Title :
EMI susceptibility in bulk-driven Miller opamp
Author :
Sbaraini, S. ; Richelli, Anna ; Kovacs-Vajna, Zsolt Miklos
Author_Institution :
Dept. of Inf. Engeneering, Univ. of Brescia, Brescia, Italy
Abstract :
A simple bulk-driven Miller amplifier is proposed. Along with the main operational amplifier (opamp) characteristics, the EMI susceptibility has also been investigated. The common nonlinearity problem of bulk-driven opamp architectures has been investigated and solved. The solution reduces also the EMI susceptibility. The proposed opamp has been designed in a 0.35 μm standard CMOS process; it is supplied by 1 V, it exhibits a gain of 90 dB, a gain bandwidth product of 113 kHz, a power consumption of 8.4 μW and a high EMI robustness.
Keywords :
CMOS analogue integrated circuits; electromagnetic interference; operational amplifiers; CMOS process; EMI susceptibility; bulk-driven Miller amplifier; bulk-driven Miller opamp; gain 90 dB; gain bandwidth product; operational amplifier; power 8.4 muW; power consumption; size 0.35 nm; voltage 1 V;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.1029
