Design and simulation of a tunable frequency OTA -C Chebyshev filter
A new transconductor operational amplifier（OTA） using active resistor of source degeneration was presented.The method was developed through acting differential pair degenerated by two MOSFET operating in the triode region as active resistor in its input stage,the circuit was designed in working in s...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2006-01-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/74661255/ |
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| _version_ | 1841537354070753280 |
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| author | JIANG Jin-guang WANG Yao-nan |
| author_facet | JIANG Jin-guang WANG Yao-nan |
| author_sort | JIANG Jin-guang |
| collection | DOAJ |
| description | A new transconductor operational amplifier（OTA） using active resistor of source degeneration was presented.The method was developed through acting differential pair degenerated by two MOSFET operating in the triode region as active resistor in its input stage,the circuit was designed in working in stable quiescent operating point with folded cas-cade output stage using voltage common-mode feedback（CMFB） circuit.As an tunable cutoff frequency fourth order Chebyshev lowpass filter,an accurately tunable Gm of OTA was used,which employed switching capacitor technique to tune Gm value.Simulated results show that the practical frequency response of the filter is very near to that of idealized prototype by applying 2-poly 4-metal 3.3V power supply 0.35μm CMOS technology spice model. |
| format | Article |
| id | doaj-art-a49ede1727d242148957d0fb625bc42e |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2006-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-a49ede1727d242148957d0fb625bc42e2025-01-14T08:39:02ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2006-01-01818674661255Design and simulation of a tunable frequency OTA -C Chebyshev filterJIANG Jin-guangWANG Yao-nanA new transconductor operational amplifier（OTA） using active resistor of source degeneration was presented.The method was developed through acting differential pair degenerated by two MOSFET operating in the triode region as active resistor in its input stage,the circuit was designed in working in stable quiescent operating point with folded cas-cade output stage using voltage common-mode feedback（CMFB） circuit.As an tunable cutoff frequency fourth order Chebyshev lowpass filter,an accurately tunable Gm of OTA was used,which employed switching capacitor technique to tune Gm value.Simulated results show that the practical frequency response of the filter is very near to that of idealized prototype by applying 2-poly 4-metal 3.3V power supply 0.35μm CMOS technology spice model.http://www.joconline.com.cn/zh/article/74661255/transconductor operational amplifiersource degenerationvoltage common-mode negative feedbackOTA-C filterChebyshev filter |
| spellingShingle | JIANG Jin-guang WANG Yao-nan Design and simulation of a tunable frequency OTA -C Chebyshev filter Tongxin xuebao transconductor operational amplifier source degeneration voltage common-mode negative feedback OTA-C filter Chebyshev filter |
| title | Design and simulation of a tunable frequency OTA -C Chebyshev filter |
| title_full | Design and simulation of a tunable frequency OTA -C Chebyshev filter |
| title_fullStr | Design and simulation of a tunable frequency OTA -C Chebyshev filter |
| title_full_unstemmed | Design and simulation of a tunable frequency OTA -C Chebyshev filter |
| title_short | Design and simulation of a tunable frequency OTA -C Chebyshev filter |
| title_sort | design and simulation of a tunable frequency ota c chebyshev filter |
| topic | transconductor operational amplifier source degeneration voltage common-mode negative feedback OTA-C filter Chebyshev filter |
| url | http://www.joconline.com.cn/zh/article/74661255/ |
| work_keys_str_mv | AT jiangjinguang designandsimulationofatunablefrequencyotacchebyshevfilter AT wangyaonan designandsimulationofatunablefrequencyotacchebyshevfilter |