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Laser Trimming System is an equipment to adjust the resistance of chip resistor accurately by laser trimming. The measure precision of resistance measure system affects the precision of resistance directly. In order to reduce the influence of the measure error coming from measure system, a software method based on Wheatstone bridge is introduced to compensate measure error of Laser Trimming System...
Through the review and analysis of traditional and some recently reported conversion methods in SAR A/D converters, high speed, high resolution and low power approaches for SAR A/D converter are discussed. Based on SMIC 65 nm CMOS technology, two typical low power methods reported in previous works are validated by circuit design and simulation. Design challenges and considerations of high speed SAR...
A 10-bit 3 Ms/s 90 nm CMOS SAR A/D converter is presented in this paper. Pseudo-differential comparison architecture is utilized to improve the performance, where the errors caused by clock feed-through and charge injection can be considered as common-mode interferences. Instead of traditional voltage scaling architecture, an R-C combination based D/A converter is used to reduce the chip area. And...
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