This paper discusses a circuit family including a dependent switched capacitor (DSC). The DSC function is instantaneously short of one capacitor at the moment when its voltage reaches a threshold. The chaos generation can be guaranteed theoretically, We also consider a master-slave system. If there does not exist a homoclinic orbit in the master chaos attractor, it exhibits either in-phase or i...

| Periodic small-signal analysis is a recently developed approach for AC and noise analysis of linear periodically-varying circuits. This paper presents several new approaches to characterizing the transfer functions, noise, and distortion of communication circuits using this new technique. A receiver is used as an example, but the techniques presented are applicable to a wide variety of circui...

A simple and efficient method for improving the linearity of a two capacitor charge redistribution digital to analog converter (DAC) is presented. This method utilizes consecutive interchanging of the voltages on the capacitors for each bit being converted. It is shown that the accuracy achieved by the proposed algorithm is orders of magnitude higher compared to this of the conventional method....

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A circuit for generating reference voltages for an A D converter is presented. The circuit consisting of a bandgap reference and a driver circuit is capable of operating on sub 1-volt supply voltages. The circuit is designed using a standard 0.5 p m CMOS technology. Simulations show maximum 0.24% variation in the generated reference voltage over a temperature range from -20 "C to I00"C and a su...

This paper addresses the challenges related to the design of a high-resolution, low-latency capacitive displacement sensor. An auto-alignment mechanism of the sensor head is proposed which relaxes the resolution requirement of the readout circuit. Different interfacing principles are investigated and analyzed, and the advantage of using a switched-capacitor readout topology for a specific appli...

A forward/reverse body bias generator (BBG) which operates under wide supply-range is proposed. Fine-grained body biasing (FGBB) is effective to reduce variability and increase energy efficiency on digital LSIs. Since FGBB requires a number of BBGs to be implemented, simple design is preferred. We propose a BBG with charge pumps for reverse body bias and the BBG operates under wide supply-range...

SUMMARY A multiple-input switched-capacitor DC-DC converter which can realize long battery runtime is proposed in this letter. Unlike conventional converters for a back-lighting application, the proposed converter drives some LEDs by converting energy from solar cells. Furthermore , the proposed converter can charge a lithium battery when an output load is light. The validity of circuit design ...

In this paper, a suitable LaSalle principle for continuous-time linear switched systems is used to characterize invariant sets and their associated switching laws. An algorithm to determine algebraically these invariants is proposed. The main novelty of our approach is that we require no dwell time conditions on the switching laws. By not focusing on restricted control classes we are able to de...

Long term time dependent transients in l/f noise have been observed and are reported on NMOS transistors operating with switched gate bias. The results are interpreted as a modification of the time dependence of random telegraph signals. The results have important implications in the understanding of the nature of l/f noise and in the understanding the effect of l/f noise in switched capacitor ...