| Autor: |
Zhu, Zhong Ying, Hong, Hui, Li, Shi Liang |
| Zdroj: |
Applied Mechanics and Materials; February 2014, Vol. 513 Issue: 1 p4572-4575, 4p |
| Abstrakt: |
A high speed, low offset fully differential comparator for high-speed analog-to-digital converter which can work at a sampling rate of 8GS/s is presented in this paper. The three-stage pre-amplifiers in the improved comparator structure is proposed to ameliorate its gain. The positive feedback regeneration circuit and the improved output buffer are used to ameliorate the comparator bandwidth. Operating with an input sine signal of 1GHz frequency, the circuit can oversample up to 8GS/s with 5bits of resolution. The simulated offset voltage of the comparator by Monte Carlo at 8GHz clock is 5.09mV. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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