Title :
Low noise, low distortion, high frequency, fully differential CMOS transconductor
Author :
Hill, C. ; Sun, Y. ; Szczepanski, S.
Author_Institution :
Fac. of Eng., Hertfordshire Univ., Hatfield, UK
Abstract :
This paper describes a CMOS transconductance element based upon two differential pairs whose outputs are summed to give a linear transfer characteristic. The circuit has been simulated using a 2 μm process from MOSIS, and results show that with a single 5 V supply, bandwidth in excess of 300 MHz, THD below 0.7% for a 1 Vpk-pk differential input signal, and dynamic range in excess of 70 dB can be achieved
Keywords :
CMOS analogue integrated circuits; active networks; circuit feedback; circuit tuning; continuous time filters; frequency response; harmonic distortion; integrated circuit noise; linear network analysis; 1 V; 2 micron; 300 MHz; 5 V; CMOS transconductance element; HF fully differential transconductor; MOSIS process; common-mode feedback circuit; differential pairs; high frequency transconductor; linear transfer characteristic; low distortion transconductor; low noise CMOS transconductor; CMOS technology; Circuit noise; Circuit optimization; Circuit simulation; Equations; Frequency; Linearity; Threshold voltage; Transconductance; Transconductors;
Conference_Titel :
Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on
Conference_Location :
Tianjin
Print_ISBN :
0-7803-6253-5
DOI :
10.1109/APCCAS.2000.913572
