A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters
This paper introduces an innovative low-voltage, low-power current differencing buffered amplifier (CDBA). The proposed CDBA utilizes a bulk-driven MOS transistor operating in the subthreshold region, allowing it to function effectively at low supply voltages while minimizing power consumption, maki...
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| Format: | Article |
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MDPI AG
2025-05-01
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| Online Access: | https://www.mdpi.com/2076-3417/15/10/5740 |
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| author | Fabian Khateb Montree Kumngern Tomasz Kulej |
| author_facet | Fabian Khateb Montree Kumngern Tomasz Kulej |
| author_sort | Fabian Khateb |
| collection | DOAJ |
| description | This paper introduces an innovative low-voltage, low-power current differencing buffered amplifier (CDBA). The proposed CDBA utilizes a bulk-driven MOS transistor operating in the subthreshold region, allowing it to function effectively at low supply voltages while minimizing power consumption, making it suitable for sensor and biomedical applications. To demonstrate the performance of the proposed CDBA, it is incorporated into the design of a current-mode, third-order low-pass filter that is specifically tailored for bio-sensing applications. Both the CDBA and the low-pass filter are designed and simulated in Cadence Virtuoso using the TSMC 0.18 µm CMOS process. The CDBA operates at a supply voltage of 0.3 V, consuming 170 nW of power, while the third-order low-pass filter achieves a dynamic range of 57.2 dB with a total harmonic distortion (THD) of 1%. |
| format | Article |
| id | doaj-art-d0b3a09b0d58478f9833e7fe89e199f6 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-d0b3a09b0d58478f9833e7fe89e199f62025-08-20T03:47:50ZengMDPI AGApplied Sciences2076-34172025-05-011510574010.3390/app15105740A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass FiltersFabian Khateb0Montree Kumngern1Tomasz Kulej2Department of Microelectronics, Brno University of Technology, Technická 10, 601 90 Brno, Czech RepublicDepartment of Telecommunications Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, ThailandDepartment of Electrical Engineering, Czestochowa University of Technology, 42-201 Czestochowa, PolandThis paper introduces an innovative low-voltage, low-power current differencing buffered amplifier (CDBA). The proposed CDBA utilizes a bulk-driven MOS transistor operating in the subthreshold region, allowing it to function effectively at low supply voltages while minimizing power consumption, making it suitable for sensor and biomedical applications. To demonstrate the performance of the proposed CDBA, it is incorporated into the design of a current-mode, third-order low-pass filter that is specifically tailored for bio-sensing applications. Both the CDBA and the low-pass filter are designed and simulated in Cadence Virtuoso using the TSMC 0.18 µm CMOS process. The CDBA operates at a supply voltage of 0.3 V, consuming 170 nW of power, while the third-order low-pass filter achieves a dynamic range of 57.2 dB with a total harmonic distortion (THD) of 1%.https://www.mdpi.com/2076-3417/15/10/5740current differencing buffered amplifierlow-pass filtercurrent-mode circuitlow-voltagelow-power |
| spellingShingle | Fabian Khateb Montree Kumngern Tomasz Kulej A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters Applied Sciences current differencing buffered amplifier low-pass filter current-mode circuit low-voltage low-power |
| title | A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters |
| title_full | A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters |
| title_fullStr | A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters |
| title_full_unstemmed | A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters |
| title_short | A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters |
| title_sort | 0 3 v current differencing buffered amplifier and its application in current mode third order low pass filters |
| topic | current differencing buffered amplifier low-pass filter current-mode circuit low-voltage low-power |
| url | https://www.mdpi.com/2076-3417/15/10/5740 |
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