Differential optocoupler amplifier with low noise, low power and balanced output

Author

Camin, Daniel Victor ; Pessina, Gianluigi

Author_Institution

Dipt. di Fisica, Ist. Nazionale di Fisica Nucl., Milan, Italy

Volume

47

Issue

6

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

2039

Lastpage

2044

Abstract

An optocoupler with differential input and balanced output was realized to make galvanic decoupling of a particle detector located in a high common mode disturbance environment. The circuit configuration incorporates a true differential optocoupled feedback, with low bias current in LEDs and photodiodes. The present circuit improves by a factor two the dynamic range of a previous solution. Large Common Mode (CMRR) and Power Supply (PSRR) Rejection Ratio, low crossover distortion, high dynamic range, low noise and power dissipation have been achieved

Keywords

differential amplifiers; light emitting diodes; nuclear electronics; opto-isolators; photodiodes; LEDs; differential input; differential optocoupler amplifier; galvanic decoupling; high common mode disturbance environment; high dynamic range; low bias current; low crossover distortion; low noise low power balanced output; photodiodes; power dissipation; Circuit noise; Differential amplifiers; Dynamic range; Feedback circuits; Galvanizing; Light emitting diodes; Low-noise amplifiers; Photodiodes; Radiation detectors; Working environment noise;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.903843

Filename

903843