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TI的官网上有一些列的介绍SAR ADC的设计注意事项。你可以参考一下 e2e.ti.com/.../sar-adc-pcb-layout-the-reference-path
SAR ADC PCB Layout
Input considerations for SAR ADCs
Performance comparison between SAR ADC input types – Part 1
ENOB or effective resolution?
How to optimize PCB layout
Do I always need an amplifier to drive my SAR ADC?