A 16-bit 250-kHz delta-sigma modulator and decimation filter
- 1 April 2000
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 35 (4) , 458-467
- https://doi.org/10.1109/4.839906
Abstract
This paper describes a delta-sigma analog-to-digital converter (ADC) capable of converting input frequencies up to 250 kHz. It consists of a fifth-order switched-capacitor delta-sigma modulator and a decimation filter. Various design optimizations in the modulator are presented. The decimation filter consists of a comb filter followed by a novel, highly efficient and scalable finite impulse response filter. The ADC was implemented in 0.6-/spl mu/m CMOS technology. It achieves a dynamic range of 94 db.Keywords
This publication has 14 references indexed in Scilit:
- A digitally-corrected 20b delta-sigma modulatorPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A 15-b resolution 2-MHz Nyquist rate ΔΣ ADC in a 1-μm CMOS technologyIEEE Journal of Solid-State Circuits, 1998
- A third-order multistage sigma-delta modulator with reduced sensitivity to nonidealitiesIEEE Journal of Solid-State Circuits, 1991
- A higher order topology for interpolative modulators for oversampling A/D convertersIEEE Transactions on Circuits and Systems, 1990
- A fast-settling CMOS op amp for SC circuits with 90-dB DC gainIEEE Journal of Solid-State Circuits, 1990
- A 14-bit 80-kHz sigma-delta A/D converter: modeling, design and performance evaluationIEEE Journal of Solid-State Circuits, 1989
- FIR filter design over a discrete powers-of-two coefficient spaceIEEE Transactions on Acoustics, Speech, and Signal Processing, 1983
- An economical class of digital filters for decimation and interpolationIEEE Transactions on Acoustics, Speech, and Signal Processing, 1981
- Interpolation and decimation of digital signals—A tutorial reviewProceedings of the IEEE, 1981
- A computer program for designing optimum FIR linear phase digital filtersIEEE Transactions on Audio and Electroacoustics, 1973