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DESCRIPTION

The PA84 is a high voltage operational amplifier designed for output voltage swings up to ±145V with a dual supply or 290V with a single supply. Two versions are available. The new PA84S, fast settling amplifier can absorb differential input overvoltages up to ±50V while the established PA84 and PA84A can handle differential input overvoltages of up to ±300V. Both versions are protected against common mode transients and overvoltages up to 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 PA84 features an unprecedented supply range and excellent supply rejection.

FEATURES

? HIGH SLEW RATE — 200V/μs

? FAST SETTLING TIME — .1 in 1μs (PA84S)

? FULLY PROTECTED INPUT — Up to ±150v

? LOW BIAS CURRENT, LOW NOISE — FET Input

? WIDE SUPPLY RANGE — ±15V to ±150V

APPLICATIONS

? HIGH VOLTAGE INSTRUMENTATION

? ELECTROSTATIC TRANSDUCERS & DEFLECTION

? PROGRAMMABLE POWER SUPPLIES UP TO 290V

? ANALOG SIMULATORS