Update: 30 September, 2023
The PA85 is a high voltage, high power bandwidth MOS-FET operational amplifier designed for output currents up to 200mA. Output voltages can swing up to ±215V with a dual supply and up to +440 volts with a single 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 PA85 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 thick film (cermet) resistors, ceramic capacitors and silicon semiconductor chips to maximize reli- ability, minimize size and give top performance. Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is hermeti- cally sealed and electrically isolated.
File format: PDF
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MD5 Checksum: BA42FE7C08A3937CEF470BB5DED938D0
Publication date: 04 May, 2012
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PDF Link: CIRRUS LOGIC PA85 PA85A PDF