https://community.nxp.com/t5/i-MX-Processors/i-MX6UL-ADC-VrefH-input-current/m-p/1212371#M167822 <P>The ADC_VREFH pin behaves as a regular FET gate input, so, its leakage current is negligible.</P> <P>Best Regards,<BR />Artur</P> Fri, 15 Jan 2021 11:55:42 GMT art 2021-01-15T11:55:42Z https://community.nxp.com/t5/i-MX-Processors/i-MX6UL-ADC-VrefH-input-current/m-p/1209497#M167537 <P>Hi!</P><P>We are designing an application with the i.MX6UL's internal ADC in use. An external shut voltage reference is connected to the SoC's VrefH input.</P><P>However, the datasheet of the i.MX6UL does not specify the input current on pin VrefH. Thus, I cannot calculate an appropriate bias current for the shunt reference. Is this value known?</P><P>Best regards,<BR />Johannes</P> Mon, 11 Jan 2021 08:20:22 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX6UL-ADC-VrefH-input-current/m-p/1209497#M167537 johannesdev 2021-01-11T08:20:22Z https://community.nxp.com/t5/i-MX-Processors/i-MX6UL-ADC-VrefH-input-current/m-p/1212371#M167822 <P>The ADC_VREFH pin behaves as a regular FET gate input, so, its leakage current is negligible.</P> <P>Best Regards,<BR />Artur</P> Fri, 15 Jan 2021 11:55:42 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX6UL-ADC-VrefH-input-current/m-p/1212371#M167822 art 2021-01-15T11:55:42Z