1K
GCLK2
14
DB7
64
GCLK3
43
DEV_OE
8
7
44
DEV_CLRN
6
5
22
TMS
4
3
23
TDI
2
1
24
TCK
25
TDO
JP2X5/100
R40
1k
0402
8
IN
C38
1uF
16V
DB8
5
DB9
SHDN
8
IN
C41
1uF
16V
5
SHDN
C47
0.1uF
C48
0.1uF
C49
0.1uF
C50
0.1uF
C51
0.1uF
C52
0.1uF
C53
0.1uF
SEN
2
BYP
4
C39
0.01uF
VCCIO
+2.5V
C40
10uF
6.3V
+3.3V
JP5
R43
1.54k
C
+2.5V
OUT
1
SEN
2
BYP
4
E7
+2.5 V
C43
10uF
6.3V
C42
0.01uF
IN
10
11
32
46
60
93
65
79
+5V
OUT
1
SEN
2
BYP
4
+5 V
C46
10uF
6.3V
GND
GND
GND
C45
0.01uF
SHDN
CUSTOMER NOTICE
C54
0.1uF
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.
4
E8
3
6
7
GND
GND
GND
GND
GND
GND
GND
GND
0402 X 8 PLCS
5
E6
+3.3 V
R42
1.69k
U15
LT1763CS8-5
5
U13F
EPM240T
POWER
A
1
B
C44
1uF
16V
VCCINT
VCCINT
VCCIO1
VCCIO1
VCCIO1
VCCIO2
VCCIO2
VCCIO2
+3.3V
OUT
U14
LT1763CS8-2.5
9V-10V
8
13
63
9
31
45
59
80
94
D
R41
2.80k
9V-10V
+1.8V
4
+1.8 V
DB10
CNTRL
+3.3V
BYP
E5
C37
10uF
6.3V
C36
0.01uF
U12
LT1763CS8
9V-10V
GCLK1
9
SEN
2
IO86
GCLK0
10
JTAG
B
12
CLK
1
DB6
U13E
EPM240T
+3.3V
+1.8V
OUT
3
6
7
DB11
26
1
3
6
7
IO1
1
E3
GND
GND
GND
U13D
EPM240T
U13C
EPM240T
2
3
6
7
D
U13B
EPM240T
3
GND
GND
GND
U13A
EPM240T
4
GND
GND
GND
5
3
2
APPROVALS
PCB DES.
NC
APP ENG.
ERJON Q.
TECHNOLOGY
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
LTC6362 DRIVING 18 - BIT SAR ADC
SIZE
IC NO.
N/A
SCALE = NONE
DATE:
REV.
LTC6362CMS8
DEMO CIRCUIT 1805A - A / H
10-14-11
SHEET 2
1
2
OF
2
A
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