Driving circuit and data transmitting method

摘要

A driving circuit includes channels, a positive converting unit, a negative converting unit, an input switch, and an operational amplifier. A first digital data and a second digital data are alternatively transmitted in a first channel and a second channel. The positive converting unit and negative converting unit are respectively disposed in first channel and second channel and convert first digital data and second digital data into a positive analog data and a negative analog data. A first input terminal and a second input terminal of operational amplifier are respectively in first channel and second channel. After input switch respectively transmits positive analog data and negative analog data to first input terminal and second input terminal or to second input terminal and first input terminal, positive analog data and negative analog data are transmitted in a channel of the channels corresponding to entering operational amplifier.

主权项

1. A driving circuit, comprising:
a plurality of channels, comprising a first channel and a second channel, wherein a first digital data and a second digital data are alternatively transmitted in the first channel and the second channel; a positive converting unit, disposed in the first channel, for converting the first digital data into a positive analog data; a negative converting unit, disposed in the second channel, for converting the second digital data into a negative analog data; an input switch, coupled to the positive converting unit and the negative converting unit; and an operational amplifying module, coupled to the input switch, wherein a first input terminal and a second input terminal of the operational amplifying module are disposed in the first channel and the second channel respectively; wherein the input switch transmits the positive analog data and the negative analog data to the first input terminal and the second input terminal respectively or to the second input terminal and the first input terminal respectively accordingly to a switch control signal, the positive analog data and the negative analog data are transmitted in a channel of the plurality of channels corresponding to entering the operational amplifying module.