AD2S80A
REV. B
–15–
13
30
1
2
40
39
5
6
7
36
35
34
3
4
38
37
833
9
32
10 31
11
12
29
28
14
27
15 26
16 25
17 24
18 23
19
22
20 21
1M⍀
4.7M⍀
R2
15k⍀
C2
2.2nF
R3
100k⍀
C3
100nF
C1
15k⍀
100nF
MSB
LSB
DATA
OUTPUT
+12V
SIN HIGH
SIN LOW
COS LOW
REF LOW
COS HIGH
REFERENCE
INPUT
RESOLVER
SIGNALS
R6
56k⍀
R4
130k⍀
R5
180k⍀
C4
1.3nF
C5
6.8nF
68⍀
470pF
100nF
VELOCITY
O/P
–12V
0V
RIPPLE CLK
DIRECTION
BUSY
DATA LOAD
SC2
INHIBIT
BYTE SELECT
ENABLE
100nF
+5V
2.2nF
R1
C6
R7
(Not to Scale)
TOP VIEW
AD2S80A
PIN 1
Figure 8. Typical Circuit Configuration
360
0
20
90
45
4
180
135
225
270
315
16128
TIME – ms
24
ANGLE – Degrees
0
Figure 9. Large Step Response Curves for Typical Circuit
Shown in Figure 8
10M
10k
–40
1M
100k
–20
12010080
604020
0
TEMPERATURE – ⴗC
MTBF – Hours
Figure 10. AD2S80A MTBF Curve
