Double-channel operational amplifier circuit
An operational amplifier and dual-channel technology, applied to amplifiers with multiple amplifying elements, etc., can solve problems such as large current consumption and inability to share current
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[0013] The present invention proposes a dual-channel operational amplifier circuit. By making the data of different polarities of a single output node be processed by the same input stage and gain stage, the problem of abnormal display can be avoided, and the dual-channel operation can be achieved by switching the switch. The amplifier circuit operates in the half-voltage operation mode, so the current consumption can be saved.
[0014] Please refer to image 3 , which shows a schematic diagram of a dual-channel operational amplifier circuit according to a preferred embodiment of the present invention. The dual-channel operational amplifier circuit 300 includes a first operational amplifier and a second operational amplifier. The first operational amplifier has a first input stage 312 , a first gain stage 314 and a first output stage 316 . The second operational amplifier has a second input stage 322 , a second gain stage 324 and a second output stage 326 . The dual-channel...
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