High-speed, high-voltage power op-amps

19 October 2005 Analogue, Mixed Signal, LSI

Apex Microtechnology is answering the growing demand for power analog ICs that deliver on precision power and performance by breaking new ground in high speed, high voltage and low quiescent current silicon design. It has combined its own patented IC circuitry with evolving high voltage fab processes. The PA78, PA86 and PA69 are high speed, high voltage ICs targeted at the growing use of piezo electric devices in industrial and medical markets. Piezos are hailed for their ability to generate extremely fine movement in applications such as commercial inkjet printers, ultrasonic cleaners and surgical tools. Capable of achieving slew rates of up to 350 V/μs on supply voltages of 350 V, the PA78 series also delivers up to 150 mA of output current while generating very little standby current - less than 1 mA. This IC's design provides for extremely high slew rates in pulse applications while maintaining very low quiescent current. The slew rate performance is independent of supply current, while exhibiting a functional relationship to voltage amplitude.

www.apexmicrotech.com

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