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Power Amps. CA3020 Datasheet |
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CA3020, CA3020ACaNlOl CoRerEneCtOmrOaBalMSiAlOM:pLEcpTMEeNlinTcDtEaaEtpiPDopRnR@OsEiD1nP-UtL8eCA8rs8TCi-lEI.NcMToEEmNRTSIL
8MHz Power Amps For Military,
November 2000
Industrial and Commercial Equipment
Title
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Features
• High Power Output Class B Amplifier
- CA3020 . . . . . . . . . . . . . . . . . . . . 0.5W (Typ) at VCC = 9V
- CA3020A . . . . . . . . . . . . . . . . . . 1.0W (Typ) at VCC = 12V
• Wide Frequency Range . . Up to 8MHz with Resistive Loads
• High Power Gain. . . . . . . . . . . . . . . . . . . . . . . . . 75dB (Typ)
• Single Power Supply For Class B Operation With
Transformer
- CA3020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 9V
- CA3020A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 12V
• Built-In Temperature-Tracking Voltage Regulator Provides
Stable Operation Over -55oC to 125oC Temperature Range
Applications
• AF Power Amplifiers For Portable and Fixed Sound and
Communications Systems
• Servo-Control Amplifiers
• Wide-Band Linear Mixers
• Video Power Amplifiers
• Transmission-Line Driver Amplifiers (Balanced and
Unbalanced)
• Fan-In and Fan-Out Amplifiers For Computer Logic Circuits
• Lamp-Control Amplifiers
• Motor-Control Amplifiers
• Power Multivibrators
• Power Switches
Ordering Information
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
PKG.
NO.
CA3020
-55 to 125 12 Pin Metal Can T12.B
CA3020A
-55 to 125 12 Pin Metal Can T12.B
Description
The CA3020 and CA3020A are integrated-circuit, multi-
stage, multipurpose, wide-band power amplifiers on a single
monolithic silicon chip. They employ a highly versatile and
stable direct coupled circuit configuration 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 amplifiers. The CA3020A can provide a
maximum power output of 1W from a 12VDC 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.
Pinout
CA3020
(METAL CAN)
TOP VIEW
BUFFER AMP
OUT
DIFF IN2 2
1
DIFF IN3 3
V-
12 11 RB11
10
BUFFER
AMP IN
9 VCC1
OUTPUT 4 4
8 RB8
5
OUTPUT 5
6
7 OUTPUT 7
OUTPUT 6
Schematic Diagram
98
R10 1.5K
R11 1.5K
11
10 D1
Q1 D2
R4 R1
1 D3
R3 R6
3 Q2 Q3
R5
10K
R5
R212K
0.47K
12
2
0.3K R9
Q4
4
Q6
5
Q5 6
R8
0.3K
Q7
7
The resistance values included on the schematic diagram have been supplied as a convenience to assist
Equipment Manufacturers in optimizing the selection of “outboard” 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 © Intersil Corporation 2000
1
File Number 339.6
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CA3020, CA3020A
Absolute Maximum Ratings
Operating Conditions
Maximum Pin 9 Supply Voltage, VCC1 (Note 1)
CA3020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V
CA3020A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Maximum Pin 9 Supply Current, ICC1 . . . . . . . . . . . . . . . . . . 20mA
Maximum Pin 11 Sink Current, I11 . . . . . . . . . . . . . . . . . . . . . 20mA
Output Voltage, V4 and V7 (Note 1)
CA3020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
CA3020A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Output Current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mA
Input Voltage Range, V2, V3 . . . . . . . . . . . . . . . . . . . . . . -2V to 2V
Maximum Input Voltage, V10 (Ref to Pin 1) . . . . . . . . . . . . . . . . -3V
Maximum Source Current, V1 . . . . . . . . . . . . . . . . . . . . . . . . . 1mA
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC
Thermal Information
Thermal Resistance (Typical, Note 2)
θJA (oC/W) θJC (oC/W)
Metal Can Package . . . . . . . . . . . . . . .
165
80
Maximum Junction Temperature (Metal CanPackage) . . . . . . . 175oC
Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . 300oC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. The voltage ratings for Pin 9, Pin 4 and Pin 7 are referenced to the V- (Pin 12). A normal bias configuration for Pin 8 and Pin 11 is shown
in Figure 1B. Refer to Application Note AN5766 for other options.
2. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications TA = 25oC
PARAMETER
Collector-to-Emitter Breakdown
Voltage, Q6 and Q7 at 10mA
Collector-to-Emitter Breakdown
Voltage, Q1 at 0.1mA
Idle Currents, Q6 and Q7
Peak Output Currents, Q6 and Q7
Cutoff Currents, Q6 and Q7
Differential Amplifier Current Drain
Total Current Drain
Differential Amplifier Input
Terminal Voltages
Regulator Terminal Voltage
Q1 Cutoff (Leakage) Currents:
Collector-to-Emitter
Emitter-to-Base
Collector-to-Base
Forward Current Transfer Ratio,
Q1 at 3mA
Bandwidth at -3dB Point
Maximum Power Output for
RCC = 130Ω
Maximum Power Output for
RCC = 200Ω
Sensitivity for POUT = 400mW,
RCC = 130Ω
Sensitivity for POUT = 800mW,
RCC = 200Ω
Input Resistance -
Terminal 3 to Ground
SYMBOL
V(BR)CER
V(BR)CEO
I4 IDLE
I7 IDLE
I4PK
I7PK
I4 CUTOFF
I7 CUTOFF
ICC1
ICC1 +
ICC2
V2
V3
V11
ICEO
IEBO
ICBO
hFE1
BW
PO(MAX)
eIN
eIN
RIN3
TEST CONDITIONS
CIRCUIT AND DC SUPPLY
PROCEDURE VOLTAGE
FIGURE
1A
VCC1 VCC2
--
- --
7 9.0 2.0
7 9.0 2.0
7 9.0 2.0
7 9.0 9.0
7 9.0 9.0
7 9.0 2.0
7 9.0 2.0
10.0 -
- 3.0 -
3.0 -
- 6.0 -
8 6.0 6.0
9 6.0 6.0
9 9.0 9.0
9 9.0 12.0
9 9.0 9.0
9 9.0 12.0
10 6.0 6.0
CA3020
MIN TYP MAX
18 -
-
10 -
-
- 5.5 -
140 -
-
- - 1.0
6.3 9.4 12.5
8.0 21.5 35.0
- 1.11 -
- 2.35 -
- - 100
- - 0.1
- - 0.1
30 75
-
-8
200 300
400 550
--
-
-
-
-
- 35 55
---
- 1000 -
CA3020A
MIN TYP MAX
25 -
-
10 -
-
- 5.5 -
180 -
-
- - 1.0
6.3 9.4 12.5
14.0 21.5 30.0
- 1.11 -
- 2.35 -
- - 100
- - 0.1
- - 0.1
30 75
-
-8
200 300
400 550
800 1000
-
-
-
-
---
- 50 100
- 1000 -
UNITS
V
V
mA
mA
mA
mA
mA
V
V
µA
µA
µA
MHz
mW
mW
mW
mV
mV
Ω
2
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CA3020, CA3020A
Typical Performance Data (Note 3) A heat sink is recommended for high ambient temperature operation.
PARAMETER
SYMBOL
Power Supply Voltage
Zero Signal Current
Maximum Signal Current
Maximum Power Output at THD = 10%
Differential Amplifier
Output Amplifier
Differential Amplifier
Output Amplifier
VCC1
VCC2
ICC1
ICC2
ICC1
ICC2
PO
Sensitivity
Power Gain
Input Resistance
Efficiency
eIN
GP
RIN
η
Signal-to-Noise Ratio
S/N
THD at 150mW Level
Test Signal Frequency from 600Ω Generator
Equivalent Collector-to-Collector Load Resistance
RCC
NOTE:
3. Refer to Figures 7 through 11 for measurement and symbol information.
CA3020
9.0
9.0
15
24
16
125
550
35
75
55
45
70
3.1
1000
130
CA3020A
9.0
12.0
15
24
16.6
140
1000
45
75
55
55
66
3.3
1000
200
UNITS
V
V
mA
mA
mA
mA
mW
mV
dB
kΩ
%
dB
%
Hz
Ω
Test Circuits and Waveforms
VCC
10mA
10mA
8
9 11
4
10 7
CA3020
VBR(CER)
CA3020A
Q7
1
12
6
VBR(CER)
Q6
25
3
FIGURE 1A. COLLECTOR-TO-EMITTER BREAKDOWN
VOLTAGE (Q6 AND Q7) CIRCUIT
VCC1
1K VCC2
510K
8
3K - +
~eIN
5µF
10
9 11
4
CA3020
7
6V CA3020A
1 12
6
5µF 2 5
+ 3V- 3
5.1K
0.01
+
µF -
5µF
3V
FIGURE 1B. TYPICAL AUDIO AMPLIFIER CIRCUIT UTILIZING
THE CA3020 OR CA3020A AS AN AUDIO
PREAMPLIFIER AND CLASS B POWER AMPLIFIER
FIGURE 1.
3
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