Parasitic tolerant differential SC transconductance using unity gain buffers
- 17 Downloads
The unity gain buffer will be good to design high frequency SCF if its resistive effects can be eliminated, and therefore the whole parasitic sensitivities will greatly be reduced. On the basis of this concept, a novel parasitic tolerant SC DTE (differential transconductance element) is proposed. SC floating inductor and integrator fit for high frequency applications are formed by the DTE. The computer simulation and experiment on a third order elliptic LP filter verify its validity.
Key wordsUnity gain buffer Switched-capacitor filter Lowpass filter Differential transconductance element
Unable to display preview. Download preview PDF.
- K. Nagaraj, J. Vlach,IEEE Trans on CAS,CAS-35(1988)1, 35–42.Google Scholar
- A. De La Plaza,IEEE J. of SC,SC-21 (1986)6, 470–477.Google Scholar
- A. Fettweis,AEÜ,33(1979)1, 13–19.Google Scholar
- S. C. Fan, et al.,Switched-Capacitor Filters Using Unity Gain Buffers, Proc. ISCAS’80, Houston, (1980)4, pp.334–337.Google Scholar
- T. K. Wiswarathan, et al.,IEEE Trans on CAS,CAS-27(1980)6, 502–508.Google Scholar
- H. J. Orchard, G. C. Temes, Spectral Analysis of Switched-Capacitor Filters Designed by Using BilinearZ-Transform, Conf. Rec. of 21th Asilomar Conf. on circuits, Syst. & Computers (1987), pp.674–678.Google Scholar
- M. S. Lee, C. Chang,IEEE Trans on CAS,CAS-27 (1980)6, 475–480.Google Scholar