An All-CMOS Supply, Temperature and Process Invariant Hybrid Current Reference For Power Efficient IoT Applications

We propose an all-CMOS, supply independent, second-order temperature compensated, process invariant, 10.09 μA current reference circuit working on a 1.8 V power supply. The current reference is built using an adaptive regulated cascode configuration integrated with a Widlar current source. It is implemented in 180 nm UMC MPW RF process and consumes an area of 0.014 mm2. It has a very lo...