A multi-channel electric stimulator for a neural implant switches direct current according to nerve stimulation channels of different sequences of nerve stimulation. A direct current generator supplies direct current in response to nerve stimulation in the sequence of stimulation by controlling a nerve stimulation channel next in the sequence to stand by, with an electric current of the next nerve stimulation channel being modified into a direct current level, when nerve stimulation is performed using a nerve stimulation channel earlier in the sequence of stimulation. A biphasic current pulse generator generates a biphasic current pulse by switching the nerve stimulation channel-specific direct current supplied thereto. A controller controls a switching operation of the biphasic current pulse generator depending on a sequence of stimulation set according to the nerve stimulation channels. DAC switching noise induced by the occurrence of a biphasic current pulse is not transferred to the circuit.
