×

AD640,pdf datasheet (120 MHz L

消耗积分:5 | 格式:rar | 大小:278 | 2009-08-27

分享资料个

The AD640 uses five cascaded limiting amplifiers to approximate
a logarithmic response to an input signal of wide dynamic
range and wide bandwidth. This type of logarithmic amplifier
has traditionally been assembled from several small scale ICs
and numerous external components. The performance of these
semidiscrete circuits is often unsatisfactory. In particular, the
logarithmic slope and intercept (see FUNDAMENTALS OF
LOGARITHMIC CONVERSION) are usually not very stable
in the presence of supply and temperature variations even after
laborious and expensive individual calibration. The AD640
employs high precision analog circuit techniques to ensure stability
of scaling over wide variations in supply voltage and temperature.
Laser trimming, using ac stimuli and operating
conditions similar to those encountered in practice, provides fully
calibrated logarithmic conversion.

下载并关注上传者 低至0.43元/天 开通VIP 免费下载

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

评论(0)
发评论

下载排行榜

全部0条评论

快来发表一下你的评论吧 !