DESCRIPTION

The PA61 and PA61A are high output current operational amplifers designed to drive resistive, inductive and capacitive loads. Their complementary emitter follower output stage is the simple class C type and optimized for low frequency applications where crossover distortion is not critical. These amplifers are not recommended for audio, transducer or de?ection coil drive circuits above 1kHz or when distortion is critical. The safe operating area (SOA) is fully specifed and can be observed for all operating conditions by selection of user programmable current limiting resistors. Both amplifers are internally compensated for all gain settings. For continuous operation under load, mounting on a heatsink of proper rating is recommended.

This hybrid circuit utilizes thick flm conductors, ceramic capacitors, and semiconductor chips to maximize reliability, minimize size, and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is electrically isolated and hermetically sealed. The use of compressible thermal washers and/or improper mounting torquevoids the product warranty. Please see “General Operating Considerations”.

FEATURES

? WIDE SUPPLY RANGE — ±10 to ±45V

? HIGH OUTPUT CURRENT — ±10A Peak

? LOW COST — Class “C” output stage

? LOW QUIESCENT CURRENT — 3mA

APPLICATIONS

? PROGRAMMABLE POWER SUPPLY

? MOTOR/SYNCRO DRIVER

? VALVE AND ACTUATOR CONTROL

? DC OR AC POWER REGULATOR

? FIXED FREQUENCY POWER OSCILLATOR