Bootstrapped two-electrode biosignal amplifier

Autor: Dobromir Petkov Dobrev, Tatyana Neycheva, Nikolay Mudrov
Rok vydání: 2008
Předmět:
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