Tricks For A 12 - Bit Sensing System
نویسنده
چکیده
When I started writing this article I thought a " cookbook " approach would be appropriate when describing the implementation of a good 12-bit layout. My assumption behind this type of approach was that a reference design could be provided, which would make the layout implementation easy. But I struggled with this topic long enough to find that this notion was fairly unrealistic. Because of the complexity of this problem, I am going to provide basic guidelines ending with a review of issues to be aware of while implementing your layout design. Throughout this discussion I will offer examples of good and bad layout implementations. I am doing this in the spirit of discussing concepts and not with the intent of recommending one layout as the only one to use. The application circuit that I'm going to use is a load-cell circuit that accurately measures the weight applied to the sensor, then displays the results on an LCD screen. The circuit diagram for this system is shown in Fig. 1.
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تاریخ انتشار 2003