Title :
A MOSFET-only continuous-time 560 kHz tunable bandpass filter
Author_Institution :
Integrated Syst. Lab., Swiss Federal Inst. of Technol., Zurich, Switzerland
Abstract :
A MOSFET-only filter is described which employs an amplifier-regulated cascode structure to realize both conductance and transconductance, while the required capacitors are realized by MOSFET gate capacitance. The filter configuration is such that both MOSFET capacitors and MOSFET resistors are always biased in the triode region, so that the only remaining nonlinearity is that caused by mobility degradation due to the normal field, which can be reduced by differential structures.
Keywords :
MOS analogue integrated circuits; band-pass filters; continuous time filters; 560 kHz; MOSFET capacitors; MOSFET resistors; MOSFET-only filter; amplifier-regulated cascode structure; conductance; continuous-time tunable bandpass filter; differential structure; mobility; nonlinearity; transconductance; triode; Band pass filters; Capacitors; Joining processes; MOSFET circuits; Nonlinear filters; Operational amplifiers; Resistors; Transconductance; Transconductors; Voltage;
Conference_Titel :
VLSI Circuits, 1995. Digest of Technical Papers., 1995 Symposium on
Conference_Location :
Kyoto, Japan
Print_ISBN :
0-7800-2599-0
DOI :
10.1109/VLSIC.1995.520701
