"Richard Ferryman" <richardferryman@btinternet.com> schreef in bericht
news:Ra2dnboeHvphc_TNnZ2dnUVZ7qadnZ2d@bt.com...
>I have a device with 8 control inputs with logic levels of 0V and -5V at
>about 50uA. I considered running something like a CMOS octal inverter
>across +5V and -5V rails with open collector outputs and a resistor to 0V
>but I have not found a suitable IC for this yet.
> An alternative would be a standard TTL octal inverter requiring a 5V
> supply and strapping...
Re: Level convert TTL to -5V logic (0V / -5V levels at <50uA)?
news:Ra2dnboeHvphc_TNnZ2dnUVZ7qadnZ2d@bt.com...
>I have a device with 8 control inputs with logic levels of 0V and -5V at
>about 50uA. I considered running something like a CMOS octal inverter
>across +5V and -5V rails with open collector outputs and a resistor to 0V
>but I have not found a suitable IC for this yet.
> An alternative would be a standard TTL octal inverter requiring a 5V
> supply and strapping...
Re: Level convert TTL to -5V logic (0V / -5V levels at <50uA)?
