Hi all i have a trapezoidal wave of about 150ns rise n fall times with DC voltage built into it. i want to remove the DC from the signal and buffer it or amplify little bit (say 1.4 or 1.5 gain) without being distorted. i have two such lines with signals 180 deg out of phase. when i feed these signals into xDSL line driver/Buffer LT1794 then one line is distorted very much while the other is affected slightly. then i have to transmit these signals on a twisted pair differential bus.
- How to remove DC from the signal, simply adding a cap does not symmetrically shift the wave about 0V line. (or x-axis).
- Please someone guide me about how to buffer/amplify that trapezoidal signal without being distorted for providing about 400 to 500mA current as a maximum.
- and then how to get connected to the bus to transmit for a short period of time and then be disconnected for the rest of the time. thanks a lot.