Detail publikačního výsledku

A 12-bit second order sigma-delta modulator design in 0.7 um CMOS technology

KLEDROWETZ, V.; PAVLÍK, M.; HÁZE, J.; FUJCIK, L.; PROKOP, R.

Original Title

A 12-bit second order sigma-delta modulator design in 0.7 um CMOS technology

English Title

A 12-bit second order sigma-delta modulator design in 0.7 um CMOS technology

Type

Paper in proceedings (conference paper)

Original Abstract

The presented work deals with design of the sigma-delta modulator in CMOS I2100 0,7 um technology. This modulator is designed using the switched capacitor technique (SC). For offset compensation of operational amplifiers (opamps) each integrator uses correlated double sampling technique (CDS), which minimize impact of offset of opamps. The sigma-delta modulator is part of the system for signal processing from sensor applications. Requirements for this converter were resolution 12-bits, voltage range 4 V, common mode voltage 2,5 V, +- 2 V input signal amplitude, bandwidth of a processed signal 5 kHz. Second order structure CIDIDF (Cascaded Integrator with Distributed Input and Distributed Feedback) was chosen.

English abstract

The presented work deals with design of the sigma-delta modulator in CMOS I2100 0,7 um technology. This modulator is designed using the switched capacitor technique (SC). For offset compensation of operational amplifiers (opamps) each integrator uses correlated double sampling technique (CDS), which minimize impact of offset of opamps. The sigma-delta modulator is part of the system for signal processing from sensor applications. Requirements for this converter were resolution 12-bits, voltage range 4 V, common mode voltage 2,5 V, +- 2 V input signal amplitude, bandwidth of a processed signal 5 kHz. Second order structure CIDIDF (Cascaded Integrator with Distributed Input and Distributed Feedback) was chosen.

Keywords

Sigma-delta modulator, SC technique, CDS technique, operational amplifier

Key words in English

Sigma-delta modulator, SC technique, CDS technique, operational amplifier

Authors

KLEDROWETZ, V.; PAVLÍK, M.; HÁZE, J.; FUJCIK, L.; PROKOP, R.

RIV year

2013

Released

28.06.2012

Publisher

VUT Brno

Location

Brno

ISBN

978-80-214-4539-0

Book

IMAPS CS International Conference 2012

Edition

1

Pages from

208

Pages to

213

Pages count

5

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@inproceedings{BUT93602,
  author="Vilém {Kledrowetz} and Michal {Pavlík} and Jiří {Háze} and Lukáš {Fujcik} and Roman {Prokop}",
  title="A 12-bit second order sigma-delta modulator design in 0.7 um CMOS technology",
  booktitle="IMAPS CS International Conference 2012",
  year="2012",
  series="1",
  number="1",
  pages="208--213",
  publisher="VUT Brno",
  address="Brno",
  isbn="978-80-214-4539-0"
}