Excelera of Barcelona is a start-up aiming to bring new capabilities to sensor systems Excelera has a chip it calls a Universal Frequency-to-Digital Converter-1 (UFDC-1) – a fully digital CMOS IC, capable of measuring frequency, period, ratio, duty-cycle, and phase shift in 16 different modes, with a relative error ranging from 0.001 to 1%. “We …