Sra-Ium, Napat

Preferred name

Sra-Ium, Napat

Alternative Name

Sra-ium, Napat

Sra-ium, N.

Main Affiliation

School of Engineering

Email

napat.sr@kmitl.ac.th

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Minimal Realization Plus Current Output CC-based Biquad Circuit
(2024-06-01)
Wisetphanichkij, Sompong
;
Angkeaw, Krit
;
Sra-Ium, Napat
This paper presents a minimal design of a biquad circuit using only one plus current output type-II current conveyor (CCII), one differential voltage current conveyor (DVCC) and grounded passive components. The circuit enables the implementation of all 5 basic filter types: low-pass (LP), band-pass (BP), high-pass (HP), band-stop (BS) and all-pass (AP) by selecting and adding input and output currents with no component matching constraints. Moreover, the circuit parameters ω<inf>0</inf> and Q can be set simply by adjusting the circuit components. The proposed biquad circuit performance has very low sensitivity to circuit components due to its simple structure and a small number of devices (2 active and 4 grounded passive components). This allows the circuit to work at high frequencies. Non-ideal and parasitic effects are investigated and discussed. The performance of the proposed topology was evaluated through PSPICE simulator using the 0.18 μm CMOS technology from the Taiwan Semiconductor Manufacturing Company (TSMC).