Multipath reference voltage multiplexing circuit

The invention provides a multi-path reference voltage multiplexing circuit which comprises a voltage and current conversion module, a current single-path to multi-path conversion module and a current to voltage conversion module, and the input end of the voltage and current conversion module is connected with the output end of a reference voltage source. The output end of the voltage and current conversion module is connected with the input end of the current single-path-to-multi-path module, the output end of the current single-path-to-multi-path module is connected with the input end of the current-to-voltage module, and the output end of the current-to-voltage module is connected with the input end of each branch circuit; compared with the prior art, the reference voltage source has the advantages that voltage signals output by the reference voltage source can be converted into current signals through the operational amplifier and the field-effect tube, then the current signals are subjected to multi-path