Forum Post: RE: ADS1115-Q1: Question about the on resistance Ron of the MUX at the input of the ADC

Hi Manuel, The input impedance for the analog input pins is shown in section 6.5 of the data sheet for the different FSR settings: The following post helps explain the common-mode and differential components of the input impedance: (+) ADS1115: Input impedance of ADS1115 - Data converters forum - Data converters - TI E2E support forums This can help you determine what the input bias current to the analog input pins of the ADC would be. Best Regards, Angel