DC2094A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
C4
OPT
50V
AIN4-
U1
LTC23XX
D
VCCIO
C7
0.1uF
5
2
REF
C12
2.2uF
INT
VIN
VOUT_S GND
GND
GND
REFBUF
REFIN
CNV
SDI
SDO7
SDO-/SDO6
SDO+/SDO5
SCKO-/SDO4
SCKO+/SCKO
SCKI-/SCKI
SCKI+/SDO3
SDI-/SDO2
SDI+/SDO1
SDO0
BUSY
CSL
LVDS/CMOSL
PD
24
37
36
35
34
33
32
29
28
27
26
25
38
39
23
22
3
D
Q
4
VCCIO
5
C16
0.1uF
7
4
2
NL17SZ74
R8
33
R9
0
CSB
U5
3
Q
C13
1uF
R6
33
8
U4
2
JP1
R21
1k
PR
1
EXT
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
CLR
4
1
2
3
5
SHDN
VOUT_F
VCC
OE
6
GND
GND
GND
7
V+
CP
5
1
R7
OPT
8
6
21
19
31
OVDD
16
17
45
VCC
VEE
VEE
*
46
44
41
20
18
15
30
AIN4+
VDD
VDD
VDDL
42
43
40
AIN3+
AIN0AIN0+
AIN1AIN1+
AIN2AIN2+
AIN3AIN3+
AIN4AIN4+
AIN5AIN5+
AIN6AIN6+
AIN7AIN7+
GND
GND
GND
GND
GND
GND
OGND
13
14
11
12
9
10
7
8
5
6
3
4
1
2
47
48
NC7SZ04P5X
5
C11
47uF 10V
1210
X7R
LTC6655BHMS8-5
5V
REFBUF
VDD
4
U7
3
REFBUF
E1
C9
0.1uF
50V
1
VDDL
04-02-15
U3
NC7SZ04P5X
VCCIO
C15
0.1uF
50V
AIN3-
C
VCC
DATE
GUY H.
CLKIN
C6
0.1uF
C14
0.1uF
50V
AIN2+
U2
R5
1k
R3
33
4
A
C10
2.2uF
AIN2-
2
VCC
C8
0.1uF
50V
AIN1+
R4
49.9
1206
R2
33
4
VCCIO
C5
0.1uF
50V
AIN1-
BNC
2
NC7SZ04P5X
WRIN
3
U6
2 B
AIN0+
C3
0.1uF
APPROVED
PRODUCTION
C2
0.1uF
3
VEE
D
J1
CLK
100MHz MAX
2.5VPP
R1
1k
DESCRIPTION
2
VCCIO
C1
0.1uF
3
AIN0-
VCCIO
5
VCCIO
REV
NC7SZ66P5X
33
33
33
33
33
33
33
33
33
33
33
CNV
SDI
SDO7
SDO- /SDO6
SDO+ /SDO5
SCKO- /SDO4
SCKO+ /SCKO
SCKI- /SCKI
SCKI+/SDO3
SDI- /SDO2
SDI+ /SDO1
SDO0
BUSY
CNV
SDI
SDO7
SDO-/SDO6
SDO+/SDO5
SCKO-/SDO4
SCKO+/SCKO
SCKI-/SCKI
SCKI+/SDO3
SDI-/SDO2
SDI+/SDO1
SDO0
BUSY
LVDS/ CMOSL
LVDS/CMOSL
R22
1k
C
SDA
SCL
AIN5-
U8
R23
AIN5+
VCCIO
AIN6-
C17
0.1uF
0402
1
2
3
4
5
6
7
8
9
10
INTL
SCL
NC
SDA
VDD
A0
A1
NC
A2
P0
20
19
18
17
16
15
14
13
12
11
P7
P6
NC
P5
P4
VSS
P3
NC
P2
P1
OPT
WRIN
0402 X 8PLCS
PCF8574TS
WRIN2
R24
R25
33
33
WRIN
SDI_IN
WRIN
SDI_IN
R26
R27
33
33
SCK_IN
CNV_IN
SCK_IN
CNV_IN
R28
33
LVDS /CMOSLIN
LVDS/CMOSLIN
R29
R30
33
33
WRIN2
AUX1
WRIN2
AUX1
R31
33
AUX2
AIN6+
B
B
AUX0
SCK_IN2
VCCIO C19
0.1uF
WRIN2 2
4
1
LVDS/CMOSLIN
OE
4
U9
SDI 2 B
NC7SZ66P5X
GND
A
1
SDI_IN
