A low voltage low power voltage reference for biomedical and embedded applications is proposed. The reference voltage has been designed in a mixed-signal 0.13 μm CMOS process for source voltages as low as 0.5 V. The reference makes use of MOSFETs in the weak inversion region to consume nanowatts of power. Monte Carlo simulations show an average temperature coefficient of 2.2ppm/°C from -40°C to 100°C. The circuit layout occupies approximately 25μm × 10μm and draws 80 nA from a 500mV supply.

Additional Metadata
Conference ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
Citation
Miller, S. (Scott), & MacEachern, L. (2006). A nanowatt bandgap voltage reference for ultra-low power applications. Presented at the ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems.