Bootstrapped two-electrode biosignal amplifier
Autor: | Dobromir Petkov Dobrev, Tatyana Neycheva, Nikolay Mudrov |
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Rok vydání: | 2008 |
Předmět: |
Engineering
FET amplifier Amplifiers Electronic Current-feedback operational amplifier business.industry Electrodiagnosis Biomedical Engineering Electrical engineering Equipment Design Fully differential amplifier Electronics Medical Computer Science Applications law.invention law Operational transconductance amplifier Electronic engineering Operational amplifier Humans Linear amplifier Instrumentation amplifier Direct-coupled amplifier business |
Zdroj: | Medical & Biological Engineering & Computing. 46:613-619 |
ISSN: | 1741-0444 0140-0118 |
DOI: | 10.1007/s11517-008-0312-4 |
Popis: | Portable biomedical instrumentation has become an important part of diagnostic and treatment instrumentation. Low-voltage and low-power tendencies prevail. A two-electrode biopotential amplifier, designed for low-supply voltage (2.7-5.5 V), is presented. This biomedical amplifier design has high differential and sufficiently low common mode input impedances achieved by means of positive feedback, implemented with an original interface stage. The presented circuit makes use of passive components of popular values and tolerances. The amplifier is intended for use in various two-electrode applications, such as Holter monitors, external defibrillators, ECG monitors and other heart beat sensing biomedical devices. |
Databáze: | OpenAIRE |
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