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APEX

PA88 Datasheet Preview

PA88 Datasheet

High Voltage Power Operational Amplifiers

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PA88 • PA88A
High Voltage Power Operational Amplifiers
RoHS
COMPLIANT
FEATURES
• High Voltage— 450V (±225V)
• Low Quiescent Current — 2mA
• Output Current— 100mA
• Programmable Current Limit
• Low Bias Current — FET Input
APPLICATIONS
• Piezoelectric Positioning
• High Voltage Instrumentation
• Electrostatic Transducers
• Programmable Power Supplies up to 440V
DESCRIPTION
The PA88 is a high voltage, low quiescent current MOSFET operational amplifier designed for output cur‐
rents up to 100mA. Output voltages can swing up to ±215V with a dual supply and up to +440 volts with a sin‐
gle supply. The safe operating area (SOA) has no second breakdown limitations and can be observed with all
types of loads by choosing an appropriate current limiting resistor. High accuracy is achieved with a cascode
input circuit configuration. All internal biasing is referenced to a bootstrapped zener‐MOSFET current source.
As a result, the PA88 features an unprecedented supply range and excellent supply rejection. The MOSFET
output stage is biased on for linear operation. External compensation provides user flexibility.
This hybrid circuit utilizes beryllia (BeO) substrates, thick film resistors, ceramic capacitors and semicon‐
ductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded alumi‐
num wires provide reliable interconnections at all operating temperatures. The 8‐pin TO‐3 package is
hermetically sealed and electrically isolated. The use of compressible thermal isolation washers and/or
improper mounting torque will void the product warranty. Please see Application Note 1, “General Operating
Considerations.”
www.apexanalog.com
© Apex Microtechnology Inc.
All rights reserved
Aug 2017
PA88U Rev S




APEX

PA88 Datasheet Preview

PA88 Datasheet

High Voltage Power Operational Amplifiers

No Preview Available !

PA88 • PA88A
TYPICAL CONNECTION
Figure 1: Typical Connection
2 PA88U Rev S


Part Number PA88
Description High Voltage Power Operational Amplifiers
Maker APEX
Total Page 14 Pages
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