Electronically Tunable Universal Filter and Quadrature Oscillator Using Low-Voltage Differential Difference Transconductance Amplifiers
This paper presents a new electronically tunable universal filter and quadrature oscillator for low frequency biomedical and biosensor applications employing low-voltage differential difference transconductance amplifier (DDTA). The DDTA CMOS structure uses 0.5 V of supply voltage and consumes 277 n...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9807276/ |
| _version_ | 1818521953254768640 |
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| author | Montree Kumngern Pichai Suksaibul Fabian Khateb Tomasz Kulej |
| author_facet | Montree Kumngern Pichai Suksaibul Fabian Khateb Tomasz Kulej |
| author_sort | Montree Kumngern |
| collection | DOAJ |
| description | This paper presents a new electronically tunable universal filter and quadrature oscillator for low frequency biomedical and biosensor applications employing low-voltage differential difference transconductance amplifier (DDTA). The DDTA CMOS structure uses 0.5 V of supply voltage and consumes 277 nW of power. Unlike the previous universal filters, the proposed filter provides many transfer functions of the standard five transfer functions such as low-pass, high-pass, band-pass, band-stop and all-pass with both unity and controlled voltage gains as well as both inverting and non-inverting transfer functions. The natural frequency and the voltage gain of the five standard transfer functions can be controlled electronically. For the band-pass filter, the third intermodulation distortion (IMD<sub>3</sub>) was 0.37% for 20 mV<sub>pp</sub> input signal while the output integrated noise was 61.37 <inline-formula> <tex-math notation="LaTeX">$\mu \text{V}$ </tex-math></inline-formula>. The dynamic range (DR) was 53.27 dB for 1% IMD<sub>3</sub>. The quadrature oscillator has electronically and orthogonal control of the condition and frequency of oscillation. The proposed circuit and its applications were designed and verified via Cadence simulator tool using 0.13 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> UMC CMOS technology. Further, the circuit was evaluated by PSPICE simulation and experiment test using commercial OTA LM13700. |
| first_indexed | 2024-12-11T01:58:17Z |
| format | Article |
| id | doaj.art-5524cb2174ce45298fe9b51226ecb2d8 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-11T01:58:17Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-5524cb2174ce45298fe9b51226ecb2d82022-12-22T01:24:33ZengIEEEIEEE Access2169-35362022-01-0110689656898010.1109/ACCESS.2022.31864359807276Electronically Tunable Universal Filter and Quadrature Oscillator Using Low-Voltage Differential Difference Transconductance AmplifiersMontree Kumngern0https://orcid.org/0000-0002-1960-9081Pichai Suksaibul1Fabian Khateb2https://orcid.org/0000-0002-9864-9830Tomasz Kulej3https://orcid.org/0000-0002-6315-9292Department of Telecommunications Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, ThailandDepartment of Telecommunications Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, ThailandDepartment of Microelectronics, Brno University of Technology, Brno, Czech RepublicDepartment of Electrical Engineering, Czestochowa University of Technology, Czestochowa, PolandThis paper presents a new electronically tunable universal filter and quadrature oscillator for low frequency biomedical and biosensor applications employing low-voltage differential difference transconductance amplifier (DDTA). The DDTA CMOS structure uses 0.5 V of supply voltage and consumes 277 nW of power. Unlike the previous universal filters, the proposed filter provides many transfer functions of the standard five transfer functions such as low-pass, high-pass, band-pass, band-stop and all-pass with both unity and controlled voltage gains as well as both inverting and non-inverting transfer functions. The natural frequency and the voltage gain of the five standard transfer functions can be controlled electronically. For the band-pass filter, the third intermodulation distortion (IMD<sub>3</sub>) was 0.37% for 20 mV<sub>pp</sub> input signal while the output integrated noise was 61.37 <inline-formula> <tex-math notation="LaTeX">$\mu \text{V}$ </tex-math></inline-formula>. The dynamic range (DR) was 53.27 dB for 1% IMD<sub>3</sub>. The quadrature oscillator has electronically and orthogonal control of the condition and frequency of oscillation. The proposed circuit and its applications were designed and verified via Cadence simulator tool using 0.13 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> UMC CMOS technology. Further, the circuit was evaluated by PSPICE simulation and experiment test using commercial OTA LM13700.https://ieeexplore.ieee.org/document/9807276/Universal filterquadrature oscillatordifferential difference transconductance amplifierlow-voltagelow-power CMOS |
| spellingShingle | Montree Kumngern Pichai Suksaibul Fabian Khateb Tomasz Kulej Electronically Tunable Universal Filter and Quadrature Oscillator Using Low-Voltage Differential Difference Transconductance Amplifiers IEEE Access Universal filter quadrature oscillator differential difference transconductance amplifier low-voltage low-power CMOS |
| title | Electronically Tunable Universal Filter and Quadrature Oscillator Using Low-Voltage Differential Difference Transconductance Amplifiers |
| title_full | Electronically Tunable Universal Filter and Quadrature Oscillator Using Low-Voltage Differential Difference Transconductance Amplifiers |
| title_fullStr | Electronically Tunable Universal Filter and Quadrature Oscillator Using Low-Voltage Differential Difference Transconductance Amplifiers |
| title_full_unstemmed | Electronically Tunable Universal Filter and Quadrature Oscillator Using Low-Voltage Differential Difference Transconductance Amplifiers |
| title_short | Electronically Tunable Universal Filter and Quadrature Oscillator Using Low-Voltage Differential Difference Transconductance Amplifiers |
| title_sort | electronically tunable universal filter and quadrature oscillator using low voltage differential difference transconductance amplifiers |
| topic | Universal filter quadrature oscillator differential difference transconductance amplifier low-voltage low-power CMOS |
| url | https://ieeexplore.ieee.org/document/9807276/ |
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