2024-03-29T00:08:28Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/37912022-01-25T13:22:19Zcom_10261_90com_10261_4col_10261_469
DIGITAL.CSIC
author
García-González, José Manuel
author
Escalera, Sara
author
Rosa, José M. de la
author
Guerra, Oscar
author
Medeiro, Fernando
author
Río, Rocío del
author
Pérez-Verdú, Belén
author
Rodríguez-Vázquez, Ángel
2008-04-28T11:05:46Z
2008-04-28T11:05:46Z
2004-05
S. Escalera, J.M. García-González, J.M. de la Rosa, O. Guerra, F. Medeiro, R. del Río, B. Pérez-Verdú and A. Rodríguez-Vázquez: "A 0.35μm CMOS 17-bit@40kS/s Sensor A/D Interface Based on a Programmable-Gain Cascade 2-1 ΣΔ Modulator". Proceedings of the 2004 International Symposium on Circuits and Systems (ISCAS), pp. I.205-I.208, Vancouver, May 2004.
0-7803-8251-X/04
http://hdl.handle.net/10261/3791
This paper describes the design and electrical implementation of an A/D interface for sensor applications realized in a 0.35μm standard
CMOS technology. The circuit is composed of a low-noise instrumentation preamplifier and a SC cascade (2-1) ΣΔ modulator. The preamplifier, based on hybrid Nested-Miller compensated four-stage opamps, has a fixed gain of 10 and it is capable of handling signals with 20kHz-bandwidth and amplitudes ranging from μVs to hundreds of mVs with a signal-to-(noise+distortion) ratio
over 100dB. The modulator architecture has a programmable gain for a better fitting to the characteristics of different sensor outputs.
The design of both circuits is based upon a top-down CAD methodology which combines simulation and statistical optimization at different levels of the interface hierarchy. Simulation results show 17-bit@40kS/s for all cases of the modulator gain.
eng
openAccess
Sigma-Delta Modulator
Automotive
Sensor Interface
Analog-to-digital converters
A 0.35μm CMOS 17-bit@40kS/s Sensor A/D Interface Based on a Programmable-Gain Cascade 2-1 ΣΔ Modulator
comunicación de congreso
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https://digital.csic.es/bitstream/10261/3791/4/ISCAS04b.pdf.txt
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ISCAS04b.pdf.txt