https://community.nxp.com/t5/S32K/Need-information-regarding-MCU/m-p/1295528#M11183 <P>what is the operating voltage of the input ADC pin ..0-3.3 volt or 0-5 volt?</P> Mon, 21 Jun 2021 16:01:24 GMT pratayay123 2021-06-21T16:01:24Z https://community.nxp.com/t5/S32K/Need-information-regarding-MCU/m-p/1295528#M11183 <P>what is the operating voltage of the input ADC pin ..0-3.3 volt or 0-5 volt?</P> Mon, 21 Jun 2021 16:01:24 GMT https://community.nxp.com/t5/S32K/Need-information-regarding-MCU/m-p/1295528#M11183 pratayay123 2021-06-21T16:01:24Z https://community.nxp.com/t5/S32K/Need-information-regarding-MCU/m-p/1295634#M11184 <P>Hi,</P> <P>you did not specify the MCU, lets assume S32K144.<BR />ADC input should be between VREFL and VREFH. Recommended condition is to have VDD=VDDA=VREFH. Anyway&nbsp;<SPAN>VDDA and VDD must be shorted on PCB, but VREFH can be connected to another source. And t</SPAN><SPAN>here is a restriction, VREFH should be equal or less than VDDA + 0.1V and VDD + 0.1V.</SPAN></P> <P><SPAN>BR, Petr</SPAN></P> Mon, 21 Jun 2021 20:25:01 GMT https://community.nxp.com/t5/S32K/Need-information-regarding-MCU/m-p/1295634#M11184 PetrS 2021-06-21T20:25:01Z