•Ultra-low voltage sensor circuits powered byfree-space optics (Kleeburg, 2010)
•Integrated photovoltaics for optical
power, data, and clock delivery
•Subcutaneous medical implants
•Ultra-low duty cycle sensor (Ayazian, 2012)
•Integrated photovoltaics
(2.5 mm x 2.5 mm)
•Off-chip capacitive and resistive
transducers, and electrodes