Design Issues for UHF OTA-C Filter Realizations Conference Paper uri icon

abstract

  • 2001 IEEE. Design considerations for ultra-high frequency OTA-C filters are discussed. The effects of the OTA non-idealities on the precision of high-Q filters are accounted for. The parasitic capacitors produce center frequency deviations, and the finite OTA output resistance reduces the Q-factor while the parasitic poles introduce Q-enhancement. In this paper it is shown that the non-dominant pole effects are the most critical ones, hence the use of single-stage OTA's is a must. The effects of the parasitic capacitors on the filter's linearity are considered as well. Simulated results for a 2nd order 500 MHz high-Q bandpass filter using a 0.35 m technology are reported.

name of conference

  • 2001 Southwest Symposium on Mixed-Signal Design (Cat. No.01EX475)

published proceedings

  • 2001 Southwest Symposium on Mixed-Signal Design (Cat. No.01EX475)

author list (cited authors)

  • Silva-Martinez, J.

citation count

  • 3

complete list of authors

  • Silva-Martinez, Jose

publication date

  • January 2001