Gray-code input DAC architecture for clean signal generation
| Autor: | Dan Yao, Yuki Ozawa, Ryoji Shiota, Nobukazu Tsukiji, Rino Takahashi, Yifei Sun, Haruo Kobayashi, Richen Jiang, Gopal Adhikari |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Signal processing Signal generator Computer science Spice Binary number Hardware_PERFORMANCEANDRELIABILITY Signal Glitch Gray code 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Hardware_INTEGRATEDCIRCUITS Electronic engineering 030217 neurology & neurosurgery Hardware_LOGICDESIGN Electronic circuit |
| Zdroj: | ISPACS |
| DOI: | 10.1109/ispacs.2017.8266561 |
| Popis: | This paper describes digital-to-analog converter (DAC) architectures for clean signal generation used in such as arbitrary waveform generators (AWGs) as well as graphic displays; the clean signal is applied to analog/mixed-signal/RF devices for testing. We propose here three types of Gray-code input DAC architectures (current-steering, charge-mode and voltage-mode DACs) for glitch reduction. They use current/voltage switch matrixes realized by double-pole double-throw (dpdt) switches. For a binary-weighted DAC, glitches which are trigged by switching during conversion in a DAC system are serious problems in some applications. Gray code (reflected binary code) is a binary numeral system where two successive values differ in only one bit and conversion between binary-code and Gray-code can be easily realized by XOR circuits. SPICE simulation has been performed to prove their feasibility and ability of glitch reduction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|