fF

Direct mismatch characterization of femtofarad capacitors

1 min read · Tue, Apr 26 2016

fF poly-insulator-poly PIP Circuits

Hesham Omran, et al., "Direct mismatch characterization of femtofarad capacitors" IEEE Transactions on Circuits and Systems II: Express Briefs 63 (2), 2016, 151. Abstract: Reducing the capacitance of programmable capacitor arrays (PCAs), commonly used in analog integrated circuits, is necessary for low-energy applications. However, limited mismatch data are available for small capacitors. We report mismatch measurement for a 2-fF poly-insulator-poly (PIP) capacitor, which is the smallest reported PIP capacitor to the best of the authors' knowledge. Instead of using complicated custom on-chip