A new band pass incremental sigma-delta data converter with low oversampling ratio

Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ELEMECHCONF05_154

تاریخ نمایه سازی: 21 خرداد 1398

Abstract:

This letter describes a new band-pass incremental sigma-delta analog to digital data converter at low oversampling ratio for use in digital radio receivers for conversion of the intermediate frequency signal, so that a band pass incremental data converters can be constructed to perform analog-to-digital conversion for narrowband signals. Most of literatures to date only focus on the analysis of low-pass incremental modulators without extending to band-pass incremental systems. The advantage of this converter is high accuracy and low power consumption. The modulator operates at a 100 KHz in system level with an OSR of 14. Second and fourth order band-pass incremental sigma-delta A/D converters have been designed in system level in Matlab.

Authors

Hashem Roohi

Department of Shahid Chamran University, Ahvaz, Iran

Ehsan Shaabani

Department of Azad University, Mahshahr, Iran

Ebrahim Farshidi

Department of electrical engineering, Shahid Chamran University, Ahvaz, Iran