OE
4
U10
SCKI-/SCKI
VCC
R32
0
2 B
NC7SZ66P5X
VCC
A
1
SCK_IN
OE
4
U11
CNV
2 B
NC7SZ66P5X
GND
GND
3
R33
33 0402
VCC
A
3
NC7SZ04P5X
GND
0402
A
1
CNV_IN
OE
4
U12
NC7SZ66P5X
WRIN2L
WRIN2L
3
NOTES: UNLESS OTHERWISE SPECIFIED
U13
VCC
LVDS/CMOSL 2 B
3
5
VCCIO C22
0.1uF
0402
VCCIO C21
0.1uF
5
5
0402
5
0402
AIN7+
VCCIO C20
0.1uF
5
VCCIO C18
0.1uF
3
AIN7-
1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0603.
A
*
ASSY
-A
-B
-C
-D
-E
-F
U1
LTC2348-18
LTC2347-18
LTC2343-18
LTC2348-16
LTC2347-16
LTC2343-16
SUFFIX
48-18
47-18
43-18
48-16
47-16
43-16
-Bit
18
18
18
16
16
16
Ksps
200
400
600
200
400
600
-CHANNEL
8
4
2
8
4
2
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 PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
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
APPROVALS
4
3
2
TECHNOLOGY
KIM T.
GUY H.
TITLE: SCHEMATIC
8/4/2-CHANNEL, SOFTSPAN, HIGH SPEED, SERIAL, SAR, ADC
SIZE
B
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
IC NO.
LTC23XXILX FAMILY
DEMO CIRCUIT 2094A
04/02/2015, 10:17 AM
REV.
2
SHEET 1
1
OF 4
A
5
4
3
2
1
U14
U15
+16V/+18V
GND
8
E6
C24
47uF 25V
7343
TANT
C25
1uF
25V
IN
OUT
SEN
5
SHDN
-16V/-18V
V+
E3
GND
GND
GND
+16V/+18V
LT1964ES5-SD
LT1763CS8
BYP
E4
1
C26
0.01uF
2
R35
5.62k
C29
10uF
25V
4
D
-16V/-18V
V+
1
E5
2
C27
10uF
25V
C28
1uF
25V
3
GND
OUT
E2
5
R34
11.5k
IN
SHDN
ADJ
4
C23 VEE
10uF
25V
VEE
R36
1k
D
3
6
7
R37
1k
U16
LT1763CS8
8
IN
OUT
5
SHDN
GND
GND
GND
SEN
BYP
E7
C31
0.01uF
2
R38
11.5k
VCC
C32
10uF
25V
4
R39
1k
3
6
7
C30
1uF
25V
VCC
1
U17
LT1763CS8
8
OUT
SEN
5
SHDN
BYP
E8
C34
0.01uF
2
R40
1.07k
4
R41
1k
3
6
7
C
IN
GND
GND
GND
C33
1uF
25V
VCCIO
1
1
2
3
R42
1.58k
VCCIO
+2.5V
C35
10uF
25V
VCCIO
C
+3.3V
JP2
U18
LT1763CS8
8
IN
OUT
5
SHDN
GND
GND
GND
SEN
BYP
E9
C37
0.01uF
2
R43
3.09k
C38
10uF
25V
4
VDD
R44
1k
3
6
7
C36
1uF
25V
VDD
1
U19
LT3021ES8-1.2
AGND
SHDN
6
5
OUT
GND
C39
3.3uF
25V
B
IN
+1.2V
SEN
E10
2
VCCINT
3
C40
10uF
25V
+1.2V
B
4
8
U20
LT1763CS8-2.5
8
OUT
5
SHDN
GND
GND
GND
SEN
BYP
E11
C42
0.01uF
2
C43
10uF
25V
4
+2.5V
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0603.
