A current comparator includes an input node for receiving an input current, an output node, a first wide swing current mirror having an input coupled to the input node of the current comparator, a power node for receiving a first power supply voltage such as ground, and an output coupled to the output node of the current comparator, and a second wide swing current mirror having an input coupled to the input node of the current comparator, a power node for receiving a second power supply voltage such as VDD, and an output coupled to the output node of the current comparator. The output node can provide either a voltage or current output signal.

 
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