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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
PATENTED
7-PIN SIP
PACKAGE STYLE DR
DESCRIPTION
The PA97 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.
TYPICAL APPLICATION
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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 PA97 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.
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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
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
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APEX [ CIRRUS LOGIC ]
