A Monostable Physically Unclonable Function Based on Improved RCCMs with 0–1.56% Native Bit Instability at 0.6–1.2 V and 0–75 °C

In this work, a Physically Unclonable Function (PUF) based on an improved regulated cascode current mirror (IRCCM) is presented. The proposed IRCCM improves the loop-gain of gain-boosting branch over conventional RCCM PUF, thereby increasing output resistance and amplifying mismatches due to random variations. introduction explicit reference in biasing results lower native unstable bits, good robustness against environmental variations very stable power consumption. PUF has been validated through measurement test-chip implemented 130 nm CMOS process. performance was measured for supply voltages between 0.6 1.2V, temperatures ranging from 0 °C 75 °C. A comparison similar designs literature shown that exhibits state art with reliability under voltage