分享资料个
The AD9241 is a 1.25 MSPS， single supply， 14-bit analog-todigital converter （ADC）。 It combines a low cost， high speed CMOS process and a novel architecture to achieve the resolution and speed of existing hybrid implementations at a fraction of the power consumption and cost. It is a complete， monolithic ADC with an on-chip， high performance， low noise sample-and-hold amplifier and programmable voltage reference. An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application. The device uses a multistage differential pipelined architecture with digital output error correction logic to guarantee no missing codes over the full operating temperature range. The input of the AD9241 is highly flexible， allowing for easy interfacing to imaging， communications， medical， and dataacquisition systems. A truly differential input structure allows for both single-ended and differential input interfaces of varying input spans. The sample-and-hold amplifier （SHA） is equally suited for both multiplexed systems that switch full-scale voltage levels in successive channels as well as sampling single-channel inputs at frequencies up to and beyond the Nyquist rate. Also， the AD9241 performs well in communication systems employing Direct-IF Down Conversion since the SHA in the differential input mode can achieve excellent dynamic performance well beyond its specified Nyquist frequency of 0.625 MHz. A single clock input is used to control all internal conversion cycles. The digital output data is presented in straight binary output format. An out-of-range （OTR） signal indicates an overflow condition which can be used with the most significant bit to determine low or high overflow.
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
全部0条评论
快来发表一下你的评论吧 !
