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A 4-GHz 8-b ADC system

机译:4 GHz 8-b ADC系统

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摘要

The system described incorporates silicon bipolar, thick-film hybrid, and CMOS process technologies. A sampler chip providing filtered pulses to four analog-to-digital converter chips on one thick-film hybrid can provide 8 b of resolution and a 2-Gsample/s sampling rate. A novel sampling process called sample and filter is used to reduce the bandwidth requirements of post-sampling circuitry. Two thick-film hybrids with interleaved sample timing were used to obtain a 4-Gsample/s sample rate, 2-GHz bandwidth, and eight effective bits at DC. The goals for system functionality, resolution, bandwidth, and noise were all met with the initial prototypes of the chips and the thick-film hybrid.
机译:所描述的系统结合了硅双极,厚膜混合和CMOS工艺技术。将一个滤波后的脉冲提供给一个厚膜混合电路上的四个模数转换器芯片的采样器芯片可以提供8b的分辨率和2Gsample / s的采样率。一种新颖的采样过程称为采样和滤波器,用于减少后采样电路的带宽需求。两个具有交错采样定时的厚膜混合器用于获得4-Gsample / s采样率,2-GHz带宽和DC的八个有效位。系统功能,分辨率,带宽和噪声的目标均通过芯片和厚膜混合动力系统的初始原型得以实现。

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