Research Article

VM and CM Universal Filters Based on Single DVCCTA

Table 3

Comparative study of the available similar type of single active element-based VM filters.

ReferenceActive element used and number of passive componentsAvailability of universal filter responses (i.e., low-pass, band-pass, high-pass, notch, and all pass)No inversion of input voltageNo requirement of gain of input signal such as 2 𝑉 i n and 3 𝑉 i n TunabilitySimple/no matching condition

[11]CCCCTA, 2YesNoNoYesYes
[15]DVCCCTA, 2NoYesYesYesYes
[18]DBTA, 5NoYesYesYesYes
ProposedDVCCTA, 3*YesYesYesYesYes

*Passive components may be reduced to 2 by replacing DVCCTA with DVCCCTA.