Any suggestions or part numbers are much appreciated! Please, if it's not to difficult, let me know which op-amps you've used.
I've worked with the LM324 in the past for another project so I'm relatively comfortable with this one. Thanks again all! On Tuesday, June 7, 2016 at 1:33:40 AM UTC-7, Chris Green wrote: > > Harvey White <[email protected] <javascript:>> wrote: > > >3. What is the "normal" way of using the BBB analog inputs with 5V > levels? > > > Is it possible - or is there where I would use a level-shifter or > zener > > >diode? > > > > Level shifters are generally digital, and zener diodes don't help all > > that much (and are not really a good idea here). My standard advice > > would be to run the analog voltage through a non-inverting op amp > > configured as a gain stage. You run the op-amp (and have to pick one > > that does rail to rail and also runs from 1.8 volts) from the 1.8 volt > > supply. > > > Yes, that's what I do. There are quite a few very low power op-amps > suitable for running from the 1.8 volt rail on the BBB. If OP is > interested I can look up the device, it's from TI if I remember. > > -- > Chris Green > ยท > > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/a9f1c150-cb9f-448d-bb6c-2951957aac8f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
