Good idea. I'll post any results from that avenue. Thanks. Sutton --- In lpc2000@yahoogroups.com, Tom Walsh <tom@...> wrote: > > Sutton Mehaffey wrote: > > >Tom, > > > >Since Philips isn't responding / hasn't responded to my ADC leakage > >question, as you said would probably happen, is it safe to say the > >leakage at the AD0 channels is probably 4ua max? If so, I may put in > >extra circuitry to handle to slop in measuring battery voltage, or I > >may just add another ADC to my board. I had an ADC on an 8051 project > >and it worked great. I just thought that an onboard ADC would > >eliminate extra parts. Maybe not... > > > > > > > I really couldn't say, the spec sheet just is that vague. My board is > only measuring the voltage drop across a 3.3K resistor. They are being > used for EOL Burg (security) Zones. > > The only thing I would suggest is to get in contact with the Field Rep > for Philips and put the question to them. They have to get you an > answer of some kind, that is their job to support engineers designing > with the hardware. > > TomW > > > > -- > Tom Walsh - WN3L - Embedded Systems Consultant > http://openhardware.net, http://cyberiansoftware.com > "Windows? No thanks, I have work to do..." > ---------------------------------------------------- >
Message
Re: ADC leakage current followup
2006-03-08 by Sutton Mehaffey
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