0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator
This paper presents the extremely low-voltage supply of the CMOS structure of a differential difference transconductance amplifier (DDTA). With a 0.3-volt supply voltage, the circuit offers rail-to-rail operational capability. The circuit is designed for low-frequency biomedical and sensor applicati...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/7/2655 |
| _version_ | 1797437693786849280 |
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| author | Fabian Khateb Montree Kumngern Tomasz Kulej Dalibor Biolek |
| author_facet | Fabian Khateb Montree Kumngern Tomasz Kulej Dalibor Biolek |
| author_sort | Fabian Khateb |
| collection | DOAJ |
| description | This paper presents the extremely low-voltage supply of the CMOS structure of a differential difference transconductance amplifier (DDTA). With a 0.3-volt supply voltage, the circuit offers rail-to-rail operational capability. The circuit is designed for low-frequency biomedical and sensor applications, and it consumes 357.4 nW of power. Based on two DDTAs and two grounded capacitors, a voltage-mode universal filter and quadrature oscillator are presented as applications. The universal filter possesses high-input impedance and electronic tuning ability of the natural frequency in the range of tens up to hundreds of Hz. The total harmonic distortion (THD) for the band-pass filter was 0.5% for 100 mV<sub>pp</sub> @ 84.47 Hz input voltage. The slight modification of the filter yields a quadrature oscillator. The condition and the frequency of oscillation are orthogonally controllable. The frequency of oscillation can also be controlled electronically. The THD for a 67 Hz oscillation frequency was around 1.2%. The circuit is designed and simulated in a Cadence environment using 130 nm CMOS technology from United Microelectronics Corporation (UMC). The simulation results confirm the performance of the designed circuits. |
| first_indexed | 2024-03-09T11:25:05Z |
| format | Article |
| id | doaj.art-27dcb470d1f440828be62dc40cae36ea |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T11:25:05Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-27dcb470d1f440828be62dc40cae36ea2023-12-01T00:02:52ZengMDPI AGSensors1424-82202022-03-01227265510.3390/s220726550.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature OscillatorFabian Khateb0Montree Kumngern1Tomasz Kulej2Dalibor Biolek3Department 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, PolandDepartment of Electrical Engineering, Brno University of Defence, Kounicova 65, 662 10 Brno, Czech RepublicThis paper presents the extremely low-voltage supply of the CMOS structure of a differential difference transconductance amplifier (DDTA). With a 0.3-volt supply voltage, the circuit offers rail-to-rail operational capability. The circuit is designed for low-frequency biomedical and sensor applications, and it consumes 357.4 nW of power. Based on two DDTAs and two grounded capacitors, a voltage-mode universal filter and quadrature oscillator are presented as applications. The universal filter possesses high-input impedance and electronic tuning ability of the natural frequency in the range of tens up to hundreds of Hz. The total harmonic distortion (THD) for the band-pass filter was 0.5% for 100 mV<sub>pp</sub> @ 84.47 Hz input voltage. The slight modification of the filter yields a quadrature oscillator. The condition and the frequency of oscillation are orthogonally controllable. The frequency of oscillation can also be controlled electronically. The THD for a 67 Hz oscillation frequency was around 1.2%. The circuit is designed and simulated in a Cadence environment using 130 nm CMOS technology from United Microelectronics Corporation (UMC). The simulation results confirm the performance of the designed circuits.https://www.mdpi.com/1424-8220/22/7/2655universal filterquadrature oscillatordifferential difference transconductance amplifieranalog signal processing |
| spellingShingle | Fabian Khateb Montree Kumngern Tomasz Kulej Dalibor Biolek 0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator Sensors universal filter quadrature oscillator differential difference transconductance amplifier analog signal processing |
| title | 0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator |
| title_full | 0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator |
| title_fullStr | 0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator |
| title_full_unstemmed | 0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator |
| title_short | 0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator |
| title_sort | 0 3 volt rail to rail ddta and its application in a universal filter and quadrature oscillator |
| topic | universal filter quadrature oscillator differential difference transconductance amplifier analog signal processing |
| url | https://www.mdpi.com/1424-8220/22/7/2655 |
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