I would like to add ADC functionality to a TI C6748 dev board. I need 16bit precision, but relatively low sample rate(~5K).
Not finding any suitable daughter ADC card, I am considering the possibility of making use of the on board stereo codec TLV320AIC3106. I notice its analog input voltage range is quite limited (-0.3V ~ 0.3V). But my input voltage range is 0~5V.
Do I just need to scale the signal amplitude such that it falls into [~0.3V ~ 0.3V] range? Any other implications that using an audio codec as a general purpose ADC?