Title :
A low-voltage linear CMOS first-order two-pair for integrated CMWA filters
Author :
Thamviriyakul, C. ; Worapishet, A. ; Toumazou, C.
Author_Institution :
Dept. of Electr. Eng, Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
A linear CMOS first-order two-pair for the implementation of high-frequency filters based on the Current Mode Wave Active (CMWA) topology is presented. The circuit is compatible with a standard digital VLSI process and can operate at a low supply voltage of 3 V. A 10 MHz fifth-order Chebyshev filter using the two-pairs was designed and the simulation results show that the filter is highly linear where the THD is less than -40 dB for peak input bias currents upto 80% of the bias current. Also the filter cutoff frequency and quality factor can be easily tuned
Keywords :
CMOS analogue integrated circuits; Chebyshev filters; Q-factor; VLSI; active filters; circuit tuning; radiofrequency filters; 10 MHz; 3 V; current mode wave active topology; fifth-order Chebyshev filter; filter cutoff frequency tuning; first-order two-pair; high-frequency filters; integrated CMWA filters; low-voltage linear CMOS two-pair; quality factor tuning; CMOS technology; Circuit simulation; Circuit topology; Cutoff frequency; Educational institutions; Low voltage; Mirrors; Nonlinear filters; Q factor; Very large scale integration;
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.1997.608587
