Linear Technology LTC2418, Demo Manual

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5
dc571af
DEMO MANUAL DC571A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SCHEMATIC DIAGRAM
5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
2.
INSTALL SHUNT ON JP1-JP5 PIN 1 AND 2.
1.
ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS,
0603.
NOTE
S: UNLESS OTHERWISE SPECIFIED
EXT 5V
EX
T
GND EX
T
GND
60Hz 50Hz
NORMA
L
TRIGGE
RE
D
A
DC571A-1 * LTC2418CGN
Thursday,
Ja
nu
ar
y 0
9,
2
00
3
11
8-CHANNEL DIFFERENTIAL 24-BIT ADC
KIM T. MARK T
.
A
SCHEMATIC
SI
ZE
DATE:
DWG N
O
.
R
E
V
SHEET
OF
TI
TLE:
CONTRACT NO
.
APPROVA
LS
DRAWN: CHECK
ED
:
APPROVED
:
EN
GINEER:
D
ESIGNER:
TECHNOLOGY
Fax: (408)434-0507 Milpitas,
CA 95035
Phone: (408)432-1900 1630 McCar
th
y
B
lv
d.
LTC Confidential-For Custo
m
er
U
se
O
nl
y
TRIG
MOSI CS
MOSI SCK
SCK
CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7
CH15 CH14 CH13 CH12 CH11 CH10 CH9 CH8 COM
COM
VOUT
REF+
REF+
CS/
VI
N
REF-
REF-
MISO
VCC
FO SDO
VCC
VCC
VCC
VCC
VCC
E21
REF+
E10 GND
C6 0.1UF
JP3 REF-
1 3
2
U5
LT1236ACS8-5
1 2 3 4
5 6 7 8
NC
VIN
NC
GND
TRIM VOUT NC NC
C3 4.7UF,6.3V 0805
JP2 REF+
1 3
2
C4 0.1UF
C5 0.1UF
R4 4.99K 1%
E25
GND
E12 CH6 E14 CH4
E1 GND
E15 CH3
E18 CH0
C2 0.01UF
E16 CH2
U3 24LC025
5 8
1 2 3 4
7 6
SDA VCC
A0 A1 A2 VSS
WP
SCL
JP1 COM
1 3
2
E17 CH1 E13 CH5
R2 100
E11 CH7
E5
CH11
U2 NC7SZ157P6X
3
5 4
1 2
6
I0
VCC
Z
I1 GND
S
C7 0.1UF
E24
GND
E6
CH12
E20
COM
J1
HD2X7-079-MOLEX
8 5
12 11 10
9 6 7 3 4 2 1
13 14
8 5 12 11 10 9 6 7 3 4 2 1 13 14
E19
VCC
JP4
TRIG MODE
1
3
2
E8
CH14
U4
NL17SZ74US
1
6 7
2
3 5
8 4
CP
CLR PR
D
Q Q
VCC GND
E4
CH10
E26 FO
E3 CH9 E7
CH13
E9
CH15
E23
TRIG
C8
0.1UF
E2 CH8
JP5 Fo
1 3
2
R5 10K
R1 OPT
R3 4.99K 1%
E22
REF-
U1 LTC2418CGN
5 8 1 2 3 4 7 6
13 14
20 19 18 17 16 15 26 25 24 23 22 21 27 28
9
10 11 12
CH12 CH15 CH8 CH9 CH10 CH11 CH14 CH13 NC NC
SDI
FO
SCK SDO
CS
GND
CH5 CH4 CH3 CH2 CH1 CH0 CH6 CH7
VCC COM REF+ REF-
C1
10
UF,6.3V 0805