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نمایش تعداد 1-10 از 238
Closed-form CRLBs for SNR estimation from turbo-coded square-QAM-modulated signals
A nonlinear signal specific ADC for efficient neural recording
the outgoing bit rate carrying the recorded neural data.
Another major benefit of digitizing neural signals using a proper nonlinear analog-to-digital converter (ADC) is the improvement in the signal-to-noise ratio (SNR) of the signal. The 8-b nonlinear...
An Ultra-low Power Redundant Split-DAC SA-ADC using Power-optimized Programmable Comparator
An ultra-low power successive approximation(SA) analog-to-digital converter (ADC) based on the redundant search algorithm is proposed. The power consumption of thecomparator is significantly reduced through gain control of the preamplifier during...
Analysis of the linearity of pipelined ADC due to capacitor non-linearity
In this paper, the effect of capacitor non-linearity
on the linearity of a pipelined ADC is analyzed. First, the effect
of capacitor non-linearity on the characteristics of a 1.5-bit
residue stage is ...
A Charge-Redistribution Phase-Domain ADC Using an IQ-Assisted Binary-Search Algorithm
Phase-domain Analog-to-Digital Converters (Ph-ADCs) have been considered for power-efficient implementation of body-area network transceivers employing phase demodulation. Conventional implementations of the Ph-ADCs, which work based on a full...
An ultra-low-power 10-Bit 100-kS/s successive-approximation analog-to-digital converter
Successive-approximation analog-to-digital converters (SA-ADCs) have recently been widely used for
moderate-speed moderate-resolution applications where power consumption is of major concern. In this paper, several techniques are proposed...
A Low-Power Time-Based Phase-Domain Analog-to- Digital Converter
This paper presents a low-power time-based phase domain analog-to-digital converter (Ph-ADC). The proposed circuit employs not only the binary-search IQ-assisted algorithm, but also time-domain signal processing to extract the output digital codes...
Digital Background Calibration of Capacitor Mismatch Errors in Pipelined ADCs
A digital background calibration technique is proposed to correct for the linearity error due to capacitor mismatches in pipelined analog-to-digital converters (ADCs). During the normal ADC operation, it randomly swaps the feedback capacitor...