case about nRF54L10 VREF0.9V

[peter.min]

Hi,

The VREF0.9V used by the internal ADC of 54L10 has a tolerance of how much and what is its accuracy range?

Best regards.

Peter.Min

[SwRa]

Hi Peter,

The accuracy of VREF doesn't need to be considered separately as the inaccuracy from VREF is included in the ADC Gain error. Keeping it as close to 0.9v should be sufficient. The external reference voltage should be close to the internal reference voltage. Preferably no more than 5% deviation from the internal reference voltage, VREF. Refer: https://docs.nordicsemi.com/r/bundle/ps_nrf54l15/page/saadc.html-padc_reference 

Best Regards,

Swathy