Embodying Current division transconductance reduction in M-CDTA and its application as low frequency filter

Abstract

This research paper brings forward an enhancement to existing Modified-Current Differencing Trans-Conductance Amplifier (M-CDTA) which works on subthreshold region in order to provide low gm and make it more suitable to low frequency filter application. Here, current division gm reduction technique is embodied in M-CDTA to provide even lower gm. The proposed block is termed as New Modified-Current Differencing Trans-Conductance Amplifier (NM-CDTA) in context of this paper. The functional verification of the proposed block is done using Net-listing in ORCAD PSpice A/D simulation tool. A multiple input single output filter is also included in paper as an application of NM-CDTA and its operation is verified through simulations.