Instrumentation amplifiers and voltage controlled current sources for LHC cryogenic instrumentation
Instrumentation amplifiers and voltage controlled current sources have been designed by using single operational amplifiers (OPA124, TLE2071 and OPA627). Their performance has been evaluated in the laboratory and under neutron radiation. On line measurements of the offset voltages, offset currents,...
| Autores: | , , , , , , , , , , , , , , , , , |
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| Tipo de recurso: | capítulo de libro |
| Fecha de publicación: | 2000 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/60871 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/60871 |
| Access Level: | acceso abierto |
| Palabra clave: | 537.8 Radiation effects Instrumentation amplifiers Electronics Operational amplifiers CERN Electrónica (Física) Radiactividad |
| Sumario: | Instrumentation amplifiers and voltage controlled current sources have been designed by using single operational amplifiers (OPA124, TLE2071 and OPA627). Their performance has been evaluated in the laboratory and under neutron radiation. On line measurements of the offset voltages, offset currents, closed loop gain, CMRR and bias currents were performed on the amplifiers. The current sources were set to a constant value and the current was monitored on-line. The radiation tolerance of commercial voltage references has also been investigated. The radiation was performed out in ITN (Portugal) research nuclear reactor. In comparison to previous experimental campaigns the gamma radiation has been reduced by a factor 15 for a given neutron dose. This is achieved thanks to a recently constructed facility for neutron beam extraction |
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