Technical Journal, Vol. 16 No. 3, 2022.
Preliminary communication
https://doi.org/10.31803/tg-20220405104325
Design of a Single-Core Digital-to-Analog Converter with Ultra-Wideband and Low Power Consumption for CUWB-IR Applications
Seyed Mohammad Hashemifar
orcid.org/0000-0002-9904-557X
; Department of Electrical Engineering, Faculty of Engineering, Ashtian Branch, Islamic Azad University, Ashtian, Iran
Abstract
Data converters are intermediate circuits used to connect between two analog and digital ranges. Data converters are not only used for converting audio into a microphone or speaker, but also for converting audio into a camera or display, transferring information to a computer or digital signal processor. At these times, the need for data converters is not invested in every aspect of life. Digital to analog converters is a leading part of these converters, which are widely used in most audio and video circuits. In this thesis, we have proposed a 4-bit 1GS/s DAC for CUWB-IR usage. To enhance the above performance with superior speed and the need for linearity, every significant block containing the convenient sources, current switches, and deglitcher were designed optimally and a new DAC converter circuit was developed which improves the linearity. The designed DAC was performed using a commercial 130 nm CMOS process. DAC INL/DNL≤0.22LSB features more than high Nyquist bandwidth at extremely low power losses of 0.45 mW. The proposed DAC achieves the best FoMs at the right time for advanced DACs.
Keywords
Cognitive Ultra-Wide Band; CUWB-IR; differential non-linearity; digital-to-analog converter
Hrčak ID:
279402
URI
Publication date:
21.6.2022.
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