ADC10832 Datasheet | National Semiconductor

ADC10831 ADC10832 ADC10834 ADC10838 10-Bit Plus Sign Serial I O A D Converters with MUX Sample Hold and Reference December 1994 ADC10831 ADC10832 ADC10834 ADC10838 10-Bit Plus Sign Serial I O A D Converters with MUX Sample Hold and Reference General Description This series of CMOS 10-bit plus sign successive approximation A D converters Features versatile analog input multiplexers sample hold and a 2 5V band-gap reference The 1 2 4 or 8-channel multiplexers can be software configured for single-ended or differential mode of operation An input sample hold is implemented by a capacitive reference ladder and sampled-data parator This allows the analog input to vary during the A D conversion cycle In the differential mode valid outputs are obtained even when the negative inputs are greater than the positive because of the 10-bit plus sign output data format The serial I O is configured to ply with the NSC MICROWIRETM serial data exchange standard for easy interface to the COPSTM and HPCTM families of controllers and can easily interface with standard shift registers and microprocessors Features Y Y Y Y Y Y Y b 5V to a 5V analog voltage range with g 5V supplies Serial I O (MICROWIRE patible) 1 2 4 or 8-channel differential or single-ended multiplexer Software or hardware power down Analog input sample hold function Ratiometric or Absolute voltage referencing No zero or full scale adjustment required No missing codes over temperature TTL MOS input output patible Standard DIP and SO packages Key Specifications Applications Medical instruments Remote instrumentation Test equipment Resolution Dual supply Power dissipation In power down mode Conversion time Sampling rate Band-gap reference 10 bits plus sign g 5V 59 m W (Max) 33 m W 5 ms (Max) 74 k Hz (Max) 2 5V g 2% (Max) ADC10838 Simplified Block Diagram TL H 11391 - 1 COPSTM HPCTM and MICROWIRETM are trademarks of National Semiconductor Corporation C1995 National...