Author, as appears in the article.: Espitia Castillo JD; Cantó Navarro E; Vidal-Idiarte E
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Cantó Navarro, Enrique Fernando / Espitia Castillo, Juan David / Vidal Idiarte, Enric
Keywords: Successive approximation register (sar) Pwm Lpf Interleaved sar adc Fpga Analog-to-digital converter (adc) successive approximation register (sar) pwm lpf fpga conversion
Abstract: The flexibility provided by FPGAs permits the implementation of several ADCs, each one configured with the required bit resolution and sampling frequency. The paper presents the design and implementation of scalable and parametrizable analog-to-digital converters (ADC), based on a successive approximation register (SAR), on FPGAs (field programmable gate arrays). Firstly, the work develops a systematic methodology for the implementation of a parametrizable SAR-based ADC from a set of building modules, such as the pulse-width modulator (PWM), external low-pass filter (LPF) and the analog comparator. The presented method allows choosing the LPF parameters for the required performance (resolution bits and sampling frequency) of a SAR-based ADC. Secondly, the paper also presents several optimizations on the PWM module to enhance the sampling frequency of implemented ADCs, and the method to choose the LPF parameters is adapted. The PWM and SAR logic are synthesizable and parametrizable, using a low number of resources, in order to be portable for low-cost FPGA families. The methodology and PWM optimizations are tested on a Zynq-7000 device from Xilinx; however, they can be adapted to any other FPGA.
Thematic Areas: Signal processing Physics, applied Hardware and architecture Engineering, electrical & electronic Engenharias iv Electrical and electronic engineering Control and systems engineering Computer science, information systems Computer networks and communications
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: juandavid.espitia@estudiants.urv.cat enric.vidal@urv.cat enrique.canto@urv.cat
Author identifier: 0000-0002-6016-4096 0000-0002-5674-4119
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/2079-9292/11/3/447
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Electronics. 11 (3):
APA: Espitia Castillo JD; Cantó Navarro E; Vidal-Idiarte E (2022). Design and Implementation of Scalable and Parametrizable Analog-to-Digital Converter on FPGA. Electronics, 11(3), -. DOI: 10.3390/electronics11030447
Article's DOI: 10.3390/electronics11030447
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications