Title :
Design of a TID-tolerant low-level offset operational amplifier
Author :
Piccini, Y. ; Lapuyade, Herve ; Deval, Yann ; Morche, Colette ; Seyler, Jean-Yves ; Goutti, Frederic ; Taris, T.
Author_Institution :
CNES, Toulouse, France
Abstract :
An auto-zero operational amplifier dedicated to space applications is proposed. Its operation principle is based on a continuous-time auto-zeroed amplifier topology to provide a low-level offset. The circuit was implemented in a standard 130 nm CMOS technology. Simulations show that the residual offset is reduced to a few microvolts. The gain bandwidth product is estimated at 10 MHz, and the slew-rate at 7 V/μs for a load capacitor of 10 pF. The current supply is about 300 μA.
Keywords :
CMOS integrated circuits; network topology; operational amplifiers; CMOS technology; TID-tolerant low-level offset operational amplifier; auto-zero operational amplifier; continuous-time auto-zeroed amplifier topology; CMOS integrated circuits; Capacitors; Cutoff frequency; Frequency modulation; Gain; Operational amplifiers; Transfer functions;
Conference_Titel :
New Circuits and Systems Conference (NEWCAS), 2013 IEEE 11th International
Conference_Location :
Paris
Print_ISBN :
978-1-4799-0618-5
DOI :
10.1109/NEWCAS.2013.6573640
