A bipolar optocoupler isolation amplifier with high precision and wide bandwidth / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 870-874, 2005.
Article
in Chinese
| WPRIM
| ID: wpr-238321
ABSTRACT
To fit the technological requirements in electrical impedance tomography system, an improved bipolar optocoupler isolation amplifier based on single analog optocoupler was realized. The experimental results illustrates that the full power -3dB bandwidth of this circuit is greater than 800 KHz, the equivalent output noise is lower than 50 uV(RMS), and the linearity at +/- 4 V inputs is lower than 0.01%. In addition to these features, the circuit also have the advantages of simple structure and no distortion caused by mismatch between analog optocouplers.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Tomography
/
Electric Impedance
/
Equipment Design
/
Amplifiers, Electronic
Limits:
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2005
Type:
Article
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