Datasheet

AD8331/AD8332/AD8334
Rev. G | Page 49 of 56
EVALUATION BOARD SCHEMATICS
COM34
VOL2
VOH2
VOH1
VOL1
COM12
VPS34
COMM34
LM D 2
LO N2
INH2
VOH3
VOH4
VOL3
VOL4
VP SV2
COM12
25 26 2717 18 19 21 22
23
24
15
16
8
7
6
5
1
4
3
2
14
13
9
12
11
10
50 4 956 55 5154 53 52
35
36
37
38
42
39
40
41
34
33
30 31 32
48
47
43
46
45
44
58
57
5962 61 60
VPS2
VIP2
VIN2
LO P2
VPS3
VIP3
VIN3
LM D 3
LO N3
INH3
LO P3
NC
COM3
COM4
LMD4 IN H4
VCM4
VCM3 HILO
CLMP34
LON4 VPS4 VIP4 VIN4 LOP4 NC NC
3
NC
3
MODE
LMD1 LON1
VPS1
IN H1
COM1
63
LOP1
VIP1 VIN1
EN12
VCM1
COM2
GAIN12
VCM2
CLMP12
EN34
NC
64
20
C7
0.1 µF
INH2
IN2
C8
22 pF
L7
120 nH
CF B 2
18 nF
C2
0.1 µF
LO2
1
R15
1
0
R14
1
0
RFB2
27 4
C69
0.1 µ F
L2
12 0 nH
C71
0.1 µF
L3
12 0 nH
C3
0.1µF
C9
0.1 µF
INH3
C10
22 pF
L6
12 0 nH
CFB3
18 nF
LO3
1
R18
1
R19
1
RFB3
274
C26
0.1 µF
C27
0.1 µ F
C21
0.1 µF
C22
0.1 µF
IN3
CFB4
18 nF
C11
0.1 µ F
L8
12 0 nH
C12
22 pF
C4
0.1 µF
RFB4
274
C32
0.1 µF
C31
0.1 µF
LO4
1
R23
1
R22
1
+5V
C1 3 0.1
µF
L4
12 0 nH
C62
0.1 µF
C6 4 0.1 µF
R50
4.02k
C55 0.1
µF
+5V
VO2
L1 3
120 nH
L1 1
120 nH
RX4
100
RX3
100
VO 1
L10
12 0 nH
L9
12 0 nH
RX2
100
RX1
100
C75
0.1 µF
L12
120 nH FB
+5V
VO 3
L14
12 0 nH
L15
12 0 nH
RX5
100
RX6
100
VO 4
L16
12 0 nH
L17
12 0 nH
RX7
100
RX8
10 0
L34
120 nH
+5 V
C77
0.1 µF
+5V
CFB1
18 nF
C5
0.1 µF
INH1
L5
12 0 nH
C6
22 pF
C1
0.1 µF
RFB1
274
C17
0.1 µF
C16
0.1 µ F
LO1
1
R11
1
R1 0
1
+5
V
L1
12 0 nH
C67
0.1 µF
CLMP12
R49
4. 02k 
C53 0.1
µF
C8 2
1nF
C59
0.1 µF
C57
0.1 µF
IN4
IN1
HI
LO
SLOPE
D
U
E
D
E
D
C8 0 1nF
+5 V
+5 V
28
29
GAIN34 GAIN34
+5
V
EN34
EN12
HIL O
+5V
+
C14
10 µF
GND1 GND2 GND3 GND6GND5GND4
ICR4
CR4
12
3
ICR3
CR3
12
3
ICR2
CR2
1
2
3
ICR1
CR1
12
3
CLMP34
NOTES
1
COMPONENTS IN GRAY ARE OPTIONAL USER SUPPLIED.
2
NC = NO CONNECT.
03199-124
AD8334
NC
Figure 115. AD8334-EVALZ Schematic