A VLSI Implementation of a New Low Voltage 5th Order Differential Gm-C Low-Pass Filter with Auto-Tuning Loop in CMOS Technology
In this paper a new low voltage 5th order Gm-C Bessel type low-pass filter (LPF) with auto-tuning loop and higher dynamic range, designed in CMOS technology, is presented. The cut-off frequency can be tuned in (10-42)MHz range by modifying the values of the grounded capacitors using a digital logi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Stefan cel Mare University of Suceava
2011-02-01
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| Series: | Advances in Electrical and Computer Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.4316/AECE.2011.01004 |
| _version_ | 1828764891316486144 |
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| author | BOZOMITU, R. G. COJAN, N. |
| author_facet | BOZOMITU, R. G. COJAN, N. |
| author_sort | BOZOMITU, R. G. |
| collection | DOAJ |
| description | In this paper a new low voltage 5th order Gm-C Bessel type low-pass filter (LPF) with auto-tuning loop and higher dynamic range, designed in CMOS technology, is presented. The cut-off frequency can be tuned in (10-42)MHz range by modifying the values of the grounded capacitors using a digital logic. The proposed structure is based on an auto-tuning loop in order to maintain the Gm/C ratio independent of the process, supply voltage and temperature variations, assuring the cut-off frequency of the LPF independently of these factors. The proposed 5th order Gm-C Bessel type low-pass filter provides 5% variation of the cut-off frequency in all critical corners, a 400mVpp(diff) dynamic range, THD less than 1% and 21.6mW power consumption from 1.8V supply voltage. The simulations performed in 65nm CMOS process confirm the theoretical results. |
| first_indexed | 2024-12-11T06:39:05Z |
| format | Article |
| id | doaj.art-d9cdda23c7b0405ca5184b38806b23e1 |
| institution | Directory Open Access Journal |
| issn | 1582-7445 1844-7600 |
| language | English |
| last_indexed | 2024-12-11T06:39:05Z |
| publishDate | 2011-02-01 |
| publisher | Stefan cel Mare University of Suceava |
| record_format | Article |
| series | Advances in Electrical and Computer Engineering |
| spelling | doaj.art-d9cdda23c7b0405ca5184b38806b23e12022-12-22T01:17:17ZengStefan cel Mare University of SuceavaAdvances in Electrical and Computer Engineering1582-74451844-76002011-02-01111233010.4316/AECE.2011.01004A VLSI Implementation of a New Low Voltage 5th Order Differential Gm-C Low-Pass Filter with Auto-Tuning Loop in CMOS TechnologyBOZOMITU, R. G.COJAN, N.In this paper a new low voltage 5th order Gm-C Bessel type low-pass filter (LPF) with auto-tuning loop and higher dynamic range, designed in CMOS technology, is presented. The cut-off frequency can be tuned in (10-42)MHz range by modifying the values of the grounded capacitors using a digital logic. The proposed structure is based on an auto-tuning loop in order to maintain the Gm/C ratio independent of the process, supply voltage and temperature variations, assuring the cut-off frequency of the LPF independently of these factors. The proposed 5th order Gm-C Bessel type low-pass filter provides 5% variation of the cut-off frequency in all critical corners, a 400mVpp(diff) dynamic range, THD less than 1% and 21.6mW power consumption from 1.8V supply voltage. The simulations performed in 65nm CMOS process confirm the theoretical results.http://dx.doi.org/10.4316/AECE.2011.01004auto-tuningbiquadCMOSGm-C filtertransconductorVLSI |
| spellingShingle | BOZOMITU, R. G. COJAN, N. A VLSI Implementation of a New Low Voltage 5th Order Differential Gm-C Low-Pass Filter with Auto-Tuning Loop in CMOS Technology Advances in Electrical and Computer Engineering auto-tuning biquad CMOS Gm-C filter transconductor VLSI |
| title | A VLSI Implementation of a New Low Voltage 5th Order Differential Gm-C Low-Pass Filter with Auto-Tuning Loop in CMOS Technology |
| title_full | A VLSI Implementation of a New Low Voltage 5th Order Differential Gm-C Low-Pass Filter with Auto-Tuning Loop in CMOS Technology |
| title_fullStr | A VLSI Implementation of a New Low Voltage 5th Order Differential Gm-C Low-Pass Filter with Auto-Tuning Loop in CMOS Technology |
| title_full_unstemmed | A VLSI Implementation of a New Low Voltage 5th Order Differential Gm-C Low-Pass Filter with Auto-Tuning Loop in CMOS Technology |
| title_short | A VLSI Implementation of a New Low Voltage 5th Order Differential Gm-C Low-Pass Filter with Auto-Tuning Loop in CMOS Technology |
| title_sort | vlsi implementation of a new low voltage 5th order differential gm c low pass filter with auto tuning loop in cmos technology |
| topic | auto-tuning biquad CMOS Gm-C filter transconductor VLSI |
| url | http://dx.doi.org/10.4316/AECE.2011.01004 |
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