Falco’s battery-powered high-voltage amplifiers target MEMS

January 22, 2007 — Falco Systems, manufacturer of measurement electronics for MEMS research, has announced its new WMA-01 and WMA-01LF high-voltage amplifiers. Designed for applications such as MEMS devices and PZT (piezo) positioning systems, they measure 100 x 50 x 26 mm each, and run from a low-voltage power supply to provide up to +125V and -125V output.

Both can be battery powered if required (e.g. for use in a Faraday cage). The internal high voltage generators are inductor-free so do not spread magnetic interference in sensitive experiment setups.

The output noise of the WMA-01 is just 0.8mVrms in the DC – 20kHz full power bandwidth. For even lower noise applications where bandwidth is not an issue, the WMA-01LF amplifier contains an output low pass filter capacitor. This reduces bandwidth to 50Hz, but makes the noise drop below 0.1mVrms.

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