Current constraints on System-on-chip (SoC) circuits push towards minimization of both area and power consumption. Typical SoC utilises bandgap voltage references to provide a reference voltage to the circuits in the SoC. However, the area and power consumed by the elements that compose a bandgap reference are not suitable for the requirements of nowadays circuits. In line with the common trend of implementing analog functions using circuits mainly composed of digital blocks, virtual voltage references emerge as the alternative to the usual analog voltage reference solution. Moreover, their implementation is still connected since the concept of virtual voltage reference originates from the generalization of the principles used in the design of bandgap voltage references.