A 0.3-V 98-dB Rail-to-Rail OTA in <inline-formula> <tex-math notation="LaTeX">$0.18~\mu$ </tex-math></inline-formula>m CMOS
A new solution for an ultra-low-voltage, ultra-low-power operational transconductance amplifier (OTA) is presented in the paper. The design exploits a three-stage structure with a Reversed Miller Compensation Scheme, where the input stage is based on a non-tailed bulk-driven differential pair. Optim...
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8985331/ |
| _version_ | 1818579517041541120 |
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| author | Tomasz Kulej Fabian Khateb |
| author_facet | Tomasz Kulej Fabian Khateb |
| author_sort | Tomasz Kulej |
| collection | DOAJ |
| description | A new solution for an ultra-low-voltage, ultra-low-power operational transconductance amplifier (OTA) is presented in the paper. The design exploits a three-stage structure with a Reversed Miller Compensation Scheme, where the input stage is based on a non-tailed bulk-driven differential pair. Optimization of the structure for very low supply voltage is discussed. The resulting amplifier outperforms other ultra-low-voltage OTAs in terms of a DC voltage gain and power efficiency, expressed by standard figures of merit. Experimental verification using a 0.18μm CMOS technology, with supply voltage of 0.3-V, showed a dissipation power of 13 nW, a DC voltage gain of 98 dB, a gain-bandwidth product of 3.1 kHz and an average slew-rate of 9.1 V/ms at 30 pF load capacitance. The experimental results agree well with simulations. |
| first_indexed | 2024-12-16T07:02:57Z |
| format | Article |
| id | doaj.art-ae99fb6edc4b490b951d514622aa3c10 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T07:02:57Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-ae99fb6edc4b490b951d514622aa3c102022-12-21T22:40:07ZengIEEEIEEE Access2169-35362020-01-018274592746710.1109/ACCESS.2020.29720678985331A 0.3-V 98-dB Rail-to-Rail OTA in <inline-formula> <tex-math notation="LaTeX">$0.18~\mu$ </tex-math></inline-formula>m CMOSTomasz Kulej0https://orcid.org/0000-0002-6315-9292Fabian Khateb1https://orcid.org/0000-0002-9864-9830Department of Electrical Engineering, Częstochowa University of Technology, Częstochowa, PolandDepartment of Microelectronics, Brno University of Technology, Brno, Czech RepublicA new solution for an ultra-low-voltage, ultra-low-power operational transconductance amplifier (OTA) is presented in the paper. The design exploits a three-stage structure with a Reversed Miller Compensation Scheme, where the input stage is based on a non-tailed bulk-driven differential pair. Optimization of the structure for very low supply voltage is discussed. The resulting amplifier outperforms other ultra-low-voltage OTAs in terms of a DC voltage gain and power efficiency, expressed by standard figures of merit. Experimental verification using a 0.18μm CMOS technology, with supply voltage of 0.3-V, showed a dissipation power of 13 nW, a DC voltage gain of 98 dB, a gain-bandwidth product of 3.1 kHz and an average slew-rate of 9.1 V/ms at 30 pF load capacitance. The experimental results agree well with simulations.https://ieeexplore.ieee.org/document/8985331/Bulk-drivenoperational transconductance amplifieroperational amplifierlow voltagelow power |
| spellingShingle | Tomasz Kulej Fabian Khateb A 0.3-V 98-dB Rail-to-Rail OTA in <inline-formula> <tex-math notation="LaTeX">$0.18~\mu$ </tex-math></inline-formula>m CMOS IEEE Access Bulk-driven operational transconductance amplifier operational amplifier low voltage low power |
| title | A 0.3-V 98-dB Rail-to-Rail OTA in <inline-formula> <tex-math notation="LaTeX">$0.18~\mu$ </tex-math></inline-formula>m CMOS |
| title_full | A 0.3-V 98-dB Rail-to-Rail OTA in <inline-formula> <tex-math notation="LaTeX">$0.18~\mu$ </tex-math></inline-formula>m CMOS |
| title_fullStr | A 0.3-V 98-dB Rail-to-Rail OTA in <inline-formula> <tex-math notation="LaTeX">$0.18~\mu$ </tex-math></inline-formula>m CMOS |
| title_full_unstemmed | A 0.3-V 98-dB Rail-to-Rail OTA in <inline-formula> <tex-math notation="LaTeX">$0.18~\mu$ </tex-math></inline-formula>m CMOS |
| title_short | A 0.3-V 98-dB Rail-to-Rail OTA in <inline-formula> <tex-math notation="LaTeX">$0.18~\mu$ </tex-math></inline-formula>m CMOS |
| title_sort | 0 3 v 98 db rail to rail ota in inline formula tex math notation latex 0 18 mu tex math inline formula m cmos |
| topic | Bulk-driven operational transconductance amplifier operational amplifier low voltage low power |
| url | https://ieeexplore.ieee.org/document/8985331/ |
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