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Reducing SNR loss

Posted: 27 Sep 2013     Print Version  Bookmark and Share

Keywords:analogue-to-digital converter  ADC  analogue input  signal-to-noise ratio  SNR 

It is typically a challenge to find an analogue-to-digital converter (ADC) that aligns with the analogue input range, but also has the appropriate number of inputs, the needed size, and the correct sample speed. Especially for system designers working with wide voltage swings, there is a concern that scaling down the input signal to drive an ADC's full-scale range can significantly degrade the signal-to-noise ratio (SNR). This application note discusses what affects this SNR loss, how it can be quantified, and more importantly, how it can be minimised.

View the PDF document for more information.

Originally published by Maxim Integrated Products as "Process High-Voltage Input Levels into a Low-Voltage ADC Without Losing Much SNR".

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