A Differential Cyclic Analog-to-Digital Converter for Energy Meter Systems
نویسنده
چکیده
In this paper, a differential cyclic analog-to-digital converter based in switched-capacitor techniques is presented. This approach allows a reduced die size and achieves a higher precision, making this circuit suitable to low speed measurements, such electric energy meter systems where a minimum sampling rate of 1,200 samples per second is required for 2-channel systems (single-phase) and 7,600 samples per second for threephase systems. The ADC fabricated in AMS 0.35μm digital CMOS integration process can achieve a 10-bit resolution at 7.6k samples per second conversion rate and occupies a 0.36 mm 2 silicon area.
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تاریخ انتشار 2013