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应用于脉冲式超宽带接收机的低功耗欠采样电路
资料介绍
给出了一款应用于脉冲式超宽带（IR—UWB）接收机的低功耗采样电路设计方案。该采样电路使用0-13μmCMOS工艺，采样速率达到了4．224GS／s。在设计中，应用了等效采样技术来提高采样电路的整体采样速率。同时使用了失调校准技术来消除各通道本身以及各通道之间的失调电压，该失调校准技术不需要前置放大器，不消耗静态电流。该采样电路只需要单相位时钟，而一般传统的采样电路需要差分时钟。该采样电路能够在4．224GS／s高采样速率时依然保持高的分辨率（1mV），突破了传统采样电路速度与精度之间不可调和的矛盾。在1．2V电源电压下，该采样电路功耗2．4mW，有效面积为0．4mm2。
This paper presents a low-power 4. 224 GS/s sampler in 0.13μm CMOS for IR- UWB receiver. In this design,the equivalent sampling technique is introduced to multiply the sampling rate and the offset cancellation technique is applied to achieve high resolution. The off- set cancellation technique does not require any pre-amplifier and quiescent current. Moreover, the comparator core in the sampler only requires one phase clock while an conventional comparator needs two phase clocks. The total power of the sampler with active area of 0.4 mmz is only 2.4 mW under supply voltage of 1.2 V.
部分文件列表
| 文件名 | 大小 |
| 应用于脉冲式超宽带接收机的低功耗欠采样电路.pdf | 1000K |
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