Low Power CMOS Chopper Preamplifier Based on Source-Degeneration Transconductors
| Autor: | C. A. de la Cruz-Blas, M. T. Sanz-Pascual, O. J. Cinco-Izquierdo, Belén Calvo-López |
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| Přispěvatelé: | Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación, Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko, Elektroniko eta Telekomunikazio Saila |
| Rok vydání: | 2020 |
| Předmět: |
Physics
business.industry Preamplifier Low-pass filter Amplifier 020208 electrical & electronic engineering Low-noise flicker preamplifier Electrical engineering 02 engineering and technology Analog front-end Chopper CMOS Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering business Signal conditioning Chopping technique Voltage |
| Zdroj: | LASCAS Academica-e. Repositorio Institucional de la Universidad Pública de Navarra instname Academica-e: Repositorio Institucional de la Universidad Pública de Navarra Universidad Pública de Navarra |
| DOI: | 10.1109/lascas45839.2020.9068982 |
| Popis: | This paper describes the design of a low-power, low-noise flicker CMOS chopper preamplifier for sensor signal conditioning. The core amplifier and the Gm-C output low pass filter of the proposed fully differential preamplifier are based on a source degeneration transconductor. The circuit was designed in a standard 0.18μm CMOS process with 1.8V supply voltage. It shows 42dB gain, 1 kHz bandwidth and a total power consumption of 84 μW. The proposed configuration achieves a noise efficiency factor of 4.6 and a total input-referred noise of 560 nVrms integrated from 0.1 to 1 kHz. This work has been supported by CONACYT Doctoral Grant 467255 and CONACYT CB-2015-01-257985 Research Project. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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