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DESCRIPTION

The PA83 is a high voltage operational amplifier designed for output voltage swings up to ±145V with a dual (±) supply or 290V with a single supply. Its input stage is protected against transient and steady state overvoltages up to and including the supply rails. High accuracy is achieved with a cascode input circuit configuration. All internal biasing is referenced to a zener diode fed by a FET constant current source. As a result, the PA83 features an unprecedented supply range and excellent supply rejection. The output stage is biased in the class A/B mode for linear operation.

FEATURES

? LOW BIAS CURRENT, LOW NOISE — FET Input

? FULLY PROTECTED INPUT — Up to ±150V

? WIDE SUPPLY RANGE — ±15V to ±150V

APPLICATIONS

? HIGH VOLTAGE INSTRUMENTATION

? ELECTROSTATIC TRANSDUCERS & DEFLECTION

? PROGRAMMABLE POWER SUPPLIES UP TO 290V

? ANALOG SIMULATORS