DC427B - Schematic

5
4
3
2
1
Optional DC-Accurate Filter
Vdd2
R1
1.5M
Vdd
R2
1K
BNC
C
GND
IN 2
E5
E6
3
R7 0
49.9
2
BNC
7
ENABLE
VDD
C6
0.01uF
*
3
5
C7A
OUT RTN
1
GND
Vss
1
4
R19 ACTIVE GND
opt.
6
C10
GND
VSS
0.01uF
1
Vdd
E9
10uF
Vss
R12
Vss
7
2 -
*
Vss
V+
3 +
*
V-
4
C13
E8
U3
LT1494CS8
Buffered and
Filtered Output
C12
B
0.01uF
Vss2
E12
Vdd
E11
E13
E14
E15
E16
E17
E18
E19
Vdd2
R15
ASSEMBLY TYPE
Optional Filter & Buffer
E20
R14
0
Vss
0
Vss2
CONTRACT NO.
* VERSION TABLE
U1
C3
C6
C7A
C9
DC427B-A
LTC1966CMS8
0.22uF
0.22uF
1.0uF
DC427B-B
LTC1967CMS8
0.47uF
0.47uF
DC427B-C
LTC1968CMS8
2.2uF
2.2uF
APPROVALS
R4
R5
R10
R11
R12
R6/R8
1.0uF
C13
0.1uF
681K
200K
38.3K
182K
274K
10K
2.2uF
2.2uF
0.22uF
402K
118K
23.2K
102K
174K
1K
APPROVED
10uF
10uF
1.0uF
100K
29.4K
5.6K
24.9K
43K
499
ENGINEER Cheng-Wei Pei
DRAWN
June Wu
DATE
6/24/04
CHECKED
6/24/04
DESIGNER
Tuesday, September 28, 2004
5
0.01uF
6
R11
R10
E10
Vss
A
OutRtn
C15
*
*
GND
C
Vdd2
JP5
C11
Raw Output
*
C9
C8
0.1uF
2
3
GND
E7
Vss
VSS
2
E4
Not Buffered
C7B
(OPT)
*
*
JP3
2
IN2
TP2
JP4
R5
*
JP6
Vdd
Not Buffered
U1
IN1
C16
0.01uF
B
D
Filtered Output
*
C5
Vout
R8
3
R9 0
49.9
8
*
1
R17
opt.
R18
E1
*
R4
0.01uF
*
J2
C14
C3
1
R16
V-
U2
LT1494CS8
Vss2
2
J1
6
4
1K
2
E3
R3
1M 2 -
10uF
TP1
JP2
ACTIVE GND
R6
IN 1
+
V+
3
R13
1
E2
EN
C2
3
3
1
OFF ON
C4
0.1uF
C1
0.01uF
7
3
JP1
Vdd
2
D
Vdd2
4
3
2
TECHNOLOGY
TITLE
SIZE
LTC1966CMS8
LTC1967CMS8
LTC1968CMS8
CAGE CODE
SCALE:
FILENAME:
DWG NO
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
RMS to DC Converter
REV
B
DC427B
SHEET
1
1
OF
1
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