ADC10732 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 MICROWIRE™ serial data exchange standard for easy interface to the COPS™ and HPC™ families of controllers, and can easily interface with standard shift registers and microprocessors. n n n n n n n 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/CMOS input/output patible Standard DIP and SO packages Key Specifications n n n n n n n Resolution Single supply Power dissipation In powerdown mode Conversion time Sampling rate Band-gap reference 10 bits plus sign 5V 37 m W (Max) 18 µW 5µs (Max) 74 k Hz (Max) 2.5V ± 2% (Max) Features n 0V to 5V analog input range with single 5V power supply n Serial I/O (MICROWIRE patible) n 1-, 2-, 4-, or 8-channel differential or single-ended multiplexer Applications n Medical instruments n Portable and remote instrumentation n Test equipment ADC10738 Simplified Block Diagram DS011390-1 COPS™, HPC™ and MICROWIRE™ are trademarks of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS011390 .national. Connection Diagrams DS011390-2 Top View See NS Package Number M16B DS011390-4 Top View See NS Package Number M20B DS011390-3 Top View See NS Package Number M20B DS011390-5 Top View See NS Package...