Title :
A novel all-MOS high-speed continuous-time filter
Author :
Dupuie, Scott T. ; Bibyk, Steven ; Ismail, Mohammed
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
A new continuous-time transistor-only bandpass/lowpass filter based on gm/C integrators that is capable of realizing critical frequencies in excess in 10 MHz is described. The center frequency, Q, and voltage gain are all voltage-tunable over a 10:1 range. The integrators use a novel, fully balanced, source-degenerated transconductor which maintains less than 1% nonlinearity for differential inputs up to 2 V. A second-order state variable filter with a nominal f0=3.2 MHz and Q =5 consumes only 20 mW from a single-ended 5-V supply
Keywords :
MOS integrated circuits; active filters; band-pass filters; integrating circuits; linear integrated circuits; low-pass filters; radiofrequency filters; tuning; 10 MHz; 20 mW; 3.2 MHz; 5 V; MOS IC: transistor only configuration; bandpass filter; center frequency; continuous-time filter; fully balanced transconductor; high-speed; integrators; lowpass filter; second-order state variable filter; single-ended 5-V supply; source-degenerated transconductor; tunable Q-factor; voltage gain; voltage-tunable; Band pass filters; CMOS technology; Feedback; Frequency; Linearity; MOSFET circuits; Microelectronics; Solid state circuits; Very large scale integration; Voltage;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100441
