A 120 mV Supply, Triode-Regulated Femto-Watt CMOS Voltage Reference Design

Autor: Antonio Petraglia, Lucas Souza da Silva, Fabian Olivera
Rok vydání: 2021
Předmět:
Zdroj: IEEE Transactions on Circuits and Systems II: Express Briefs. 68:587-591
ISSN: 1558-3791
1549-7747
DOI: 10.1109/tcsii.2020.3046368
Popis: This brief presents the design and sizing of a femto-watt voltage reference based on the temperature compensation of N-type and P-type standard transistors. A short-channel dimension transistor working in triode region is added between the source and gate terminals of the traditional self-bias structure, which demonstrates efficient low-power and low-voltage operations. The circuit design was carried out in a 180 nm process. Post-layout simulation results verified the proper circuit operation and produced a reference voltage of 65.7 mV. With a minimum supply voltage of 120 mV, the circuit consumes 252 fW at room temperature, has mean and best temperature coefficients (TCs) of 89.81 ppm/°C and 10.61 ppm/°C, respectively, from −40 to 120°C, and presents a power supply rejection ratio (PSRR) of −61 dB.
Databáze: OpenAIRE