CA3280A Intersil Corporation, CA3280A Datasheet - Page 4
CA3280A
Manufacturer Part Number
CA3280A
Description
Dual 9MHz Operational Transconductance Amplifier (OTA)
Manufacturer
Intersil Corporation
Datasheet
1.CA3280A.pdf
(10 pages)
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Test Circuits and Waveforms
30V
0V
FIGURE 1. LEAKAGE CURRENT TEST CIRCUIT
TEST
POINT
10kΩ
10kΩ
10kΩ
10kΩ
FIGURE 3A. EFFECTS OF DIODE LINEARIZATION, WITH DIODE PROGRAMMING TERMINAL ACTIVE
I
16
15
10
I
9
DIODE
15
16
I
4
DIODE
1/2
CA3280
1
1/2
CA3280
8
I
14
ABC
FIGURE 3B. WITH DIODE PROGRAMMING TERMINAL CUTOFF
1/2
CA3280
3
V-
-15V
3
-
+
11
4
V+
15V
+30V
4
14
I
1
V+
15V
ABC
6
FIGURE 3. CA3280 TRANSFER CHARACTERISTICS
V-
-15V
4
13
12
13
1kΩ
1kΩ
I
I
OUT
OUT
INPUT
I
ABC
FIGURE 2. CHANNEL SEPARATION TEST CIRCUIT
I
ABC
= 650µA, I
1kΩ
= 650µA; I
Horizontal = 25mV/Div.
1kΩ
Horizontal = 1V/Div.
D
0.1
µF
= 200µA; Vertical = 200µA/Div.;
D
16
15
= 0; Vertical = 200µA/Div.;
1/2
CA3280
V
V
+
-
4
IN
IN
30kΩ
V-
14
V+
3
0.1µF
30kΩ
V+
13
OUTPUT
10kΩ