Two-stage differential charge and transresistance amplifiers

被引：32
作者：
Massarotto, Marco [1 ,2 ]
Carlosena, Alfonso [1 ]
Lopez-Martin, Antonio J. [1 ,3 ]
机构：
[1] Univ Publ Navarra, Dept Elect & Elect Engn, Pamplona 31006, Spain
[2] Univ Brescia, Fac Ingn, Dipartimento Elettr Automaz, I-25123 Brescia, Italy
[3] New Mexico State Univ, Las Cruces, NM 88003 USA
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2008年 / 57卷 / 02期
关键词：
accelerometer; charge amplifier; charge-to-voltage converter; charge-type sensor; current-to-voltage converter; current-type sensor; photodiode; piezoelectric sensor; transresistance amplifier;
D O I：
10.1109/TIM.2007.909498
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel approach to the design of high-performance operational-amplifier-based differential charge and transresistance amplifiers is proposed. It is based on a two-stage topology: The first stage performs a differential measurement to single-ended signal conversion, providing a common-mode rejection that only depends on the matching between two resistors; the second stage filters the signal. Three novel topologies that are based on this technique are presented, analyzed, and measured, and design criteria are finally given. Their performance is compared with that of a state-of-the-art topology that is used as the benchmark, and it results in a better common-mode rejection ratio (CMRR).
引用
收藏
页码：309 / 320
页数：12
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