PA97DR Datasheet, PDF (1/4 Pages) Cirrus Logic – HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS

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FEATURES
• HIGH VOLTAGE — 900V (±450V)
• LOW QUIESCENT CURRENT — 600µA
• HIGH OUTPUT CURRENT — 10mA
APPLICATIONS
• MASS SPECTROMETERS
• SCANNING COILS
• HIGH VOLTAGE INSTRUMENTATION
• PROGRAMMABLE POWER SUPPLIES UP TO 880V
• SEMICONDUCTOR MEASUREMENT EQUIPMENT
DESCRIPTION
The PA97DR is a high voltage MOSFET operational amplifier
designed as a low cost solution for driving continuous output
currents up to 10mA and pulse currents to 15mA into capacitive
loads. The safe operating area (SOA) has no second break-
down limitations. The MOSFET output stage is biased class
C for low quiescent current operation. External compensation
provides flexibility in choosing bandwidth and slew rate for the
application. APEX’s SIP05 package uses a minimum of board
space allowing for high density circuit boards.
EQUIVALENT SCHEMATIC

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LOW POWER, PIEZOELECTRIC POSITIONING
Piezo positioning may be applied to the focusing of segment-
ed mirror systems. The composite mirror may be composed of
hundreds of elements, each requiring focusing under computer
control. In such complex systems the PA97DR reduces the
costs of power supplies and cooling with its advantages of low
cost and low quiescent power consumption while increasing
circuit density with the SIP package.
EXTERNAL CONNECTIONS
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* .01F or greater ceramic power supply bypassing required.
CC = 10pF minimum, 1kV NPO (COG).
PHASE COMPENSATION
GAIN
≥10
CC
10pF
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