ad875 Analog Devices, Inc., ad875 Datasheet - Page 14

• Manufacturer Part Number: ad875
• Description: 10-bit, Cmos Converter
• Manufacturer: Analog Devices, Inc.

AD875
DGND
AGND
+3.3V
+5VA
+5VD
+5A
ANALOG
INPUT
A
A
WJ1
165
J1
49.9
Reference Designator
U1
U2
U3, U4
R1, R9
R2, R3, R6
R4
R5
R10–R22
C10
C11
C15, C17, C33
C13, C14, C16, C19, C23, C24, C31
C27, C28, C30, C31, C35, C36
P1
J1, J2
340
R1
R4
R5
C16
C14
0.1
0.1
0.01
0.01
C1
C2
0.01
A
C3
C33
10
C10
0.01
FB1
JP2
C11
C15
10
FB2
C17
10
47
A
FB3
A
C5
C4
33
33
REFBF
REFTF
C6
33
REFTF
C21
+3.3D
+5A
+5D
0.1
C8
A
0.1
0.1
C7
C19
C20
C22
30k
REFBS
0.1
R3
REFTS
TP1
0.1
C9
D
C23
+5D
0.1
+5A
D
0.1
0.1
D
A
A
30k
R2
30k
C24
C34
TP1
R6
TP6
25
26
27
28
29
30
31
32
33
34
35
36
D
R9
49.9
REFBF
0.1
10
Figure 20. AD875 Evaluation Board Schematic
NOTE THAT
GROUND PLANE
IS SOLID.
CM
CLOCK INPUT
A
1
2
C16 (OPTIONAL)
100pF
J2
74HC04
TP7
NC
U2
AD875
+5A
U1
Table III. Components List
3
D
C29
0.1
C36
A
0.1
Description
AD875
74HC04
74HC541
Resistor, 51
Resistor, 30 k
Resistor, 165
Resistor, 340
Resistor, 22
Capacitor, Electrolytic, 47 F
Capacitor, NPO Ceramic, 0.01 F
Capacitor, Electrolytic, 10 F
Capacitor, X7R Ceramic, 0.1 F
40-Pin IDC Connector
BNC Jack
+5D
4
C27
C28
0.1
0.1
D
D
–14–
D
NOTE:
ALL CAPACITOR VALUES ARE IN µF.
12
11
10
9
8
7
6
5
4
3
2
1
Resistor Network
D
D
D
D
D
D
10
10
+3.3D
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
C13
0.1
U3
74HC541
U4
74HC541
G1
D1
D2
D3
D4
D5
D6
D7
D8
GND
G1
D1
D2
D3
D4
D5
D6
D7
D8
GND
V
V
Q1
Q2
Q7
Q1
Q2
Q7
G2
Q3
Q4
Q5
Q6
Q8
G2
Q3
Q4
Q5
Q6
Q8
CC
CC
+3.3D
20
19
18
17
16
15
14
13
12
11
+3.3D
20
19
18
17
16
15
14
13
12
11
D
D
C30
0.1
C31
0.1
Quantity
1
1
2
2
3
1
1
1
1
1
3
12
1
2
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
22
22
22
22
22
22
22
22
22
22
22
22
22
UNR OVR
MSB
LSB
D
CONNECTOR
1
40-PIN IDC
P1
D
REV. 0
40