Super-Simple Coax to Twisted-Pair Adapter

Launching a baseband camera signal into twisted pair is a relatively simple matter of building a differential driver such as shown in this circuit. In this realization one LT6652 is used to create a gain of +1 and another is used to make a gain of –1. Each output is series terminated in half the line impedance to provide a balanced drive condition. An additional virtue of using the LT6552 in this application is that the incoming unbalanced signal (from a camera for example) is sensed differentially, thereby rejecting any ground noise and preventing ground loops via the coax shield.