A single power supply can be used for a differential opamp provided that the input potentials allow the input transistors to be correctly biased. In the case of AC waveforms that can be capacitively coupled to the input, a potential voltage divider can be used for biasing.Originally posted by sachin_dukra@Mar 9 2006, 01:48 PM
why do we use dual power supply for differential amplifier and why not single?
why don't we use voltage divide bias for didderential amplifier?
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