The ADS7809 is part of a family of capacitive redistributionSAR A/D converters that feature a serial output and a tag pinfor cascading multiple converters. Other members of thisfamily include the ADS7806, ADS7807, ADS7808,ADS7824, and ADS7825. Note that the even numberedconverters are 12-bit converters and the odd numberedconverters are 16-bit converters.