Title :
A very-linear CMOS transconductance stage for OTA-C filters
Author :
Van Peteghem, P.M. ; Haby, Brad J. ; Fossati, Humberto M. ; Rice, Glenn L.
Abstract :
A novel CMOS differential input stage for transconductance amplifiers is presented. It combines a low noise excess factor and low input capacitance with very good linearity. Measured distortion is only 0.2% for a 2-V RMS input signal, and only 1% for a 2-V RMS input signal, on a test circuit implemented in a standard 3 μm CMOS process, using ±5-V supplies. This results in over 85 dB of dynamic range
Keywords :
CMOS integrated circuits; active filters; differential amplifiers; linear integrated circuits; operational amplifiers; 3 micron; CMOS transconductance stage; OTA-C filters; active filters; differential input stage; linear IC; linearity; low input capacitance; low noise excess factor; op amps; transconductance amplifiers;
Conference_Titel :
Custom Integrated Circuits Conference, 1989., Proceedings of the IEEE 1989
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/CICC.1989.56830
