+15V
R3
200K 5%
12
13
+5V
U2
74LS240
20
1Y1
33
31
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1G
10
+5V
U3
74LS240
2
4
6
8
11
13
15
17
19
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
2G
P2
1
3
5
B7
7
B6
9
B5
24
22
20
12
B4
26
14
B3
28 MSB 29
27
25
23
21
19
16
30
B2
SG3
18
32
B1
SG2
2
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
2G
4
6
6
AD845
4
13
11
+5V
8
C16
0.1MF
C1
0.1MF
+15V
74LS86
U4
11
R5
2K .1%
C2
15pF COG
ADS-929
OFFSET
ADJ
R2
20K
-15V
C4
2.2MF
P4
50
2
U5
+
3
7
0.1%
R6
2K 0.1%
R4
1.98K
+
C3
0.1MF
ANALOG
INPUT
GAIN
ADJ
R1
+
J5
C21
0.1MF
15
17
19
13
14
3
15
16
17
18
19
C9
2.2MF
20
21
22
C12
0.1MF
23
24
-15V
+15V
+5V
C15
0.1MF
P3
J1
1
J2
2
C24
7
NOTES:
Y1
1
SEE NOTE 1
XTAL
7
8
+5V
C18
0.1MF
14
+
2.2MF
74LS86
U4
3
START
CONVERT
14
74LS86
4
5
U4
6
C13
0.1MF
C14
2.2MF
20
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
1G
10
18
16
14
12
9
7
5
3
1
B8
B9
B10
B11
B12
B13
B14
C23
0.1MF
+
0.1%
C17
0.1MF
R7
10K 0.1%
7
6
OP-77
4
+5V
C22
2.2
-15V MF
U6
2
R8
10K
-15V
C6
2.2MF
+
+15V
C5
0.1MF
C7
0.1MF
C8
2.2MF
C19
2.2MF
+
C20
0.1MF
P1
18
16
14
12
10
8
6
17
15
13
11
2
4
1
3
6
C10
0.1MF
-15V
5
+
8
7
10
9
+
+
+
6
+15V
C11
2.2MF
9
10
1. SG1 SHOULD BE OPEN. SG2 &
SG3 SHOULD BE CLOSED.
2. FOR ADS-916 Y1 IS 500 KHZ.
FOR ADS-917 Y1 IS 1 MHZ.
FOR ADS-919/929 Y1 IS 2 MHZ.
9
7
LSB 5
4 EOC 3
2
ST.CONV.
1
12 11
14 13
ADS-916/917/919/929
12
+5V
B3
11
DGND
B4
10
EOC
B5
9
ST. CONV
B6
8
B2
B7
7
U1
B1
B8
6
AGND
B9
5
INPUT
B10
4
+10VREF
B11
3
+15V
B12
2
AGND
B13
1
-15V
B14
16 15
18 17
20 19
34 ENABLE
22 21
24 23
J3
8
U4
74LS86
J4
25
26
®
SG1
Figure 5. ADS-929 Evaluation Board Schematic
®
MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