3
6
7
C41
1uF
25V
IN
+2.5V
1
U21
LT1763CS8
8
OUT
SEN
5
SHDN
CUSTOMER NOTICE
+3V
BYP
E12
1
C45
0.01uF
2
R45
1.43k
4
C46
10uF
25V
+3V
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP
ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
R46
1k
3
6
7
C44
1uF
25V
IN
GND
GND
GND
A
3
2
TECHNOLOGY
KIM T.
GUY H.
TITLE: SCHEMATIC
8/4/2-CHANNEL, SOFTSPAN, HIGH SPEED, SERIAL, SAR, ADC
SIZE
B
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
IC NO.
LTC23XXILX FAMILY
DEMO CIRCUIT 2094A
03/12/2015, 11:32 AM
REV.
2
SHEET 2
1
OF 4
A
5
4
U22B
U22C
IO1
IO2
IO3
IO4
IO5_VREF1
IO6_DIFFL4P
IO7_DIFFL4N
CLK0
CLK1
BANK2
1
2
3
4
7
10
11
22
23
AUX0
AUX1
WRIN2
LVDS/CMOSLIN
2
U22D
BANK1
D
3
CLK2
CLK3
IO1
IO2
IO3_VREF2
IO4_RUP1
IO5_RDN1
IO6
R52
33
CLKIN
BUSY
SDI
R49
33
SDO7
IO1_DIFFIOB1P
IO2_DIFFIOB1N
IO3
IO4
IO5
IO6_VREF3
IO7_DIFFIOB9P
IO8_DIFFIOB9N
IO9
IO10_DIFFIOB11P
IO11_DIFFIOB11N
VCCIO
3
2
1
I/O
LVDS
P1
U22E
SDO-/SDO6
BANK3
24
25
28
30
31
32
33
34
1
R47
0
BANK4
R50
OPT
38
39
42
43
44
46
49
50
51
52
53
54
55
58
59
60
64
65
66
67
68
69
70
71
72
IO1_DIFFIOB12P
IO2_DIFFIOB12N
IO3
IO4_DIFFIOB16P
IO5_DIFFIOB16N
IO6
IO7_VREF4
IO8_RUP2
IO9_RDN2
IO10
IO11
IO12_DIFFIOB21P
IO13_DIFFIOB21N
IO14
SDO+/SDO5
SCKO-/SDO4
R54
OPT
SCKO+/SCKO
CMOS
SCKI-/SCKI
R48
0
R53
OPT
VCCIO
U22F
IO1
IO2
IO3
IO4_RUP3
IO4_RDN3
IO5
IO6_VREF5
IO7
IO8_DIFFIOR8N
IO9_DIFFIOR8P
CLK7_DIFFCLK3N
CLK6_DIFFCLK3P
C
R61
[2]
CYCLONE3-EP3C5E144
U22G
U22H
U22I
R60
10k
BANK5
73
74
75
76
77
79
80
83
84
85
88
89
R59
10k
CYCLONE3-EP3C5E144
BANK6
ID
R65
R67
33
33
CLK5_DIFFCLK2N
CLK4_DIFFCLK2P
IO1
IO2
IO3_VREF6
IO4
SDO0
CSB
LVDS/CMOSL
CNV_IN
SCK_IN
SDI_IN
WRIN
BANK7
90
91
100
104
105
106
D9
D8
SDI-/SDO2
R58
0
R56
OPT
R57
OPT
D7
D6
D5
D4
D3
D2
CNVCLK
R63
R64
R66
R68
33
33
33
33
IO1
