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

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FEATURES

• HIGH VOLTAGE - 300 VOLTS

• HIGH OUTPUT CURRENT – 1.5 AMPS

• 70 WATT DISSIPATION CAPABILITY

• 175 MHz GAIN BANDWIDTH

• 250 V/µ-SECOND SLEW RATE

APPLICATIONS

• PZT DRIVE

• MAGNETIC DEFLECTION

• PROGRAMMABLE POWER SUPPLIES

• 70V LINE AUDIO to 70W

DESCRIPTION

The PA96 is a state of the art high voltage, high current

operational amplifier designed to drive resistive, capacitive

and inductive loads. For optimum linearity, the output stage

is biased for class A/B operation. External compensation

provides user flexibility in maximizing bandwidth at any gain

setting. The safe operating area (SOA) can be observed for

all operating conditions by selection of user programmable

current limit. For continuous operation under load, a heatsink

of proper rating is required.

The hybrid integrated circuit utilizes thick film (cermet)

resistors, ceramic capacitors and semiconductor chips to

maximize reliability, minimize size and give top performance.

Ultrasonically bonded aluminum wires provide reliable inter-

connections at all operating temperatures. The 8-pin TO-3

package is hermetically sealed and electrically isolated. The

use of compressible isolation washers voids the warranty.

EQUIVALENT CIRCUIT DIAGRAM

TYPICAL APPLICATION

PZT POSITION CONTROL

The MOSFET output stage of the PA96 provides superior

SOA performance compared to bipolar output stages where

secondary breakdown is a concern. The extended SOA is

ideal in applications where the load is highly reactive and

may impose simultaneously both high voltage and high cur-

rent across the output stage transistors. In the figure above

a piezo-electric transducer is driven to high currents and high

voltages by the PA96.

EXTERNAL CONNECTIONS

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8-PIN TO-3

PACKAGE STYLE CE