DC854C - Schematic

OVP
U4
5
3
JP1
OVP
GND
2
NC7SV86P5X
1
4
2
3
1
C1
0.1uF
OVP
20
U2
VCC
B1
A1
3
A0
2
B0
J1
R5
15
16
50
51
CLKOUTA
CLKOUTB
40
OFB
39
9
Ain-
10
GND
11
GND
DB15
38
12
ENC+
13
DB10
33
2
3
4
4
6
6
5
RN1A
33
5
7
33
7
8
8
RN1B
9
9
10
10
1
RN1C
33
10
11
RN1D
33
11
12
12
GND
13
33
13
14
14
RN2A
15
33
15
16
16
RN2B
17
33
17
18
18
RN2C
20
19
33
19
20
20
RN2D
21
RN3A
33
21
22
22
VCC
23
23
24
24
33
25
25
26
26
A7
9
RN3B
B6
A6
8
RN3C
33
27
28
7
33
28
A5
RN3D
27
B5
29
30
A4
6
33
30
B4
RN4A
29
31
32
A3
33
32
B3
RN4B
31
5
33
34
4
33
34
A2
RN4C
33
B2
35
36
A1
3
33
36
B1
RN4D
35
37
37
38
38
A0
2
39
39
40
40
T/R
1
GND
10
B7
B0
OE
3201S-40G1
1
4
R17
10K
U6
24LC025
2
U5
NC7SV86P5X
1
2
3
4
C14
0.1uF
32
31
30
29
28
2
3
74VCX245BQX
OVdd
Vdd
OGND
34
16
DB9
35
DB11
DB8
DB12
Vdd
DB7
36
GND
15
DB6
37
DB13
DB5
DB14
ENC-
14
19
1
5
Ain+
*
1
T/R
OE
49
OVdd
DA8
DA7
OGND
52
54
55
56
53
DA9
DA10
DA11
57
58
59
61
62
60
OFA
DA12
14
41
U1
Vdd
C16
0.1uF
46
DA0
GND
17
C15
0.1uF
DA4
18
27
5.1
C12
0.01uF
13
17
DB4
R29
47
42
26
ETC1-1-13
R33
100
DA5
43
25
C11
8.2pF
R28
49.9
1
DA6
12
DA1
DB3
3
5.1
11
48
33
OGND
R4 TBD
17
Vdd
DB2
5
4
44
DB1
0.01uF
A2
DA2
24
C30
R27
49.9
2
J3
B2
DA3
23
4
16
GND
DB0
0.01uF
5
Vdd
6
R26
C10
A3
5
8
T2
6
B3
45
7
ENCODE
INPUT
A4
4
22
C8
2.2uF
DA13
Vcm
DA14
GND
DA15
Sense
2
3
100
C3
0.01uF
1
21
R8
C9
0.01uF
1K
1
10
10
LVDS
*
R14
DITH
C6
0.01uF
B4
15
U3
63
R13
C7
*
R12
33.2
ETC1-1-13
7
14
OVP
*
RAND
C28
1
MODE
*
*
2
5
SHDN
R31
1
GND
5
R32
A5
74VCX245BQX
20
2
J2
C5
19
3
B5
3
* T3
18
4
64
3
8
13
19
PGA
T1
4
2
9
A6
18
10
R11
33.2
3
L1
VDD
GND
2
A7
B6
2.2uF
*
VDD
GND
R10
B7
12
3
R9
10
C4
0.01uF
ANALOG
INPUT
R30
11
C2
*
R3
JP4
RAND
JP3
PGA
1
1
R2
10K
1K
R1
10K
OPEN
VDD
2
R7
JP2
SENSE
R6 TBD
3
VDD
A0 VCC
A1 WP
A2 SCL
A3 SDA
R18
10K
R19
10K
C13
0.1uF
8
7
6
5
C17
0.1uF
C18
0.1uF
C19
0.1uF
VDD
R20
10K
R21
10K
*
Assembly Type
1
GND
VDD
VERSION TABLE
U1
T3
C5
C7,C28
R30,R31,R32
L1
INPUT FREQUENCY
Bits
Msps
3
2
JP6
DITH
GND
VDD
2
1
JP5
SHDN
3
OVP
VDD
R25
VDD
E1
+ C27
100uF
6.3V
opt.
VDD
+3.3V
1
C23
4.7uF
IN
7
6
5
GND
DC854D-A
LTC2208CUP
ETC1-T1
4.7pF
8.2pF
86.6 ohm
56nH
1MHz < Ain < 70MHz
16
130
E3
DC854D-B
LTC2208CUP
WBC1-1L
1.8pF
open
open
0 ohm
70MHz < Ain < 140MHz
16
130
E4
DC854D-C
LTC2208CUP-14
ETC1-T1
4.7pF
8.2pF
86.6 ohm
56nH
1MHz < Ain < 70MHz
14
130
DC854D-D
LTC2208CUP-14
WBC1-1L
1.8pF
open
open
0 ohm
70MHz < Ain < 140MHz
14
130
R22
105K
U7
8
C22
OUT
1
GND
ADJ
2
GND
GND
3
SHDN
BYP
4
1.0uF
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.
C25
0.1uF
R23
100K
C21
0.01uF
LT1763
OVP
C20
10uF
6.3V
CONTRACT NO.
APPROVALS
DRAWN
June Wu
DATE
10/25/04
CHECKED
TECHNOLOGY
TITLE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC2208 FAMILY
16-BIT HIGH SPEED ADC
APPROVED
ENGINEER D. Redmayne
C26
0.1uF
10/25/04
DESIGNER
Thursday, May 11, 2006
SIZE
CAGE CODE
SCALE:
FILENAME:
DWG NO
REV
DC854D
SHEET
D
1
OF
1
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