Title :
Two-Stage Differential Charge and Transresistance Amplifiers
Author :
Massarotto, Marco ; García, Alfonso Carlosena ; López-Martín, Antonio J.
Author_Institution :
Dept. of Electr. & Electron. Eng., Public Univ. of Navarra, Pamplona
Abstract :
A novel approach to the design of high-performance differential charge and transresistance amplifiers is proposed. It is based on a two-stage topology: the first stage provides common-mode rejection and performs a differential to single-ended signal conversion; the second one filters the signal. From this technique, two novel topologies are presented, analyzed, and measured. Their performance are compared with that of a conventional topology used as benchmark and results in a better CMRR, that only depends on the matching between two resistors
Keywords :
amplifiers; network topology; CMRR; common mode rejection; differential charge amplifiers; signal conversion; transresistance amplifiers; two stage topology; Accelerometers; Capacitors; Circuit topology; Differential amplifiers; Operational amplifiers; Photodiodes; Resistors; Signal to noise ratio; Transfer functions; Voltage; Charge amplifier; accelerometer; charge to voltage converter; charge type sensor; current to voltage converter; current type sensor; photodiode; piezoelectric sensor; transresistance amplifier;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE
Conference_Location :
Sorrento
Print_ISBN :
0-7803-9359-7
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2006.328312
