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This paper presents a statistics-based digital background calibration technique for digital-to-analog converter (DAC) unit elements mismatch in pipelined analog-to-digital converters (ADCs). The proposed calibration method continuously measures and digitally mitigates sub-DAC (SDAC) mismatch errors in background during the normal data-conversion operation. In this method, the probability density function...
In this paper design and simulation of a 5th order elliptic filter is presented, which its bandwidth is adjustable for WiMAX standard. This filter is realized by a switched capacitor ladder structure. Since the AC analysis of this switched capacitor filter is not possible in HSPICE, so in order to perform the AC analysis the equivalent z-domain model of the filter is also presented. This filter has...
This paper presents a new time-domain design procedure for three-stage amplifiers with reversed nested Miller compensation (RNMC). By utilizing this method, the values of the compensation capacitors are properly selected to achieve the best settling time. To demonstrate the effectiveness of the proposed method, a three-stage amplifier is designed and simulated in a 1V, 90nm CMOS technology. Simulation...
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