对于不需要宽带采样(1GHz 至 2GHz 或更高)的应用,使用平衡-不平衡转换器或变压器前端电路为模数转换器 (ADC) 设计窄带 (NB) ...
数据采集和通用测试测量设备中使用的精密信号链必须适应宽广的输入电平范围。信号链可能需要提供高输入阻抗,同时支持增益和衰减,并调整共模电平以确保信号落在ADC的适当输入范围内。 图1中的原理图显示了两级信号调理,它能调整差分双极性±10 V输入 ...
回答读者问题:高速 ADC 中的 1/f昨天后半夜发的是上篇,下午起来发第二篇。 本来是没有想的这么详细的,不过既然提出那就尝试一下这个结论。 1 GS/s、N=16384(T=16.384 µs,Δf≈61 kHz)这类高速短记录里,1/f 噪声对 SNR 基本可以忽略。原因是窗口太短,所有 ...
High-performance A/D converters (ADCs) used in wireless base stations, high-speed data acquisition, test and measurement, medical imaging, and military applications require high-performance ...
Linear Technology Corporation introduces the LTC2387-18, an ultrafast 15Msps, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) with no cycle latency and no pipeline ...
上面两个文章说了系统和基准源,现在来加上实际的参数算一下。(ADS127L01+REF60xx) FSR = 2*VREF # 满量程差分 lsb = FSR / (2**24) vrms ...
Over the past decades, the high-speed analog-to-digital converter (ADC) performance metric that mattered to most has changed, albeit slowly. Primarily as a result of signal acquisition systems’ ever ...
Analyzing ADC Noise Impacts on Wireless System PerformanceBy Brad Brannon, Analog Devices, Incfrom Communication Systems Design It's commonly thought in the RF community that noise generated by an ...