Datasheet

EVAL-AD5428/AD5440/AD5447EB
Rev. 0 | Page 5 of 8
EVALUATION BOARD SCHEMATIC
05274-003
V
DD
V
SS
U3
C7
1.8pF
J1
7 4
3 2
6
V–
V+
+
C11
10µF
C9
10µF
C12
0.1µF
C8 0.1µF
C3
10µF
C14 10µF
C16 10µF
C18 10µF
C20 10µF
C4
0.1µF
C13
0.1µF
C15
0.1µF
C17
0.1µF
C21 0.1µF
DGND
C19
0.1µF
C2
0.1µF
C1
0.1µF
C10
0.1µF
+
+
C5
10µF
C6
0.1µF
+
TP1
O/P A
V
DD
V
SS
U7
C22
1.8pF
J6
7 4
3 2
6
V–
V+
+
C25
10µF
C23
10µF
C26
0.1µF
C24
0.1µF
+
TP4
TP3 TP2
O/P B
V
DD
R
FB
B
V
DD
+V
IN
V
OUT
TRIM
GND
U1
AD5447
U6-A
LK1
U2
2
5 3
4 1
V
DD
1
A
B
AGND
23 21
I
OUT
B
24
R
FB
A
3
I
OUT
A
2
V
REF
B
V
REF
A
J5J2
EXT
REF B
EXT
REF A
22 4
1
17 18 1
3
1
4
2
2
2
1
2
0
1
9
2
3
2
4
1
5
1
6
5
6
1
2
1
1
1
0
9
8
7
2
1
3
4
B
5
B
4
O
E
A
B
L
E
A
B
B
0
B
1
B
2
B
3
C
E
B
A
B
7
B
6
A
2
A
3
G
N
D
C
E
A
B
A
7
A
6
A
5
A
4
O
E
B
A
L
E
B
A
A
0
A
1
5
6
1
2
1
1
1
0
9
8
7
2
1
3
4
B
5
B
4
O
E
A
B
L
E
A
B
B
0
B
1
B
2
B
3
C
E
B
A
B
7
B
6
A
2
A
3
G
N
D
C
E
A
B
A
7
A
6
A
5
A
4
O
E
B
A
L
E
B
A
A
0
A
1
3
1
2
A
0
A
1
V
CC
V
CC
V
C
C
V
CC
V
C
C
P
1
–
3
1
P
1
–
1
P
1
–
8
P
1
–
9
P
1
–
3
6
P
1
–
1
4
P
1
–
7
P
1
–
6
P
1
–
5
P
1
–
4
P
1
–
3
P
1
–
2
J
4
J
3
U5 U4
74ABT543
74ABT543
74139
1
7
1
8
1
3
1
4
2
2
2
1
1
1
1
2
9
1
0
5
4
7
6
2
0
1
9
2
3
2
4
1
5
1
6
D
B
0
1
8
D
B
1
1
7
D
B
7
1
1
D
B
8
1
0
D
B
9
9
D
B
1
0
8
D
B
1
1
7
C
S
1
9
R
W
2
0
6
D
B
6
1
2
D
B
5
1
3
D
B
4
1
4
D
B
3
1
5
D
B
2
1
6
5
D
G
N
D
D
G
N
D
D
G
N
D
D
B
0
D
B
1
D
B
7
D
B
8
D
B
9
D
B
1
0
D
B
1
1
C
S
R
/
W
D
A
C
_
A
/
B
D
B
6
D
B
5
D
B
4
D
B
3
D
B
2
E
Y
3
Y
2
Y
1
Y
0
U6-B
1
3
1
5
1
4
A
0
A
1
E
Y
3
Y
2
Y
1
Y
0
P1–19 P1–20 P1–21 P1–22 P1–23 P1–24 P1–25 P1–26 P1–27 P1–28 P1–29 P1–30
P
2
–
3
P
2
–
2
P
2
–
1
P
2
–
4
A
G
N
D
V
SS
V
DD
1
V
DD
+
P
2
–
6
P
2
–
5
+
+
+
V
CC
Figure 3. Evaluation Board Schematic