APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

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TYPICAL APPLICATION

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.

EXTERNAL CONNECTIONS

* .01F or greater ceramic power supply bypassing required.

CC = 10pF minimum, 1kV NPO (COG).

PHASE COMPENSATION

GAIN

CC

≥10

10pF

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 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.

EQUIVALENT SCHEMATIC

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PATENTED

7-PIN SIP

PACKAGE STYLE DR