IO2
IO3
IO4
IO5_RUP4
IO6_RDN4
IO7_VREF7
IO8_DIFFIOT16N
IO9_DIFFIOT16P
IO10
IO11
IO12_DIFFIOT12N
IO13_DIFFIOT12P
SS0
SS1
SS2
A0
CNVCLK
SYNC
D1
D0
BANK8
110
111
112
113
114
115
119
120
121
124
125
126
127
R62
R70
33
33
A1
A2
R74
R76
R78
R80
R82
R84
R86
R88
R90
33
33
33
33
33
33
33
33
33
IDOUT
D0
D1
SYNC
CNVCLK
D2
D3
D4
D5
128
129
132
133
135
136
137
138
141
142
143
144
IO1_DIFFIOT11N
IO2_DIFFIOT11P
IO3_DIFFIOT10N
IO4_DIFFIOT10P
IO5
IO6_VREF8
IO7
IO8
IO9
IO10
IO11_DIFFIOT01N
IO12_DIFFIOT01P
R69
R71
R72
R73
R75
R77
R79
R81
R83
R85
R87
R89
D17
D16
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
33
33
33
33
33
33
33
33
33
33
33
33
IDOUT
A2
A1
A0
SS2
SS1
SS0
+3V
2
4
6
8
10
VCCIO
CONFIG
VCCIO
C58
0.1uF
C59
0.1uF
C60
0.1uF
C61
0.1uF
C62
0.1uF
C63
0.1uF
C64
0.1uF
C65
0.1uF
C66
0.1uF
C68
0.1uF
C69
0.1uF
+2.5V
C70
47uF
0805
CYCLONE3-EP3C5E144
C71
4.7uF
0603
C72
C73
0.01uF 0.1uF
C74
1nF
C75
22nF
C76
22nF
C77
22nF
C78
4.7nF
+
C87
C88
470uF 4.7uF
7343 0603
C83
C89
C84
0.01uF 0.01uF 0.1uF
6
8
9
12
13
14
15
16
18
20
21
86
87
92
94
96
97
98
99
101
103
CYCLONE3-EP3C5E144
+1.2V
L1
BLM31PG391SN1L
VCCD_PLL
A
C67
0.1uF
IO1_DATA1
IO2_FLASH_NCE
N_STATUS
DCLK
IO3_DATA0
NCONFIG
TDI
TCK
TMS
TDO
NCE
IO4_DEV_OE
IO5_DEV_CLRN
CONF_DONE
MSEL0
MSEL1
MSEL2
IO6_INIT_DONE
IO7_CRC_ERROR
IO8_NCEO
IO9_CLKUSR
C90
0.1uF
C85
0.1uF
C91
0.1uF
C92
0.1uF
C86
2.2nF
C93
4.7nF
1
2
3
4
8
VCC
+3V
8
7
6
5
VCC
VCC
DCLK
ASDI
+3V
C56
0.1uF
R93
4.99k
0603
C57
0.1uF
R94
4.99k
0603
SCL
SDA
WP
A2
A1
A0
6
5
7
3
2
1
SCL
SDA
EEPROM
1
2
3
WP
PROG
B
JP4
J4
HD2X7-079-MOLEX
V+
5V
+2.5V
R101
10k
VCCIO
R102
10k
R103
10k
+3V
+3V
+3V
+3V
R104
1k
D1
BAT54WS
C79
10pF
JTAG
2
4
6
8
10
1
3
5
7
9
TCK
TDO
TMS
TDI
HD2X5-100
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0402.
