A 14-BIT BANDPASS MASH SIGMA-DELTA PIPELINE A/D CONVERTER |
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| S. Marabelli, A. Fornasari, P. Malcovati, F. Maloberti |
- Abstract:
- In this paper a two stage bandpass MASH (multi-stage noise shaping) sigma-delta (Σ∆) modulator is presented. A resolution of 14 bits has been achieved over a 5 MHz band around an intermediate frequency (IF) of 20 MHz with a clock frequency of 80 MHz. This performance is obtained using a 6-th order bandpass Σ∆ modulator followed by a 10 bit pipeline converter. The proposed circuit has been extensively simulated, both at behavioral and at circuit level, and results are illustrated.
- Keywords:
- Bandpass Σ∆ modulator, MASH Σ∆ modulator, A/D converter
- Download:
- IMEKO-IWADC-2003-22.pdf
- DOI:
- -