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Subject: Re: Little help required........
Date: Thu, 17 Oct 2002 12:04:39 +1300
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
i do HAVE to use op-amps, and I don't have (and can't get) a Maxim MAX232
"Mr_Ree" wrote in message
> you could always use the MAX232 chip. 5v supply & 4 caps and that's it!
> Tx & two Rx channels to play with! That is, unless you HAVE to use
> "Groenewegen" wrote in message
> > Hi, im working on a little project of mine and am a bit stuck. Just
> > wondering if any one could help.
> > I need a circuit which will convert an RS-232 signal into a 0 to 5 volt
> > signal (and its logical inverse)
> > Specifications:
> > 1) Only linear devices (op-amps) are being used
> > 2) I have an analogue input of 12 to +12 volts
> > 3) Output is obviously 0 to 5 volts (inverse as well)
> > 4) I am using a TL 072 device
> > 5) And only one 15 volt power supply
> > 6) Finally I only have one dual op-amp IC to use for all input signal
> > conditioning and this IC has to be used with a single power supply.
> > Thanks for any help :)
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