ICL8068

ICL8052/ICL7104, ICL8068/ICL7104 August 1997 14-Bit/16-Bit, MicroprocessorCompatible, 2-Chip, A/D Converter Description The ICL7104, combined with the ICL8052 or ICL8068, forms a member of Intersil’ high performance A/D converter family. The ICL7104-16, performs the analog switching and digital function for a 16-bit binary A/D converter, with full three-state output, UART handshake capability, and other outputs for easy interfacing. The ICL7014-14 is a 14-bit version. The analog section, as with all Intersil’ integrating converters, provides fully precise Auto-Zero, Auto-Polarity (including ±0 null indication), single reference operation, very high input impedance, true input integration over a constant period for maximum EMI rejection, fully rationmetric operation, over-range indication, and a medium quality built-in reference. The chip pair also offers optional input buffer gain for high sensitivity applications, a built-in clock oscillator, and output signals for providing an external Auto-Zero capability in preconditioning circuitry, synchronizing external multiplexers, etc. Features 16-Bit/14-Bit Binary Three-State Latched Outputs Plus Polarity and Overrange Ideally Suited for Interface to UARTs and Microprocessors Conversion on Demand or Continuously Guaranteed Zero Reading for 0V Input True Polarity at Zero Count for Precise Null Detection Single Reference Voltage for True Ratiometric Operation Onboard Clock and Reference Auto-Zero, Auto-Polarity Ac...