OP270
+5V
21
+15V
+15V
+5V
21
V
DAC8221HP
DD
0.01F
V
DD
DAC8221HP
V
A
4
2
0.01F
10F
REF
R
A
FB
3
R
A
FB
3
+
V
A
IN
20M⍀
10F
–
+
–
I
A
OUT
2
–
8
DAC A
V
A
I
A
4
2
1
REF
OUT
2
3
8
V
1/2
OP270EZ
DAC A
–
1
IN
1/2
OP270GP
V
A
1
OUT
OUT
3
+
4
AGND
+
4
DAC DATA BUS
PINS 6 (MSB) - 17 (LSB)
AGND
–
+
1
0.1F
10F
R
B
FB
23
–
+
V
B
IN
0.1F
10F
–15V
R
B
–15V
FB
I
B
23
24
24
OUT
6
DAC B
–
1/2
7
V
B
I
B
22
18
REF
OUT
6
5
OP270GP
NC
DAC B
–
V
B
OUT
5
20M⍀
1/2
OP270GP
7
+
OUT
DAC DATA BUS
PINS 6 (MSB) - 17 (LSB)
DAC A/DAC B
+
V
B
22
REF
18
19
20
WRITE
CONTROL
19
20
CS
WRITE
CONTROL
DGND
5
WR
DGND
5
Figure 17. Dual Programmable Gain Amplifier
Figure 15. Digital Panning Control
A OUT
A OUT
5V 5V
1ms
Figure 16. Digital Panning Control Output
REV. C
–13–
ADI [ ADI ]