2. R61 IS O OHMS ON ASSEMBLY TYPES A,B,C,D AND OPTIONAL ON E,F,G,H. (SEE ASSY TABLE ON PAGE 4)
4
NCS
DATA
VCC
GND
TDI
TCK
TMS
TDO
NCE
J3
5
EPCS4SI8
+3V
R91
4.99k
0603
24LC024-I /ST
GND
C55
0.1uF
VCCIO
4
C54
0.1uF
U23
C
3
D2
BAT54WS
D3
BAT54WS
C80
10pF
CS
SCK/SCL
MOSI/SDA
MISO
EEVCC
EESDA
EESCL
EEGND
AUX
D4
BAT54WS
C81
10pF
CUSTOMER NOTICE
C82
10pF
2
6
4
7
5
DC590/DC2026
CNV
SCK_IN2
SDI
SDO0
10
9
11
12
14
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP
ENG.
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.
1
2
GND
GND
GND
C53
0.1uF
R95
10k
R92
4.99k
0603
D
13
8
3
C52
0.1uF
R100
10k
1
C51
0.1uF
R99
10k
1
C50
0.1uF
R98
10k
1
C49
0.1uF
R97
10k
2
C48
0.1uF
5
29
45
61
78
102
116
134
17
26
40
47
56
62
81
93
117
122
130
139
35
107
37
109
R96
10k
C47
0.1uF
0603
U24
1
B
VCCINT
VCCINT
GND
VCCINT
GND
VCCINT
GNDA1 VCCINT
GND
VCCINT
GND
VCCINT
GND
VCCINT
GND
VCCIO1
GND
VCCIO2
GND
VCCIO3
GNDA2 VCCIO3
GND
VCCIO4
GND
VCCIO4
GND
VCCIO5
GND
VCCIO6
GND
VCCIO7
VCCIO7
VCCIO8
VCCIO8
VCCA1
VCCA2
VCCD_PLL1
VCCD_PLL2
1
3
5
7
9
HD2X5-100
U22J
2
PWR
19
27
36
41
48
57
63
82
95
108
118
123
131
140
145
EDGE-CON-100
J2
+1.2V
U22A
FPGA
PROGRAM
ARRAY
CYCLONE3-EP3C5E144
EEPROM
CYCLONE3-EP3C5E144
2
CYCLONE3-EP3C5E144
2
CYCLONE3-EP3C5E144
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
97
99
D11
D10
R55
0
SDI+/SDO1
CYCLONE3-EP3C5E144
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
D13
D12
VCCIO
CYCLONE3-EP3C5E144
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
D15
D14
R51
OPT
SCKI+/SDO3
JP3
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
D17
D16
TECHNOLOGY
KIM T.
GUY H.
TITLE: SCHEMATIC
8/4/2-CHANNEL, SOFTSPAN, HIGH SPEED, SERIAL, SAR, ADC
SIZE
B
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
IC NO.
LTC23XXILX FAMILY
DEMO CIRCUIT 2094A
03/12/2015, 11:32 AM
REV.
2
SHEET 3
1
OF 4
A
3
4
5
6
7
8
J6
JP5
*
AIN1
AIN2
6
-
C104
*
VEE
AIN3
R111
*
R113
*
AIN4
R114
OPT
AIN6
AIN7
VIN2 VIN1
*
AIN1
BNC
JP6
3
0603
C112
0805
OPT
*
2
R129
R127
*
*
C116
OPT
5
C126
0805
OPT
0603
JP7
6
R131
0
-
R137
OPT
R141
OPT
8
3
C136
0805
OPT
0603
B
JP8
2
8-CH
4-CH
2-CH
ASSY
*
-A
-B
-C
-D
-E
-F
D
R118
OPT
C107
OPT
AIN5-
LT1355CS8
C111
270pF
R126
100
1
AIN5+
-
R128
OPT
R130
0
C115
OPT
C
VCC
C121
*
R135
*
AIN6
JP11
0603
*
C124
OPT
*
R153
R155
0
C103
OPT
5
C127
0805
OPT
6
C119
OPT
R132
0
AIN6-
U28B
