A Transimpedance Amplifier for Remotely Located Quartz Tuning Forks
Ethan Kleinbaum, Gabor Csathy
TL;DR
This paper introduces a low noise transimpedance amplifier designed for cryogenic and high vacuum quartz tuning fork applications, achieving over 1 MHz bandwidth and analyzing cable capacitance effects.
Contribution
It presents a novel single-stage amplifier optimized for high impedance sensors with cable capacitance constraints, enhancing measurement bandwidth and noise performance.
Findings
Achieved over 1 MHz bandwidth in cryogenic conditions
Analyzed the impact of cable capacitance on amplifier parameters
Demonstrated low noise performance suitable for sensitive measurements
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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