Title :
Harmonic distortion in MOSFET-only filters based on the regulated cascode
Author_Institution :
Integrated Syst. Lab., Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
Channel mobility degradation due to normal field is the dominant source of nonlinearity that limits the achievable large signal performance in continuous-time filters using MOSFETs to emulate transconductors and resistors. In this paper the harmonic distortion due to mobility degradation is analyzed, as well as that due to MOSFET capacitor nonlinearity. The influence of finite amplifier bandwidth on linearity is also discussed. Results are compared to experiments
Keywords :
CMOS analogue integrated circuits; carrier mobility; continuous time filters; harmonic distortion; MOSFET capacitor nonlinearity; MOSFET-only filters; active filters; channel mobility degradation; continuous-time filters; finite amplifier bandwidth; harmonic distortion; large signal performance; linearity; nonlinearity; regulated cascode; Bandwidth; Capacitors; Degradation; Filters; Harmonic analysis; Harmonic distortion; Linearity; MOSFETs; Resistors; Transconductors;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.608730
