A fully differential opamp suitable for very-low voltage switched-capacitor circuits in standard CMOS technologies is introduced. The proposed two stage opamp needs a simple low voltage CMFB switched-capacitor circuit only for the second stage. Due to the reduced supply voltage, the CMFB circuit is implemented using bootstrapped switches. Minor modifications allow to use chopper stabilization f...

For battery-powered electronic products, one way to extend battery life is to use a versatile step-up/step-down DC-DC converter. A new versatile step-up/step-down switched-capacitor-based converter structure is proposed, and its efficiency is analyzed. In the step-down case, the efficiency is the same as, or even better than the efficiency of linear regulators. key words: DC-DC converter, switc...

This paper describes a 8 bits, 20 Msamples/s pipeline analog-to-digital converter implemented in 0.6 μm CMOS technology with a total power dissipation of 75.47 mW. Circuit techniques used include a precise comparator, operational amplifier and clock management. A switched capacitor is used to sample and multiplying at each stage. Simulation a worst case DNL and INL of 0.75 LSB. The design opera...

A high voltage capacitor is relatively frequently switched during the periods of the system operations. The distribution transformers are subjected to many stresses during normal and abnormal operations. In this paper we simulate a portion of the distribution network of Durgapur Steel Plant using MATLAB 7.7 and observe the effects of capacitor switching events on transformer terminal at differe...

This paper explores passive switched capacitor based RF receiver front ends for spectrum sensing. Wideband spectrum sensors remain the most challenging block in the software defined radio hardware design.The use of passive switched capacitors provides a very low power signal conditioning front end that enables parallel digitization and software control and cognitive capabilities in the digital ...

The MOS switch with bootstrapped technique is widely used in low-voltage switched-capacitor circuit. The switched-capacitor circuit with the bootstrapped technique could be a dangerous design approach in the nano-scale CMOS process due to the gate-oxide transient overstress. The impact of gate-oxide transient overstress on MOS switch in switchedcapacitor circuit is investigated in this work wit...

A novel switched-capacitor-based cascaded multilevel inverter is proposed in this paper, which is constructed by a switched-capacitor frontend and H-Bridge backend. Through the conversion of series and parallel connections, the switched capacitor frontend increases the number of voltage levels. The output harmonics and the component counter can be significantly reduced by the increasing number ...

This article proposes an interleaving switched-capacitor RF digital-to-analog converter (RFDAC) using edge combiner within the output stage to implicitly triple its effective clock carrier frequency and enable mm-wave (mmW) operation. Tripling in allows for increased energy efficiency, which is further improved by employing edge-combining-based frequency-tripling delay-locked loop (DLL) generat...