Flash PIC with 12 bit ADC

[Steve_88]

Thanks for the tips. Any suggestions on using an amplifier as a low pass filter and to provide a low impedence output to the AtoD input?

I've been looking on the web etc, but is quite daunting.

Thanks,
Steve

[Charles Linquis]

Op amps are really quite simple. You should probably pick one with rail-to-rail input and output and low offset voltage. If unity gain is what you want, just hook the output to the (-) input and feed your signal into the (+) input. Most of the data sheets will have examples

[SteveB]

TI put out "Op Amps For Everyone.pdf" and "Handbook of Operational Amplifier Applications," both of which may help as well.

SteveB

[Steve_88]

Thanks for the links, sure is alot of information there. I found a microchip appnote AN699 which is helpful. I downloaded the filterlab program from microchip.

I'm shooting for single pole low pass filter which will beef up the output current to the AtoD of the pic.

Looks like I'm on my way, thanks very much