2004
DOI: 10.1007/bf02344642
|View full text |Cite
|
Sign up to set email alerts
|

Two-electrode low supply voltage electrocardiogram signal amplifier

Abstract: Portable biomedical instrumentation has become an important part of diagnostic and treatment instrumentation, including telemedicine applications. Low-voltage and low-power design tendencies prevail. Modern battery cell voltages in the range of 3-3.6 V require appropriate circuit solutions. A two-electrode biopotential amplifier design is presented, with a high common-mode rejection ratio (CMRR), high input voltage tolerance and standard first-order high-pass characteristic. Most of these features are due to a… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
11
0
1

Year Published

2005
2005
2023
2023

Publication Types

Select...
4
2
2

Relationship

1
7

Authors

Journals

citations
Cited by 30 publications
(12 citation statements)
references
References 7 publications
0
11
0
1
Order By: Relevance
“…The moderately high differential input impedance of this amplifier would limit its application in cases where special, very high electrode-skin impedance electrodes are necessary and/or a high level of common mode interference has to be tolerated. In these cases, previously published designs are more convenient (DOBREV, 2002;2004;DOBREV and DASKALOV, 2002).…”
Section: V~n ~ Icmaz~ + Icmzcm/cmrrmentioning
confidence: 92%
“…The moderately high differential input impedance of this amplifier would limit its application in cases where special, very high electrode-skin impedance electrodes are necessary and/or a high level of common mode interference has to be tolerated. In these cases, previously published designs are more convenient (DOBREV, 2002;2004;DOBREV and DASKALOV, 2002).…”
Section: V~n ~ Icmaz~ + Icmzcm/cmrrmentioning
confidence: 92%
“…The OPAMPs X a , X b and resistors R 1 and R 2 provide a theoretical gain of 1 + 2 R2 R1 [16]. For the common-mode signal control, the technique of reducing the AFE's input common-mode impedance seen by the human-body/electrodes interface was considered [17], [18]. The solution implemented in [17] is simple and low-cost, so our circuit was based on it.…”
Section: A the Input Stagementioning
confidence: 99%
“…11), and a coarse ECG signal can be measured from them using a sensitive ECG amplifier. The ECG amplifier is based on a circuit presented in [22], and its output is low-pass filtered using a simple first degree 36 Hz RC-low-pass filter. The main amplifier board has also an amplifier for one Flexiforce 2 sensor, which could be used for measuring the weight of the person sitting on the chair.…”
Section: Wireless Implementationmentioning
confidence: 99%