ADC0803LCN devices are CMOS 8-bit successive approximation converters (analog to digital converters) (ADC) that use a differential potentiometric ladder, DIP-20 Package. These are brand new NOS chips. Operates With Any 8-Bit µP Processors or as a Stand-Alone Device and has a ±1/2 LSB accuracy. The ADC0803 can replace any of the following ADC0803LCN, ADC0803LCD, ADC0804LCN, ADC0804LCJ, ADC0802LCN and others. These are used on many arcade game PCBs.