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EnglishThe calibration of the transresistance gain of low-current dc amplifiers can be performed with the capacitance-charging method, where the calibration current is generated by a calibrated voltage ramp applied to a reference capacitor. The method is typically implemented with a purposely-built voltage source having a very low-frequency trapezoidal pe- riodic waveform output. Here we propose a variation of the method based on a sinusoidal excitation, that can be pro- vided by a commercial oscillator and therefore more easily implemented. Sampled sinusoidal input and output are pro- cessed with a seven-parameter sine-fitting algorithm. The comparison between calibration with sinusoidal and trape- zoidal excitations is ongoing and will be presented at the Conference.
Calibration system for low-current transresistance amplifiers with a low-frequency sinewave source / Ilaria, Finardi; Luca, Callegaro. - (2017). ((Intervento presentato al convegno XXXII International Union of Radio Science (URSI) General Assembly and Scientific Symposium Conference.
| Titolo: | Calibration system for low-current transresistance amplifiers with a low-frequency sinewave source |
| Autori: | |
| Data di pubblicazione: | 2017 |
| Citazione: | Calibration system for low-current transresistance amplifiers with a low-frequency sinewave source / Ilaria, Finardi; Luca, Callegaro. - (2017). ((Intervento presentato al convegno XXXII International Union of Radio Science (URSI) General Assembly and Scientific Symposium Conference. |
| Handle: | http://hdl.handle.net/11696/56733 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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| Paper_AE10_3_1809_.pdf | Documento in Pre-print | Non Pubblico - Accesso privato/ristretto | Utenti riconosciuti Richiedi una copia |
http://hdl.handle.net/11696/56733
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