Which of the following logic family is well suited for high speed operation ?
ECL logic family is well suited for high speed operation.
Emitter-coupled logic is a high-speed integrated circuit bipolar transistor logic family. A variation of ECL in which all signal paths and gate inputs are differential is known as differential current switch logic.
A logic family of monolithic digital integrated circuit devices is a group of electronic logic gates constructed using one of several different designs, usually with compatible logic levels and power supply characteristics within a family.