نتایج جستجو برای: switched capacitor
تعداد نتایج: 33016 فیلتر نتایج به سال:
The effect of MOSFET gate-oxide reliability on MOS switch with bootstrapped technique is investigated with the switched-capacitor circuit in a 130-nm CMOS process. The sample-and-hold amplifier with the openloop configuration is used to verify the impact of MOS switch gate-oxide reliability on the switched-capacitor circuit. After overstress on the MOS switch of sampleand-hold amplifier, the ci...
A 4.6 W/mm2 Power Density 86% Efficiency On-Chip Switched Capacitor DC-DC Converter in 32nm SOI CMOS
The future trends in microprocessor supply current requirements represent a bottleneck for next generation highperformance microprocessors since the number of supply pins will constitute an increasingly larger fraction of the total number of package pins available. This leaves few pins available for signaling. On-chip power conversion is a means to overcome this limitation by increasing the inp...
A behavioral model of a second order switchedcapacitor Sigma-Delta modulator is presented. The purpose of this work is the presentation of a behavioral model of a second order switched capacitor ΣΔ modulator considering (Error due to Clock Jitter, Thermal noise Amplifier Noise, Amplifier Slew-Rate, Non linearity of amplifiers, Gain error, Charge Injection, Clock Feedthrough, and Nonlinear on-re...
Abstrac tThis paper presents a procedure for the power-optimal design of high-resolution low-bandwidth switched-capacitor (SC) ∆Σ modulators (∆ΣMs). The most power efficient ΔΣ architecture is identified among single-loop switched-capacitor (SC) feedback (FB) and feed-forward (FF) topologies with different loop order N, oversampling ratio OSR, and quantizer resolution B. Based on the results ob...
In this paper we present a switched-capacitor matched filter for the satellite On-Board Data Handling (OBDH) Litton Coded bus. The proposed filter represents the analog frontend of the bus interface (modem) in the Central Data Management Unit (CDMU) and in each Remote Terminal Unit (RTU) of the satellite on-board communication system. The filter consists of a 16-taps switched-capacitor FIR stru...
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Recently, we developed a low power consumption and small total capacitance switched-capacitor filter using a single operational amplifier. It is called a semi-parallel cyclic type (SPCT) filter, in which each capacitance is in proportion to the square root of a transfer function coefficient value. In this paper, we propose the SPCT filter using a single unity gain buffer (UGB). It will be refer...
Switched capacitor filters have been in wide-spread used for a few years, for the realization of stable, accurate and high quality filters for operating frequencies below the megahertz range. This paper would like to prove the feasibility of an integrated and tuned switched capacitor filter with high quality factor of several hundreds for wireless radio frequency applications. The filter was de...
In order to eliminate the use of operational amplifiers (opamps) in sampled-data systems and thus avoid several delicate tradeoffs involved with their design, a new class of switched-capacitor circuits based on comparators was reported. The novelty of this comparator-based switched-capacitor (CBSC) design method is the detection of a virtual ground condition rather than forcing it through feedb...
In order to improve both resolution and stability of single bit high order Sigma-Delta Modulators, quantization noise suppression should be carried out not only at DC but also within the bandwidth of interest. This noise suppression at frequencies different from zero is carried out with the use of resonators. Switched-Capacitor resonators at fS/n can be designed using integrating or delaying el...
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