Hi Chandra, The ADS8688S would be a fine choice for your application. The ADS8686S is a 16 channel, 16-bit device which may also be of interest to you. These are both successive approximation register (SAR) converters. We also have delta-sigma converters with resolution up to 24-bits if you can deal with slower acquisition speeds. You can find application notes under the 'Technical documentation' tab in the product folders as well as application schematics under the 'Design and development' tabs - look under Hardware development' for the EVM Users Guide. There are also reference designs like TIDA-01576 which you may find useful.
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