Low-Sensitivity Active-RC Filters Using Impedance Tapering of Symmetrical Bridged-T and Twin-T Networks

Jurisic, Drazen; Mijat, Neven; Moschytz, G.S.

doi:10.1109/iscas.2005.1464711

Cited by 5 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that in adjoint networks, the passive RC networks remain the same as those in the original network. Therefore, the circuits in [1][13] [14], are good candidates for conversion to the current domain, owing to their low sensitivities to component tolerances. The new design procedure of current-mode filters using impedance tapering adds nothing to the cost of the derived circuits, only the component values must be judiciously chosen.…”

Section: Discussionmentioning

confidence: 99%

“…sensitivity to the component tolerances [1]. The strategy of desensitization to component tolerances using impedance tapering for all allpole filters (for HP and BP according to the results in [13]), and for biquads with finite zeros using potential-symmetry of a Twin-T (according to [14]) is provided in the second column of Table 1. The sensitivity of those filters realized in the current domain has also been investigated using MC runs.…”

Section: Low-sensitivity Current-mode Filtersmentioning

confidence: 99%

See 1 more Smart Citation

Low-Sensitivity Current-Mode Active-RC Filters Using Impedance Tapering

Jurisic

Mijat

Moschytz

2005 IEEE International Symposium on Circuits and Systems

Self Cite

View full text Add to dashboard Cite

This paper is concerned with a new design method of low-sensitivity current-mode filters, which results from lowsensitivity voltage-mode filter design using impedance tapering. The current-mode filters are obtained by application of a network transposition to their voltage-mode counterparts, in which the passive-RC network remains the same, and both filters are expected to have identical sensitivity properties. However, current-mode filters may be easier to realize in IC form and are expected to have higher bandwidths, greater linearity and wider dynamic range than the voltage-mode filters. In this paper, the 2nd-order class-4 current-mode filters (with positive feedback) will be considered. Design procedures will be given for the design of low-sensitivity lowpass (LP), high-pass (HP), band-pass (BP) and band-rejection (BR) filters, which are all realizable in class-4. A sensitivity analysis is examined using PSpice Monte Carlo runs.

show abstract

Section: Discussionmentioning

confidence: 99%