ADC pins permanently grounded in LPC2368

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by Ramana on Thu Nov 27 23:29:53 MST 2014
       I'm using 6 ADC channels of lpc2368 to measure currents in my project. The issue is, I have been facing regular failures of ADC channels over long run. After some days at site, the ADC readings are becomes 0, when I debug the hardware, i have observed that, some of the ADC input pins of LPC2368 are showing short to Gnd of Controller.
      The circuit block diagram is in the attachment. It has been a big problem to me, need to replace the controller every time when the failure is observed. Please suggest me how can I prevent these failures.

Every suggestion is appreciable.

Thanks in advance