Oct 3, 2002 #1 K KSA Junior Member level 2 Joined May 18, 2001 Messages 21 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 73 Hi, I have TTL logic output level +5v and 0v I want to convert it to +5v and -5v. How to ? KSA
Oct 3, 2002 #2 P penrico Full Member level 5 Joined Aug 28, 2001 Messages 285 Helped 27 Reputation 54 Reaction score 8 Trophy points 1,298 Location Argentina Activity points 2,393 Putting a MAX232 you will convert TTL levels (0-5v) to RS232 levels (-12/12V), so just a resistor divider will attenuate the voltages to your needs..
Putting a MAX232 you will convert TTL levels (0-5v) to RS232 levels (-12/12V), so just a resistor divider will attenuate the voltages to your needs..
Oct 3, 2002 #3 electro Junior Member level 3 Joined Apr 12, 2001 Messages 27 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location Turkey Activity points 173 Hi, Search for ICL7660 IC It makes this conversion. Best regards
Jan 21, 2003 #4 B bunalmis Full Member level 5 Joined Jan 3, 2003 Messages 276 Helped 19 Reputation 38 Reaction score 13 Trophy points 1,298 Location Ireland Activity points 2,168 You can use this circuit. Dont forget this is also inverter.
Jan 21, 2003 #5 A alledauser Member level 1 Joined May 16, 2001 Messages 40 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 287 I think the solution depends on the speed you require. regards
Jan 21, 2003 #6 papyaki Advanced Member level 2 Joined Apr 13, 2002 Messages 537 Helped 38 Reputation 76 Reaction score 19 Trophy points 1,298 Location France Activity points 5,346 And why not use an MC1488 (rs232 driver) with +5V and -5V power supply ?