A power efficient and reduced electromagnetic interference (EMI) emissions transmitter for unshielded twisted pair (UTP) data communication applications. Transmit data is converted to a current-mode analog waveform by a digital-to-analog converter (DAC). A discrete-time analog filter is integrated with the DAC line driver to provide additional EMI emissions suppression. A multiplicity of output cells produce an output signal that is responsive to a plurality of digitized input data samples. A timing circuit generates timing signals for dividing each digitized input data sample into a first time segment and a second time segment. A control logic connected to each output cell generates control signals to drive each output cell to produce a portion of the output signal for the first time segment and the full output signal for the second time segment.