This paper analyzes the advantages and limitations of using the floating(or flying-) capacitor technique as a building block with differential input and either differential or single-ended output to implement voltage amplifiers, multiplexers, and coherent amplitude demodulators. Theoretical analysis, supported by experimental results, shows that the fully differential configuration has a better...

This paper presents a predictable fixed gain instrumentation amplifier using switched capacitor instead of resistor to improve the accuracy of the gain as 10. This instrumentation amplifier builds up by two operational amplifiers which connect by switched capacitor. These switched capacitors are used to stable the whole circuit, fix the gain of total instrumentation amplifier. Using two operati...

© 2016, IRJET | Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal | Page 1049 PERFORMANCE EVALUATION OF DIFFERENTIAL BIO-POTENTIAL AMPLIFIER Prerna Mittal1, Padma Batra2 1M-Tech Degree in Electronics and Communication, Krishna Institute of Engineering and Technology, Ghaziabad, UPTU, India 2 Associate Professor, EC Department, Krishna Institute of Engineering and Technology, Ghaziabad...

In this paper, a high performance current-mode instrumentation amplifier has been proposed for low noise, low power, high CMRR and adjustable gain with an external resistor for various biomedical signal processing. The portable biomedical instrumentation has become an important part of diagnostic and treatment instrumentation, including telemedicine applications. The low voltage and low-power d...

In this paper a novel high performance all current-mode fully-differential (FD) Current mode Operational Amplifier (COA) in BIPOLAR technology is presented. The unique true current mode simple structure grants the proposed COA the largest yet reported unity gain frequency while providing low voltage low power operation. Benefiting from some novel ideas, it also exhibits high gain, high common m...

Applications of optical magnetometers in demanding environments require a high common-mode rejection ratio (CMRR) to effectively suppress ambient noise, but challenges still remain achieve experimental sensitivity at the quantum noise level. The authors develop compact magnetic gradiometer featuring CMRR and differential tens femtoteslas over broad dynamic range, including Earth's field magnitu...

Despite excellent high frequency and high speed performance, current-feedback operational ampli ̄ers (CFOAs) generally exhibit poor common-mode rejection (CMRR) properties, which limit their utility [Analogue IC design: The current mode approach, IEE Circuits and Systems Series, Peter peregrinus, 1990]. A novel current feedback operational ampli ̄er (CFOA) with improved performance is presented. ...