Title :
A low voltage operational amplifier cell with extended input common mode range for high voltage current sensing applications
Author :
Puscasu, Razvan ; Brinzoi, Pavel ; Creosteanu, Laurentiu ; Brezeanu, Gheorghe
Author_Institution :
Electronics, Telecommunications and Information Technology, University Politehnica of Bucharest, Bucharest, Romania
fDate :
June 29 2015-July 2 2015
Abstract :
A new operational amplifier cell for high voltage current sensing applications is presented in this paper. The proposed structure employs a fully low voltage input stage capable of tracking input common modes (CMs) ranging from GND rail to above the supply rail. Furthermore, a solution for ensuring the linearity of the amplifier over the entire operating voltages is discussed. The proposed circuit was implemented in a typical 0.25μm CMOS BCD technology and its performances were confirmed by simulations and silicon measurements.
Keywords :
Computer architecture; Current measurement; Low voltage; MOS devices; Microprocessors; Transistors; extended common mode range; precision current sensing;
Conference_Titel :
Ph.D. Research in Microelectronics and Electronics (PRIME), 2015 11th Conference on
Conference_Location :
Glasgow, United Kingdom
DOI :
10.1109/PRIME.2015.7251080
