Publication

High-precision DAC based on a self-calibrated sub-binary radix converter

Maher Kayal, Marc Pastre
2004
Conference Papers

Abstract

A novel DAC architecture based on a sub-binary radix converter is presented. By calibrating digitally the nonlinear sub-binary converter, it is possible to use it as a high-precision, high-resolution digital-to-analog converter. The analog part of the new DAC doesn't need precise components. It becomes thus possible to build high-performance DACs on a small area, neither requiring aggressive analog design nor highly matched components. By relaxing the constraints on the analog part, this new topology is very promising for the design of high-performance converters with modem technologies. Both digital and analog components are straightforward to design, allowing their automated synthesis by CAD tools. The new converter structure is presented, and the necessary calibration and conversion algorithms are detailed.

Official source

https://infoscience.epfl.ch/entities/publication/c3b04c78-9e0c-498f-ad0a-e34fce8b3e27

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Maher Kayal, Marc Pastre
2004
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c3b04c78-9e0c-498f-ad0a-e34fce8b3e27

About this result

Related concepts (32)

Digital-to-analog converter

In electronics, a digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal. An analog-to-digital converter (ADC) performs the reverse function. There are several DAC architectures; the suitability of a DAC for a particular application is determined by figures of merit including: resolution, maximum sampling frequency and others. Digital-to-analog conversion can degrade a signal, so a DAC should be specified that has insignificant errors in terms of the application.

Analog-to-digital converter

In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. An ADC may also provide an isolated measurement such as an electronic device that converts an analog input voltage or current to a digital number representing the magnitude of the voltage or current. Typically the digital output is a two's complement binary number that is proportional to the input, but there are other possibilities.

Analog computer

An analog computer or analogue computer is a type of computer that uses the continuous variation aspect of physical phenomena such as electrical, mechanical, or hydraulic quantities (analog signals) to model the problem being solved. In contrast, digital computers represent varying quantities symbolically and by discrete values of both time and amplitude (digital signals). Analog computers can have a very wide range of complexity.

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High-precision DAC based on a self-calibrated sub-binary radix converter

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