An ultra-low power common-source-amplifier-based physical unclonable function

In this paper, a common-source-amplifier-based physical unclonable function (PUF) is presented with ultra-low power consumption, which is verified with 0.18μm standard complementary-metal-oxide-semiconductor (CMOS) technology. Compared with the previous implementations, the proposed PUF circuitry features an averaged reliability as high as 98.83% with the operating temperature ranging from -20°C to 150°C. In addition, an average power consumption as low as 2.72μW is achieved with a supply voltage of 1.8V. Moreover, the reported superior uniqueness of 0.4999 and standard deviation of uniqueness of 0.0172 further validate the excellent security of the proposed circuitry.