A low-voltage transconductor for analog signal-processing applications
This dissertation presents a low-voltage low-power voltage-to-current converter (V-I Converter) realized using TSMC 40 nm CMOS technology. The desired circuit operates at a supply voltage of 0.45 V with an input signal range of 0.1 V to 0.3 V. It consists of cutoff based active resistors, level shif...
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| Format: | Thesis-Master by Coursework |
| Language: | English |
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Nanyang Technological University
2025
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| Online Access: | https://hdl.handle.net/10356/182094 |
| _version_ | 1826120460410028032 |
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| author | Chen, Haoze |
| author2 | Chan Pak Kwong |
| author_facet | Chan Pak Kwong Chen, Haoze |
| author_sort | Chen, Haoze |
| collection | NTU |
| description | This dissertation presents a low-voltage low-power voltage-to-current converter (V-I Converter) realized using TSMC 40 nm CMOS technology. The desired circuit operates at a supply voltage of 0.45 V with an input signal range of 0.1 V to 0.3 V. It consists of cutoff based active resistors, level shifters, a three-stage operational trans-conductance amplifier (OTA), and the resistor array to produce programmable output currents with low temperature coefficients. The V-I Converter has achieved temperature coefficients of less than 54.68 ppm/°C for all the output currents between -20 °C and 80 °C, with a power dissipation of less than 2.76 μW. The obtained bandwidth is 34.45 kHz, and the total harmonic distortion (THD) is -56.66 dB at 1 kHz, 0.1 VPP input signal. With its low-voltage low-power consumption, multiple output currents having low temperature coefficient, it can be applied for portable devices, implantable electronics, analog signal-processing and sensor signal processing applications. |
| first_indexed | 2025-03-09T12:43:01Z |
| format | Thesis-Master by Coursework |
| id | ntu-10356/182094 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-03-09T12:43:01Z |
| publishDate | 2025 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1820942025-01-10T15:48:35Z A low-voltage transconductor for analog signal-processing applications Chen, Haoze Chan Pak Kwong School of Electrical and Electronic Engineering epkchan@ntu.edu.sg Engineering This dissertation presents a low-voltage low-power voltage-to-current converter (V-I Converter) realized using TSMC 40 nm CMOS technology. The desired circuit operates at a supply voltage of 0.45 V with an input signal range of 0.1 V to 0.3 V. It consists of cutoff based active resistors, level shifters, a three-stage operational trans-conductance amplifier (OTA), and the resistor array to produce programmable output currents with low temperature coefficients. The V-I Converter has achieved temperature coefficients of less than 54.68 ppm/°C for all the output currents between -20 °C and 80 °C, with a power dissipation of less than 2.76 μW. The obtained bandwidth is 34.45 kHz, and the total harmonic distortion (THD) is -56.66 dB at 1 kHz, 0.1 VPP input signal. With its low-voltage low-power consumption, multiple output currents having low temperature coefficient, it can be applied for portable devices, implantable electronics, analog signal-processing and sensor signal processing applications. Master's degree 2025-01-07T08:27:40Z 2025-01-07T08:27:40Z 2024 Thesis-Master by Coursework Chen, H. (2024). A low-voltage transconductor for analog signal-processing applications. Master's thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/182094 https://hdl.handle.net/10356/182094 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering Chen, Haoze A low-voltage transconductor for analog signal-processing applications |
| title | A low-voltage transconductor for analog signal-processing applications |
| title_full | A low-voltage transconductor for analog signal-processing applications |
| title_fullStr | A low-voltage transconductor for analog signal-processing applications |
| title_full_unstemmed | A low-voltage transconductor for analog signal-processing applications |
| title_short | A low-voltage transconductor for analog signal-processing applications |
| title_sort | low voltage transconductor for analog signal processing applications |
| topic | Engineering |
| url | https://hdl.handle.net/10356/182094 |
| work_keys_str_mv | AT chenhaoze alowvoltagetransconductorforanalogsignalprocessingapplications AT chenhaoze lowvoltagetransconductorforanalogsignalprocessingapplications |