Architecture for dynamic range extension of analogue-to-digital conversion

This paper presents a new technique to extend the dynamic range of the signal conversion from the analogue domain to the digital domain. It is based in a new technique to split the incoming analogue signal into two portions and then convert it to the digital domain using for that two parallel analogue-to-digital converters, ADC, and afterwards reconstruct the signal in the digital domain. The proposed architecture will be explained giving more emphasis on the analogue signal splitter. Then, this architecture will be validated through several simulations. We will demonstrate an improvement of around 6 dB in the dynamic range for different signal excitations, in which are included one-tone, two-tones and multisine signals.