Ultra Low-Energy Relaxation Oscillator With 230 FJ/cycle Efficiency

Nadeau, P. M., A. Paidimarri, A. P. Chandrakasan, "Ultra Low-Energy Relaxation Oscillator With 230 fJ/cycle Efficiency," IEEE Journal of Solid-State Circuits, vol. 51, no. 4, pp.789-799, April 2016.