ScholarLens Back to search
2003•Unpublished venueRequires access

Analysis of the dynamic SFDR property of high-accuracy current-steering D/A converters

Tao Chen, Georges Gielen

Open publisher page 12 citations

Abstract

The SFDR property is one of the most important dynamic properties of a DAC. It is limited by the dynamic nonlinearity errors. For a current-steering DAC, one of the most important nonlinearity errors is the delay differences among the current sources. In this paper, a mathematical model is proposed that explains the impact of delay differences on the SFDR of a thermometic DAC. A formula with clear physical meaning is derived. Simulations show that the formula and behavior level simulations fit very well. These results are also consistent with measurement results from a real chip.

About this research paper

What this paper is about

The SFDR property is one of the most important dynamic properties of a DAC. It is limited by the dynamic nonlinearity errors. For a current-steering DAC, one of the most important nonlinearity errors is the delay differences among the current sources. In this paper, a mathematical model is proposed that explains the impact of delay differences on the SFDR of a thermometic DAC. A formula with clear physical meaning is derived. Simulations show that the formula and behavior level simulations fit very well. These results are also consistent with measurement results from a real chip.

Why it matters

OpenAlex reports 12 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The SFDR property is one of the most important dynamic properties of a DAC. It is limited by the dynamic nonlinearity errors. For a current-steering DAC, one of the most important nonlinearity errors is the delay differences among the current sources. In this paper, a mathematical model is proposed that explains the impact of delay differences on the SFDR of a thermometic DAC. A formula with clear physical meaning is derived. Simulations show that the formula and behavior level simulations fit very well. These results are also consistent with measurement results from a real chip.

Key concepts: Spurious-free dynamic range, Nonlinear system, Property (philosophy), Current (fluid), Converters, Integral nonlinearity, Computer science, Electronic engineering

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Analysis of the dynamic SFDR property of high-accuracy current-steering D/A converters — Research Paper | ScholarLens