JAJSIN4D October 2003 – February 2020 ADS1204
PRODUCTION DATA.
The differential analog input of the ADS1204 is implemented with a switched-capacitor circuit. This circuit implements a second-order modulator stage, which digitizes the analog input signal into a 1-bit output stream. The clock source can be internal as well as external. Different frequencies for this clock allow for a variety of solutions and signal bandwidths. Every analog input signal is continuously sampled by the modulator and compared to a reference voltage that is applied to the REFINx pin. A digital stream, which accurately represents the analog input voltage over time, appears at the output of the corresponding converter.