A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS Process
Abstract- A novel low-voltage two-stage operational amplifier employing resistive biasing is presented. This amplifier implements neutralization and correction common mode stability in second stage while employs capacitive dc level shifter and coupling between two stages. The structure reduces the p...
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| Format: | Article |
| Language: | English |
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Iran University of Science and Technology
2010-12-01
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| Series: | Iranian Journal of Electrical and Electronic Engineering |
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| Online Access: | http://ijeee.iust.ac.ir/browse.php?a_code=A-10-284-1&slc_lang=en&sid=1 |
| _version_ | 1818521719905714176 |
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| author | S. H Mirhosseini A. Ayatollahi |
| author_facet | S. H Mirhosseini A. Ayatollahi |
| author_sort | S. H Mirhosseini |
| collection | DOAJ |
| description | Abstract- A novel low-voltage two-stage operational amplifier employing resistive biasing is presented. This amplifier implements neutralization and correction common mode stability in second stage while employs capacitive dc level shifter and coupling between two stages. The structure reduces the power consumption and increases output voltage swing. The compensation is performed by simple miller method. For each stage an independent common-mode feedback circuits has been used. Simulation results show that power consumption is 2.1 mW at 1V supply. The dc gain of the amplifier is about 70 dB while its output swing is as high as around 1.2V. |
| first_indexed | 2024-12-11T01:55:09Z |
| format | Article |
| id | doaj.art-eb4f8143d29a4de7a9f7621d699c6b64 |
| institution | Directory Open Access Journal |
| issn | 1735-2827 2383-3890 |
| language | English |
| last_indexed | 2024-12-11T01:55:09Z |
| publishDate | 2010-12-01 |
| publisher | Iran University of Science and Technology |
| record_format | Article |
| series | Iranian Journal of Electrical and Electronic Engineering |
| spelling | doaj.art-eb4f8143d29a4de7a9f7621d699c6b642022-12-22T01:24:38ZengIran University of Science and TechnologyIranian Journal of Electrical and Electronic Engineering1735-28272383-38902010-12-0164199204A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS ProcessS. H Mirhosseini0A. Ayatollahi1 Iran University of Science & Technology Iran University of Science & Technology Abstract- A novel low-voltage two-stage operational amplifier employing resistive biasing is presented. This amplifier implements neutralization and correction common mode stability in second stage while employs capacitive dc level shifter and coupling between two stages. The structure reduces the power consumption and increases output voltage swing. The compensation is performed by simple miller method. For each stage an independent common-mode feedback circuits has been used. Simulation results show that power consumption is 2.1 mW at 1V supply. The dc gain of the amplifier is about 70 dB while its output swing is as high as around 1.2V.http://ijeee.iust.ac.ir/browse.php?a_code=A-10-284-1&slc_lang=en&sid=1Common-mode feedback (CMFB) Switched capacitor (SC) Operational Transconductance amplifier (OTA) Operational Amplifier (Op-Amp) |
| spellingShingle | S. H Mirhosseini A. Ayatollahi A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS Process Iranian Journal of Electrical and Electronic Engineering Common-mode feedback (CMFB) Switched capacitor (SC) Operational Transconductance amplifier (OTA) Operational Amplifier (Op-Amp) |
| title | A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS Process |
| title_full | A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS Process |
| title_fullStr | A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS Process |
| title_full_unstemmed | A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS Process |
| title_short | A Low-Voltage, Low-Power, Two-Stage Amplifier for Switched-Capacitor Applications in 90 nm CMOS Process |
| title_sort | low voltage low power two stage amplifier for switched capacitor applications in 90 nm cmos process |
| topic | Common-mode feedback (CMFB) Switched capacitor (SC) Operational Transconductance amplifier (OTA) Operational Amplifier (Op-Amp) |
| url | http://ijeee.iust.ac.ir/browse.php?a_code=A-10-284-1&slc_lang=en&sid=1 |
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