资料下载
×
ICL7135 A D转换器的双斜率原理及应用实例
消耗积分:10 |
格式:rar |
大小:46 |
2009-06-10
Petc
分享资料个
Integrating A/D converters have two characteristics in
common. First, as the name implies, their output represents
the integral or average of an input voltage over a fixed period
of time. Compared with techniques which require that the
input is “frozen” with a sample-and-hold, the integrating
converter will give repeatable results in the presence of high
frequency noise (relative to the measurement period). A
second and equally important characteristic is that they use
time to quantize the answer, resulting in extremely small
nonlinearity errors and no possibility of missing output
codes. Furthermore, the integrating converter has very good
rejection of frequencies whose periods are an integral
multiple of the measurement period. This feature can be
used to advantage in reducing line frequency noise, for
example in laboratory instruments (Figure 1).
common. First, as the name implies, their output represents
the integral or average of an input voltage over a fixed period
of time. Compared with techniques which require that the
input is “frozen” with a sample-and-hold, the integrating
converter will give repeatable results in the presence of high
frequency noise (relative to the measurement period). A
second and equally important characteristic is that they use
time to quantize the answer, resulting in extremely small
nonlinearity errors and no possibility of missing output
codes. Furthermore, the integrating converter has very good
rejection of frequencies whose periods are an integral
multiple of the measurement period. This feature can be
used to advantage in reducing line frequency noise, for
example in laboratory instruments (Figure 1).
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
- 相关下载
- 相关文章