R136
*
+
*
*
7
-
C123
C129
*
R138
*
R140
R143
OPT
*
AIN7
AIN3+
JP12
*
C137
OPT
0603
3
C138
0805
OPT
2
C131
OPT
R148
0
R147
OPT
+
C125
OPT
R144
OPT
C133
OPT
R151
AIN6+
AIN7-
U28A
C135
R152
*
*
*
1
-
R156
R154
*
*
C141
OPT
AIN7+
B
C139
OPT
AIN7 AIN6 AIN5 AIN4 AIN3 AIN2 AIN1 AIN0
(JP12) (JP11) (JP10) (JP9) (JP8) (JP7) (JP6) (JP5)
X
X
X
U1
(PAGE 1)
A
2
AIN4+
C117
OPT
C134
*
-
R117
OPT
*
R150
1
C140
OPT
*
C113
OPT
C114
0805
OPT
AIN3-
LT1355CS8
+
*
R116
0
+
C130
OPT
U26A
4
AIN3
0603
JP10
3
R142
OPT
R146
0
R145
OPT
R112
U27A
VEE
R139
0
C132
OPT
R149
0
AIN1+
AIN2+
C128
0.1uF
VEE
C105
0.1uF
R122
0
R121
OPT
R125
0
AIN5
C122
270pF
R134
100
7
*
*
C109
OPT
AIN2-
LT1355CS8
+
-
C118
OPT
U26B
4
AIN2
8
R133
0
C120
0.1uF
*
*
1
VCC
6
C99
R110
7
VEE
C110
R123
*
-
C
C102
OPT
AIN1-
U25A
+
JP9
C101
0805
OPT
AIN4-
LT1355CS8
+
C106
OPT
R120
0
R119
OPT
R124
0603
5
C95
OPT
R106
0
U27B
R115
OPT
C108
OPT
AIN5
AIN0+
8
8
C100
0805
OPT
AIN4
C97
0.1uF
4
AIN0
0603
*
*
7
R109
0
C98
R108
*
+
4
2
17
9
18
10
19
11
20
12
21
13
22
14
23
15
24
16
5
8
1
*
AIN0
AIN0-
U25B
8
R107
J7
4
BNC
VCC
C94
OPT
R105
0
8
*
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
VIN2
+/- 10.24V MAX
C96
1
4
VCC
2
8
J5
HD3X8-100
D
3
4
VIN1
+/- 10.24V MAX
4
4
5
LTC2348-18
LTC2347-18
LTC2343-18
LTC2348-16
LTC2347-16
LTC2343-16
X
X
X
X
-CH C96,C104,
C121,C129
8
4
2
8
4
2
5
0.1uF
0.1uF
OPT
0.1uF
0.1uF
OPT
X
C98,
C135
270pF
270pF
OPT
270pF
270pF
OPT
X
X
X
X
X
X
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0402.
R107,R124,R135,R151 (0603)
R108, R110,R123, R111, R112,R127,
C99,C110, JP5,JP6,
R61
C123,C134 JP11,JP12 (PAGE 3) R113,R129,R140,R151,R156 (0402) R152 R136,R150 R154 R138,R153
270pF
OPT
OPT
270pF
OPT
OPT
STUFF
STUFF
OPT
STUFF
STUFF
OPT
0
0
0
OPT
OPT
OPT
0
0
OPT
0
0
OPT
4
100
100
OPT
100
100
OPT
100
OPT
OPT
100
OPT
OPT
OPT
OPT
0
OPT
OPT
0
3
OPT
0
0
OPT
0
0
U25,U28
LT1355CS8
LT1355CS8
OPT
LT1355CS8
LT1355CS8
OPT
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP
ENG.
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.
2
TECHNOLOGY
KIM T.
GUY H.
TITLE: SCHEMATIC
8/4/2-CHANNEL, SOFTSPAN, HIGH SPEED, SERIAL, SAR, ADC
SIZE
B
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
IC NO.
LTC23XXILX FAMILY
DEMO CIRCUIT 2094A
04/02/2015, 10:19 AM
REV.
2
SHEET 4
1
OF 4
A
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