EmitterCoupledLogic
Emitter-Coupled Logic (ECL) is a type of digital circuit logic family that uses bipolar junction transistors (BJTs) as the active devices. It is known for its high-speed operation and low power dissipation, making it suitable for applications requiring fast switching times and low noise margins. ECL circuits operate with a differential signal, where the logic levels are represented by the difference in voltage between two complementary signals. This differential signaling helps to minimize the effects of noise and interference, improving the overall performance and reliability of the circuit.
The basic building block of ECL is the differential pair, which consists of two BJTs connected in
ECL circuits are commonly used in high-speed applications such as telecommunications, data communications, and high-performance computing.
In summary, Emitter-Coupled Logic is a high-speed digital circuit logic family that uses bipolar junction transistors