Users are facing more and more difficulties in limiting the signal chain noise, like in implementing filters, to take advantage of high performance ADCs without limiting the ADCs’ capabilities.
One article discusses the design challenges and considerations associated with implementing analog and digital filters into the ADC signal chain to achieve optimum performance. The data acquisition signal chain can utilize analog or digital filtering techniques, or even a combination of both. Since precision SAR and Σ-Δ ADCs are commonly sampling within the first Nyquist zone, this article will focus on low-pass filters. It is not the intent to address specific low-pass filter design techniques in this article but rather their application in ADC circuits.
The full article is available in ADI Analog Dialogue.