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

Author

Camin, Daniel Victor ; Pessina, Gianluigi

Author_Institution

Dipt. di Fisica, Milan Univ., Italy

Volume

1

fYear

1998

fDate

1998

Firstpage

494

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

circuit noise; differential amplifiers; feedback amplifiers; low-power electronics; nuclear electronics; opto-isolators; balanced output; circuit configuration; differential input; differential optocoupler amplifier; dynamic range; galvanic decoupling; high common mode disturbance environment; isolation amplifier; low bias current; low crossover distortion; optocoupled feedback; 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

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE

Conference_Location

Toronto, Ont.

ISSN

1082-3654

Print_ISBN

0-7803-5021-9

Type

conf

DOI

10.1109/NSSMIC.1998.775190

Filename

775190