Consider a differential sinusoidal signal driving a perfect bipolar analog-to-digital converter (ADC), with a uniform mid-tread quantizer.

The differential signal at the input of the ADC, , covers the complete input dynamic range of the ADC, from to .

The ADC input filtering only removes unwanted high-frequency noise, it does not affect the input signal.

At the output of the ADC, the signal to quantization noise ratio is .

Admiting the quantization noise power of , determine the quantization step ().