CA3020A

* High Power Output Class B Amplifier
- CA3020 . . . . . . . . . . . . . . . . . . . . 0.5W (Typ) at V = 9V CC
- CA3020A . . . . . . . . . . . . . . . . . . 1.0W (Typ) at V = 12V CC
* 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 -55 C to 125 C Temperature Range

The CA3020A is integrated-circuit, multistage multipurpose, wide-band power amplifiers on a single monolithic silicon chip.

Features of the CA3020A are:(1)high power output class B amplifier is 1.0W (Typ) at VCC = 12V;(2)wide frequency range is up to 8MHz with resistive loads;(3)high power gain is 75dB (Typ);(4)single power supply for class B operation with transformer is 3V to 12V;(5)built-in temperature-tracking voltage regulator provides stable operation over -55 to 125 temperature range.Applications of the CA3020A are:(1)AF power amplifiers for portable and fixed sound and communications systems;(2)servo-control amplifiers;(3)wide-band linear mixers;(4)video power amplifiers;(5)transmission-line driver amplifiers (balanced and unbalanced);(6)fan-in and fan-out amplifiers for computer logic circuits;(7)lamp-control amplifiers;(8)motor-control amplifiers;(9)power multivibrators;(10)power switches.

The absolute maximum ratings of the CA3020A can be summarized as:(1):the maximum pin 9 supply voltage, VCC1 is 12V;(2):the maximum pin 9 supply current, ICC1 is 20mA;(3):the maximum pin 11 sink current, I11 is 20mA;(4):the output voltage, V4 and V7 is 18V; (5):the output current, IO is 300mA;(6):the input voltage range, V2, V3 is -2V to 2V;(7):the maximum input voltage, V10 (Ref to pin 1) is -3V;(8):the maximum source current, V1 is 1mA.