EN
Noise Analysis For Active Element Based Capacitor Multipliers
Abstract
In this study, comprehensive noise analyses and optimization of two different capacitance multiplier structures have been presented. Capacitor multipliers, essential in low frequency applications due to capacitors’ significant chip area requirement, play a significant role in high precision analog circuits. Noise impacts such filters by reducing the signal to noise ratio (SNR), increasing phase noise, and potentially causing distortion, which is critical in applications requiring high accuracy and stability, such as biomedical instrumentation, communication systems, and precision measurement devices. Therefore, thorough analysis and optimization of filter noise characteristics are essential for reliable operation in sensitive applications. Two capacitor multiplier structures are analyzed: the Multiple Output Voltage Differencing Transconductance Amplifier (MO-VDTA) based and the Multiple Output Current Differencing Transconductance Amplifier (MO-CDTA) based structures. The multiplication factor of the capacitor multiplier in basis of MO-VDTA varies between 120 and 750, depending on the IB value.
This variation allows the cutoff frequency of the applied fi lter to change between 2 kH z and 12.4 kHz. The MO-CDTA based structure’s multiplication factor varies between 400 and 1250 by changing the VGS voltage of the external PMOS. This structure has been used in a 2nd order low pass filter, with the cutoff frequency varying between 23.6 kHz and 91 kHz in conjunction with multiplication factor changing. In this respect, comprehensive noise analyses of the filter applications of these two structures have been examined to ensure reliable and efficient operation in sensitive applications.
Keywords
References
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Details
Primary Language
English
Subjects
Electrical Circuits and Systems, Electrical Engineering (Other)
Journal Section
Research Article
Publication Date
December 31, 2024
Submission Date
August 17, 2024
Acceptance Date
October 4, 2024
Published in Issue
Year 2024 Volume: 11 Number: 4
APA
Sakaci, B., & Özenli, D. (2024). Noise Analysis For Active Element Based Capacitor Multipliers. Hittite Journal of Science and Engineering, 11(4), 157-167. https://doi.org/10.17350/HJSE19030000343
AMA
1.Sakaci B, Özenli D. Noise Analysis For Active Element Based Capacitor Multipliers. Hittite J Sci Eng. 2024;11(4):157-167. doi:10.17350/HJSE19030000343
Chicago
Sakaci, Burak, and Deniz Özenli. 2024. “Noise Analysis For Active Element Based Capacitor Multipliers”. Hittite Journal of Science and Engineering 11 (4): 157-67. https://doi.org/10.17350/HJSE19030000343.
EndNote
Sakaci B, Özenli D (December 1, 2024) Noise Analysis For Active Element Based Capacitor Multipliers. Hittite Journal of Science and Engineering 11 4 157–167.
IEEE
[1]B. Sakaci and D. Özenli, “Noise Analysis For Active Element Based Capacitor Multipliers”, Hittite J Sci Eng, vol. 11, no. 4, pp. 157–167, Dec. 2024, doi: 10.17350/HJSE19030000343.
ISNAD
Sakaci, Burak - Özenli, Deniz. “Noise Analysis For Active Element Based Capacitor Multipliers”. Hittite Journal of Science and Engineering 11/4 (December 1, 2024): 157-167. https://doi.org/10.17350/HJSE19030000343.
JAMA
1.Sakaci B, Özenli D. Noise Analysis For Active Element Based Capacitor Multipliers. Hittite J Sci Eng. 2024;11:157–167.
MLA
Sakaci, Burak, and Deniz Özenli. “Noise Analysis For Active Element Based Capacitor Multipliers”. Hittite Journal of Science and Engineering, vol. 11, no. 4, Dec. 2024, pp. 157-6, doi:10.17350/HJSE19030000343.
Vancouver
1.Burak Sakaci, Deniz Özenli. Noise Analysis For Active Element Based Capacitor Multipliers. Hittite J Sci Eng. 2024 Dec. 1;11(4):157-6. doi:10.17350/HJSE19030000343