Tutorial: Analog Techniques for Nano-Power Circuits

This tutorial presents the design methodology and examples of analog circuits having nanoampere consumption with application in systems with short activity periods followed long standby. They are essential for the area of energy harvesting where the amount of available energy can unpredictably change by orders of magnitude. Low load efficiency of power management becomes a very important parameter in a wide breadth of applications. Circuit examples include biasing, precision voltage references, oscillators, charge pumps, adaptive speed amplifiers and comparators, LDOs, DCDC converters.