Part Number: ADC3441 ADC使用直流耦合,输入直流电压时,相邻通道有串扰(A通道与B通道干扰,C通道与D通道干扰)。A通道输入一个稳定的直流电压约1V,ADC读取到的值会随B通道输入电压变化有而变化,用示波器测ADC A通道输入管脚处电压也观察到随B通道电压变化有最多一百多mV的电压变化。用网络分析仪测通道的交流隔离度有80db以上。
Hello, sorry to reply you late.
About the THD+N of DAC9881, we tested EVM board and uses a REF5040 and a OPA350 to buffer the reference input. In both cases, the best THD+N that we were able to get is about -80dB THD+N.
In addition, for better THD+N performance…
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