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A 12Bit 80MHz CMOS D/A Converter with active load inverter switch driver  

Nam, Tae-Kyu (R&D Center, Silicon Works Co., Ltd.)
Seo, Sung-Uk (Dept. of Electronic Engineering, Inha University)
Shin, Sun-Hwa (Dept. of Electronic Engineering, Inha University)
Joo, Chan-Yang (Dept. of Electronic Engineering, Inha University)
Kim, Soo-Jae (Dept. of Electronic Engineering, Inha University)
Lee, Sang-Min (Dept. of Electronic Engineering, Inha University)
Yoon, Kwang-S. (Dept. of Electronic Engineering, Inha University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.44, no.8, 2007 , pp. 38-44 More about this Journal
Abstract
This paper describes a 12 bit 80MHz CMOS D/A converter for wireless transceiver. Proposed circuit in the paper employes segmented structure which consists of four stage 3bit thermometer decoders. Proposed D/A converter is manufactured 0.35um CMOS n-well digital standard process and measurement results show a ${\pm}1.36SB/{\pm}0.62LSB$ of INL/DNL and $46pV{\cdot}s$ of glitch energy. SNR and SFDR are measured to be 58.5dB and 64.97dB @ Fs=80MHz and Fin=19MHz with a total power consumption of 99mW. Such results proved that our work has low power consumption, high linearity, low glitch and improved dynamic performance. Therefore, our work can be appled to various high speed and high performance circuits.
Keywords
D/A converter; wireless transceiver; active load inverter switch driver;
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