Full-Duplex Data Transmission

The TH4062 is a dual video amplifier with a 3-dB bandwidth of 180 MHz. This video opamp also features low noise, a high output current of ±100 mA, a very high slew rate, extremely low phase and gain errors (0.02 ° and 0.02 %) and outstandingly low crosstalk (–110 dB). These properties make the TH4062 an excellent choice for use in a high-speed data link. The full-duplex capability supports bidirectional communications (without a changeover switch) for distances of up to 300 m using a coaxial or twisted-pair cable.The circuit diagram shows that all tha is needed is four opamps (housed in two ICs), a few resistors and some capacitors to decouple the supply voltage.