CA3020, CA3020A
April 1997
8MHz Power Amps For Military,
Industrial and Commercial Equipment
Description
The CA3020 and CA3020A are integrated-circuit, multi-
stage, multipurpose, wide-band power ampli鏗乪rs on a single
monolithic silicon chip. They employ a highly versatile and
stable direct coupled circuit con鏗乬uration featuring wide
frequency range, high voltage and power gain, and high
power output. These features plus inherent stability over a
wide temperature range make the CA3020 and CA3020A
extremely useful for a wide variety of applications in military,
industrial, and commercial equipment.
The CA3020 and CA3020A are particularly suited for service
as class B power ampli鏗乪rs. The CA3020A can provide a
maximum power output of 1W from a 12V
DC
supply with a
typical power gain of 75dB. The CA3020 provides 0.5W
power output from a 9V supply with the same power gain.
Refer to AN5766 for application information.
Features
鈥?High Power Output Class B Ampli鏗乪r
- CA3020 . . . . . . . . . . . . . . . . . . . . 0.5W (Typ) at V
CC
= 9V
- CA3020A . . . . . . . . . . . . . . . . . . 1.0W (Typ) at V
CC
= 12V
鈥?Wide Frequency Range . . Up to 8MHz with Resistive Loads
鈥?High Power Gain. . . . . . . . . . . . . . . . . . . . . . . . . 75dB (Typ)
鈥?Single Power Supply For Class B Operation With
Transformer
- CA3020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 9V
- CA3020A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 12V
鈥?Built-In Temperature-Tracking Voltage Regulator Provides
Stable Operation Over -55
o
C to 125
o
C Temperature Range
[ /Title
(CA30
20,
CA302
0A)
/Sub-
ject
(8MHz
Power
Amps
For
Mili-
tary,
Indus-
trial
and
Com-
mer-
cial
Equip-
ment)
/Autho
r ()
/Key-
words
(Inter-
sil
Corpo-
ration,
Semi-
con-
ductor,
single,
power
ampli-
鏗乪r,
class b
ampli-
鏗乪r,
mili-
tary
Applications
鈥?AF Power Ampli鏗乪rs For Portable and Fixed Sound and
Communications Systems
鈥?Servo-Control Ampli鏗乪rs
鈥?Wide-Band Linear Mixers
鈥?Video Power Ampli鏗乪rs
鈥?Transmission-Line Driver Ampli鏗乪rs (Balanced and
Unbalanced)
鈥?Fan-In and Fan-Out Ampli鏗乪rs For Computer Logic Circuits
鈥?Lamp-Control Ampli鏗乪rs
鈥?Motor-Control Ampli鏗乪rs
鈥?Power Multivibrators
鈥?Power Switches
Ordering Information
PART NUMBER
CA3020
CA3020A
TEMP.
RANGE (
o
C)
-55 to 125
-55 to 125
PACKAGE
12 Pin Metal Can
12 Pin Metal Can
PKG.
NO.
T12.B
T12.B
Pinout
CA3020
(METAL CAN)
TOP VIEW
V-
BUFFER AMP
OUT
DIFF IN2
DIFF IN3
OUTPUT 4
3
4
5
6
7
8
2
12
1
11
RB11
BUFFER
10
AMP IN
9
V
CC1
RB8
Schematic Diagram
9
R
10
R
11
1.5K
8
11
1.5K
10
Q
1
1
D
1
D
2
D
3
Q
2
R
5
10K
Q
3
R
5
R
2
12K
0.47K
12
2
R
4
R
1
R
3
R
6
0.3K
R
9
4
Q
6
Q
4
5
6
Q
7
7
OUTPUT 5
OUTPUT 7
3
Q
5
OUTPUT 6
R
8
0.3K
The resistance values included on the schematic diagram have been supplied as a convenience to assist
Equipment Manufacturers in optimizing the selection of 鈥渙utboard鈥?components of equipment designs.
The values shown may vary as much as 30%.
Intersil reserves the right to make any changes in the Resistance Values provided such changes do not
adversely affect the published performance characteristics of the device.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright 漏 Intersil Corporation 1999
File Number
339.5
3-1
INTERSIL
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