TITLE:
CM-Biquad Filter Using Single DO-VDBA
AUTHORS:
Chandra Ketu Yadav, Dinesh Prasad, Zainab Haseeb, Laxya , Mayank Kumar
KEYWORDS:
Current Mode, Biquad Filter, Dual Output-Voltage Differencing Buffered Amplifier
JOURNAL NAME:
Circuits and Systems,
Vol.9 No.9,
September
17,
2018
ABSTRACT: In this manuscript we present a current mode biquad using one dual output-voltage differencing buffered amplifier (DO-VDBA) and four passive components (2 grounded capacitors and 2 resistors). The proposed circuit offers very low active and passive sensitivity. The filter presented here is electronically tunable, frequency of oscillation (FO) can be tuned by controlling transconductance (gm) by varying the bias current (IB) of the circuit. The workability of proposed circuit is tested using PSPICE with 180 nm TSMC CMOS process parameters.