Re: [CAD_CAM_EDM_DRO] Differential to TTL

roboticscnc wrote:

> Hi Group,
> I have a differential encoder ( MPG ) that I need to convert to single
> ended. I'm using the 0v and A, but the high is only 3.25 volts. I seem
> to remember that you can use a resistor between A & -A but not sure
> how to connect the rest or the circuit. I would prefer not to use
> another IC if possible. Maybe a coupling capacitor ?

You may be able to put two resistors of about 1 K Ohm between A
and +5V and B and +5V and get a higher output for the "1" state.
If that doesn't work, then you will need a differential
receiver. The 26LS32 will work.

Putting a resistor between A and A- will lower the voltage
output of each half of the differential driver.

Jon