High efficiency output driver for reducing power consumption and transmitter having the same

摘要

A high efficiency output driver capable of reducing power consumption and a transmitter including the output driver are disclosed. The output driver includes: a differential amplifier including a tail; A switch unit for supplying a first voltage to an output terminal of the differential amplifying unit based on an input signal of the differential amplifying unit; And an output unit for outputting an output signal of the differential amplification unit in response to a bias signal. According to the present invention, the power consumption of the output driver can be reduced and the transmission efficiency can be increased.