A new two-stage transimpedance preamplifier in feedback picoammeter setup for use in scanning tunneling microscopy is represented. The first stage consisting of a wide band field effect transistor input operational amplifier with resistive feedback has a transimpedance of 20 kΩ and a 3 dB bandwidth of 35 MHz. This setup is built to investigate sub μs fluctuations in the tunneling current.
No takes yet. Share an insight, caveat, or question.
Demming et al. (1998) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: