Multicolor light sensing pixel structure

A photodiode structure ( 300 ) includes a first plurality of co-located light band detectors that generate analog detector signals, a first multiplexing circuit ( 440 ) coupled to the first plurality of analog detector signals, which sequentially generates each of the first plurality of analog detector signals at a first multiplexed output ( 444 ), a second multiplexing circuit ( 445 ) coupled to a first plurality of reference signals, which sequentially generates at a second multiplexed output ( 449 ) each of the first plurality of reference signals in synchronism with the first multiplexed output ( 444 ); and a single digital pixel sensor circuit ( 315 ) having inputs coupled to the first and second multiplexed outputs, which sequentially generates a series of digital outputs based on the first and second multiplexed outputs ( 444. 449 ).