A common practice to increase the number of ADC channels is to use an "Analog Multiplexer" (MUX). Use a few GPIO bits to control the addressing. You can provide a single point buffer to support the 0-5 to 0-1.8V scaling. Cheers
On Monday, September 1, 2014 9:47:24 AM UTC-4, [email protected] wrote: > > I would like to use the BeagleBone to acquire 16 analog signals. The > transducers will be a mix of resistive temperature and current sensors. > The temperature sensors will produce a signal between 0~5V and the current > transformers will output of 0~0.333V. The BeagleBone Black is limited to 7 > analog inputs. I was not able to find a cape that offers 16 analog inputs. > > > 1. Does a BeagleBone Black cape exist that will multiplex and signal > condition 16 analog signals (0~5V). > 2. If this does not exist, can one of the BeagleBone experts recommend an > alternative. > > Thanks in advance. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
