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Physics  2012 

A Transimpedance Amplifier for Remotely Located Quartz Tuning Forks

DOI: 10.1063/1.4769271

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Abstract:

The cable capacitance in cryogenic and high vacuum applications of quartz tuning forks imposes severe constraints on the bandwidth and noise performance of the measurement. We present a single stage low noise transimpedance amplifier with a bandwidth exceeding 1 MHz and provide an in-depth analysis of the dependence of the amplifier parameters on the cable capacitance.

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