kujes

Kastamonu University Journal of Engineering and Sciences

2667-8209

Kastamonu University

10.55385/kastamonujes.1395608

Microtechnologies

Mikroteknolojiler

A Low-Power 30MHz,6th Order Bandpass Differential Gm-C Filter on Chip Utilizing Floating Current Source

https://orcid.org/0000-0003-2983-1425

Demirel

Huseyin

ANKARA YILDIRIM BEYAZIT ÜNİVERSİTESİ

https://orcid.org/0000-0003-2239-9940

Ahmed

Arsen

Kirkuk University

12 26 2023

9 2 96 103 11 24 2023 12 17 2023

2015

Kastamonu University Journal of Engineering and Sciences

This work employs a leap-frog Gm-C structure to design a sixth-order Butterworth and elliptic bandpass filter that the cutoff frequency (Fo = 30MHz). A continuous-time differential Gm-C biquad and its corresponding voltage-mode version are elucidated, utilizing F.C.S (Floating Current Source) circuits as fundamental components. The enhanced current source architecture exhibits a streamlined configuration. It incorporates a reduced number of transistors, which facilitates optimal utilization of the chip's area and introduces a streamlined approach to circuit design. The suggested filter topology lacks a crucial resistor component, vital in achieving integration functionality. The suggested filter incorporates a grounding configuration for all capacitors, thereby mitigating the detrimental impact of parasitic effects. The filter design has been effectively realized utilizing TSMC's 0.18μm CMOS process. The findings from simulations have been provided to validate the theoretical analysis.

Continuous-Time Gm-C Bandpass Filter Floating Current Source (F.C.S) TSMC

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