Fast charge sensitive preamplifiers were built using commercial current feedback operational amplifiers for fast read out of charge pulses from a photomultiplier tube. Current feedback opamps prove to be particularly well suited for this application where the charge from the detector is large, of the order of one million electrons, and high timing resolution is required. A proper circuit arrangement allows very fast signals, with rise times down to one nanosecond, while keeping the amplifier stable. After a review of current feedback circuit topology and stability constraints, we provide a "recipe" to build stable and very fast charge sensitive preamplifiers from any current feedback opamp by adding just a few external components. The noise performance of the circuit topology has been evaluated and is reported in terms of equivalent noise charge

Giachero, A., Gotti, C., Maino, M., & Pessina, G. (2011). Current feedback operational amplifiers as fast charge sensitive preamplifiers for photomultiplier read out. JOURNAL OF INSTRUMENTATION, 6(5), P05004 [10.1088/1748-0221/6/05/P05004].

Current feedback operational amplifiers as fast charge sensitive preamplifiers for photomultiplier read out

GIACHERO, ANDREA;GOTTI, CLAUDIO;MAINO, MATTEO;
2011

Abstract

Fast charge sensitive preamplifiers were built using commercial current feedback operational amplifiers for fast read out of charge pulses from a photomultiplier tube. Current feedback opamps prove to be particularly well suited for this application where the charge from the detector is large, of the order of one million electrons, and high timing resolution is required. A proper circuit arrangement allows very fast signals, with rise times down to one nanosecond, while keeping the amplifier stable. After a review of current feedback circuit topology and stability constraints, we provide a "recipe" to build stable and very fast charge sensitive preamplifiers from any current feedback opamp by adding just a few external components. The noise performance of the circuit topology has been evaluated and is reported in terms of equivalent noise charge
Articolo in rivista - Articolo scientifico
Front-end electronics for detector readout; Analogue electronic circuits
English
P05004
Giachero, A., Gotti, C., Maino, M., & Pessina, G. (2011). Current feedback operational amplifiers as fast charge sensitive preamplifiers for photomultiplier read out. JOURNAL OF INSTRUMENTATION, 6(5), P05004 [10.1088/1748-0221/6/05/P05004].
Giachero, A; Gotti, C; Maino, M; Pessina, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/45949
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