ADC10838 Datasheet | National Semiconductor

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 Semiconductor Corporation TL H 11391 RRD-B30M75 Printed in U S A Connection Diagrams for Dual-In-Line and SO Packages TL H 11391- 2 Top View See NS Package Number N16E or M16B Top View See NS Package Number N20A or M20B TL H 11391 - 4 TL H 11391- 3 Top View See NS...