CA3280A Intersil Corporation, CA3280A Datasheet - Page 6

• Manufacturer Part Number: CA3280A
• Description: Dual 9MHz Operational Transconductance Amplifier (OTA)
• Manufacturer: Intersil Corporation

FIGURE 9. CA3280 USED IN CONJUNCTION WITH A CA3160 TO PROVIDE A FUNCTION GENERATOR WITH A TUNABLE RANGE OF
V+
V+
51Ω
51Ω
200Ω
MAX FREQ.
200Ω
2Hz TO 1MHz
10kΩ
SET
2kΩ
2kΩ
100kΩ
3.6kΩ
33pF
33pF
910kΩ
5.6kΩ
16
15
16
15
10
9
V-
6
1/2
CA3280
+
-
1/2
CA3280
+
1/2
CA3280
-
+
3
-
500Ω
1
14
+15V
3
FIGURE 10. TRIANGLE WAVE-TO-SINE WAVE CONVERTER
V+
MIN FREQ. SET
6
8
14
170mV
0.1
µF
+15V
4
100kΩ
FIGURE 8. TWO CHANNEL LINEAR MULTIPLEXER
-15V
15 - 115pF
1kΩ
10kΩ
2kΩ
-15V
13
P-P
13
1
MΩ
12
300pF
1800pF
2kΩ
1MΩ
100Ω
-15V
+15V
10kΩ
V-
6.8
MΩ
2kΩ
16
15
10
9
OUTPUT
2
3
+15V
1/2
CA3280
1/2
CA3280
14
11
+
+
-
-
+
CA3160
-
V- = -7.5V
4
6
3
2
-15V
7
4
30kΩ
7
V+ = +7.5V
1N914
13
12
0.05µF
10kΩ
0.1µF
0.1µF
6
100kΩ
100kΩ
51Ω
200Ω
2kΩ
V+
100kΩ
3.3kΩ
+15V
3
5
100kΩ
14
560kΩ
4 - 60pF
10
9
3.9
kΩ
1/2 CD4013
4
V-
1/2
CA3280
+
-
1
3.3kΩ
6
11
4
1N914
8
6
7
2.7kΩ
12
1
2
V+
V-
1N914
TO 10kΩ
TO 10kΩ
-15V
3
6