Publication detail

Design of the 12bits Delta-Sigma Modulator using SC Technique

PAVLÍK, M. HÁZE, J. KLEDROWETZ, V.

Original Title

Design of the 12bits Delta-Sigma Modulator using SC Technique

English Title

Design of the 12bits Delta-Sigma Modulator using SC Technique

Type

journal article in Web of Science

Language

en

Original Abstract

The work deals with design of the 12-bit Delta-Sigma modulator in the switched capacitors (SC) technique. The first part describes a new accurate model in MATLAB. The model includes non-idealities occurring on transistor level in Delta-Sigma modulator. These errors are mainly caused by operational amplifiers (finite bandwidth, voltage unbalance, finite gain, slew rate), comparator (hysteresis error decision-making levels), DAC and used switches. The modulator at the transistor level was designed based on MATLAB simulation model. The technology of CMOS technology OnSemiconductor I2T100 0.7 um was used for design. SC and correlated double sampling (CDS) techniques were used for circuitry as well. The final modulator design reached a value of SNR = 82.2 dB (ENOB =13.4).

English abstract

The work deals with design of the 12-bit Delta-Sigma modulator in the switched capacitors (SC) technique. The first part describes a new accurate model in MATLAB. The model includes non-idealities occurring on transistor level in Delta-Sigma modulator. These errors are mainly caused by operational amplifiers (finite bandwidth, voltage unbalance, finite gain, slew rate), comparator (hysteresis error decision-making levels), DAC and used switches. The modulator at the transistor level was designed based on MATLAB simulation model. The technology of CMOS technology OnSemiconductor I2T100 0.7 um was used for design. SC and correlated double sampling (CDS) techniques were used for circuitry as well. The final modulator design reached a value of SNR = 82.2 dB (ENOB =13.4).

Keywords

Delta-Sigma modulator, Operational Amplifier, Switched Current technique, MATLAB model, Correlated Double Sampling

RIV year

2012

Released

02.04.2012

Publisher

Radioengineering

Location

Brno

Pages from

246

Pages to

252

Pages count

6

BibTex


@article{BUT75209,
  author="Michal {Pavlík} and Jiří {Háze} and Vilém {Kledrowetz}",
  title="Design of the 12bits Delta-Sigma Modulator using SC Technique",
  annote="The work deals with design of the 12-bit Delta-Sigma modulator in the switched capacitors (SC) technique. The first part describes a new accurate model in MATLAB. The model includes non-idealities occurring on transistor level in Delta-Sigma modulator. These errors are mainly caused by operational amplifiers (finite bandwidth, voltage unbalance, finite gain, slew rate), comparator (hysteresis error decision-making levels), DAC and used switches. The modulator at the transistor level was designed based on MATLAB simulation model. The technology of CMOS technology OnSemiconductor I2T100 0.7 um was used for design. SC and correlated double sampling (CDS) techniques were used for circuitry as well. The final modulator design reached a value of SNR = 82.2 dB (ENOB =13.4).",
  address="Radioengineering",
  chapter="75209",
  institution="Radioengineering",
  number="1",
  volume="21",
  year="2012",
  month="april",
  pages="246--252",
  publisher="Radioengineering",
  type="journal article in Web of Science"
}