Near counting electrons thanks to femto-ampere input bias amplifier

A team of researchers have created a new Atomic Force Microscope with the help of Analog Devices electronics. In particular, they measure the tiny currents produced by the piezoelectric effect with a transimpedance amplifier, which consists into a current-to-voltage converter. The work entitles “Piezo-generated charge mapping revealed through direct piezoelectric force microscopy” published in the(…)