A low-voltage, high-performing CMOS transistor based on multiple- output operation transconductance amplifier for current mode KHN Universal filter applications

Authors : Huseyin Demirel

Pages : 235-239

Doi:10.19113/sdufenbed.1512118

View : 35 | Download : 10

Publication Date : 2024-08-23

Article Type : Research Paper

Abstract :This study proposes a current-mode KHN universal filter design that can perform three standard functions simultaneously: low-pass, high-pass, and band-pass. The circuit is built around a multiple-output operation transconductance amplifier (MO-OTA), which allows for electronically adjustable pole frequency and quality factor by modifying input bias currents (IB). The circuit layout is straightforward, with two MO-OTAs and two grounded capacitors, eliminating the need for external resistors and depending entirely on grounded components. Because of its simplicity, the circuit is suited for use in a tiny, efficient design. The proposed circuit\'s operation was validated using LT-Spice simulations, and the results were in line with theoretical expectations. The circuit used around 298μW of power at ±0.2V power supply voltages. These results demonstrate the circuit\'s potential for low-power applications, which are crucial in many modern electronic devices. The suggested current-mode KHN universal filter offers a viable option for combining various filter functions in a single circuit with customizable parameters. Its simplicity, efficiency, and performance qualities make it a feasible choice for incorporation into a variety of electronic systems, allowing for more filter design freedom.
Keywords : çoklu çıkışlı çalışma transiletkenlik amplifikatörü MO OTA, akım modu KHN üniversal filtre, LT Spice simülasyonları

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