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A 30-mW 10.7-MHz pseudo-N-path sigma-delta band-pass modulator

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4 Author(s)
Francesconi, F. ; Dipartimento di Elettronica, Pavia Univ., Italy ; Caiulo, G. ; Liberali, V. ; Maloberti, F.

This paper presents a sigma-delta modulator designed to convert band-pass signals for digital radio and cellular telephony. The proposed architecture employs only one operational amplifier, thus allowing a reduction of power consumption. A prototype implemented in a 1.2-/spl mu/m double-poly double-metal BiCMOS technology exhibits an SNR equivalent to 8 bits of resolution over a 200-kHz band, and dissipates only 30 mW with a 5-V supply.

Published in:

VLSI Circuits, 1996. Digest of Technical Papers., 1996 Symposium on

Date of Conference:

13-15 June 1996