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Hesham Omran's digitally controlled coarse-fine multi-slope CDC achieves 7.9 pJ/step

posted Jun 27, 2014, 11:41 PM by Khaled salama
An energy-efficient digitally controlled coarse-fine multi-slope capacitance-to-digital converter (CDC) was recently demonstrated by PhD student Hesham Omran. Both integration current and frequency are scaled which leads to significant improvement in the energy efficiency of both analog and digital circuitry.  A prototype fabricated in 0.35-m CMOS process occupies 0.09 mm2 and consumes a total of 153 A from 3.3 V supply while achieving 13-bit resolution and an excellent energy efficiency of 7.9 pJ/Step. This work was accepted for publications at IEEE transactions on circuits and systems II (TCASII) and titled  A 7.9 pJ/Step Energy-Efficient Multi-Slope 13-bit Capacitance-to-Digital Converter

Congratulations hesham