论文信息 - A 2.5 V broadband multi-bit /spl Sigma//spl Delta/ modulator with 95 dB dynamic range

A 2.5 V broadband multi-bit /spl Sigma//spl Delta/ modulator with 95 dB dynamic range

A cascaded multi-bit /spl Sigma//spl Delta/ modulator uses double sampling to achieve a conversion rate of at least 4 MSample/s at an oversampling ratio of 16. Partitioned data-weighted averaging extends the dynamic range to 95 dB. The circuit, integrated in 0.5 /spl mu/m CMOS, dissipates 150 mW from a 2.5 V supply.

K. Vleugels | S. Rabii | B.A. Wooley

[1] Paul R. Gray,et al. A 10 b, 20 Msample/s, 35 mW pipeline A/D converter , 1995, IEEE J. Solid State Circuits.

[2] G. Nicollini,et al. Low-voltage double-sampled /spl Sigma//spl Delta/ converters , 1997, 1997 IEEE International Solids-State Circuits Conference. Digest of Technical Papers.

[3] R. Baird,et al. Linearity enhancement of multibit /spl Delta//spl Sigma/ A/D and D/A converters using data weighted averaging , 1995 .

[4] Sergio Pernici,et al. Low-voltage double-sampled ΣΔ converters , 1997 .

[5] R. T. Baird,et al. Linearity enhancement of multibit delta-sigma A/D and D/A converters using data weighted averaging , 1995 .