Differential Signaling

Differential signaling is a method used in electronic communication where two complementary signals are sent simultaneously over a pair of wires. One wire carries the original signal, while the other carries an inverted version. The receiver compares the two signals, detecting the difference between them. This approach helps reduce noise and interference because external disturbances tend to affect both wires equally, canceling out the noise when differences are measured. Differential signaling is widely used in high-speed data transmission, such as Ethernet and USB, ensuring data integrity and minimizing errors in noisy environments.