DC819A - Schematic

1
2
REVISION HISTORY
This circuit is proprietary to Linear Technology and supplied
for use with Linear Technology parts.
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
Applications Engineering for assistance.
ECO
REV
DESCRIPTION
DATE
PROTO
1
APPROVED
08/02/04
V+
+/-250V INPUT RANGE
2 2
3 +
0402
1
4
8
3
2
J3
1
VREF
3
1
JP3
JP4
1
3
A
3
V-
V+
7
3
1
3
2
2
5
4
3
2
JP8 1
1
2
3
P1
P3
P9
U2
LT1991CMS
JP10
1
JP11
1
2
3
JP26
R2 49.9 1%
6
REF
2
1
3
M9
M3
M1
4
J1
5
4
3
2
VIN+
JP9 1
8
9
10
5
J2
2
VIN-
JP7 1
3
2
JP6 1
0402
1
2
3
4
5
6
1
J4
VOUT
2
3
4
5
2
5
4
3
2
1
JP5
R1 49.9 1%
6
2 -
1
JP2
A
U1
LT1990CS8
2
3
7
5
1
JP1
PRECISION MICROPOWER
V-
2
3
3
2
1
JP12
1
JP14
3
3
JP16
1
JP17
1
JP18
1
3
V+
3
30MHz/1000V/uS
3
E3
C3
10nF
X7R
0402
C5
100nF
X5R
0402
C9
4.7uF
X5R
1206
C7
100nF
X5R
0402
JP20
1
JP21
1
M4
M2
M1
1
2
3
P1
P2
P4
U3
LT1995CMS
1
JP22
REF
JP25
2
OPT. COMP
OUT
CONTRACT NO.
1
3
V3
3
1
JP24
V-
0402
IN
5
3
1
JP23
B
R3 49.9 1%
6
4
C8
4.7uF
X5R
1206
C6
100nF
X5R
0402
8
9
10
2
C4
100nF
X5R
0402
3
2
C2
10nF
X7R
0402
1
2
-2.5V
to
-15V
E2
JP19
2
GND
E1
2
+2.5V
to
+15V
2 2
V+
3
B
2
7
2
1
2
JP15
3
2
1
JP13
3
APPROVALS
R4
47
1%
0402
DRAWN
C1
10nF
X7R
0402
ENGINEER
MEI
DATE
08/02/04
CHECKED
DESIGNER
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
TITLE
SCH, LT1990CS8/LT1991CMS/LT1995CMS, CONFIGURABLE GAIN
AMPLIFIERS
APPROVED
Thursday, October 14, 2004
1
TECHNOLOGY
SIZE
CAGE CODE
SCALE:
2
FILENAME:
DWG NO
819A-1.DSN
REV
DC819A
SHEET
1
1
OF
1
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