Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA
Operational transresistance amplifier (OTRA) is the most suitable analog building block (ABB) for transimpedance type signal processing due to its very nature of current input and voltage output. In this paper, OTRA-based transimpedance instrumentation amplifier (TIA) is presented. It provides high...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/648540 |
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| author | Rajeshwari Pandey Neeta Pandey Sajal K. Paul |
| author_facet | Rajeshwari Pandey Neeta Pandey Sajal K. Paul |
| author_sort | Rajeshwari Pandey |
| collection | DOAJ |
| description | Operational transresistance amplifier (OTRA) is the most suitable analog building block (ABB) for transimpedance type signal processing due to its very nature of current input and voltage output. In this paper, OTRA-based transimpedance instrumentation amplifier (TIA) is presented. It provides high differential gain and bandwidth, which is independent of gain. It also offers high common-mode rejection ratio (CMRR). The amplifier gain can be controlled electronically by implementing resistors using MOS transistors operating in linear region. The circuit can be made fully integrated. The proposed circuit is insensitive to parasitic input capacitances and input resistances due to the internally grounded input terminals of OTRA. Theoretical analysis is verified through PSPICE simulations and experimentation. |
| format | Article |
| id | doaj-art-dda17aec81c74cb88ba339379d4fb6f5 |
| institution | Kabale University |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-dda17aec81c74cb88ba339379d4fb6f52025-02-03T01:22:32ZengWileyJournal of Engineering2314-49042314-49122013-01-01201310.1155/2013/648540648540Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRARajeshwari Pandey0Neeta Pandey1Sajal K. Paul2Department of Electronics and Communication Engineering, Delhi Technological University, Delhi, IndiaDepartment of Electronics and Communication Engineering, Delhi Technological University, Delhi, IndiaDepartment of Electronics Engineering, Indian School of Mines, Dhanbad, IndiaOperational transresistance amplifier (OTRA) is the most suitable analog building block (ABB) for transimpedance type signal processing due to its very nature of current input and voltage output. In this paper, OTRA-based transimpedance instrumentation amplifier (TIA) is presented. It provides high differential gain and bandwidth, which is independent of gain. It also offers high common-mode rejection ratio (CMRR). The amplifier gain can be controlled electronically by implementing resistors using MOS transistors operating in linear region. The circuit can be made fully integrated. The proposed circuit is insensitive to parasitic input capacitances and input resistances due to the internally grounded input terminals of OTRA. Theoretical analysis is verified through PSPICE simulations and experimentation.http://dx.doi.org/10.1155/2013/648540 |
| spellingShingle | Rajeshwari Pandey Neeta Pandey Sajal K. Paul Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA Journal of Engineering |
| title | Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA |
| title_full | Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA |
| title_fullStr | Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA |
| title_full_unstemmed | Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA |
| title_short | Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA |
| title_sort | electronically tunable transimpedance instrumentation amplifier based on otra |
| url | http://dx.doi.org/10.1155/2013/648540 |
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