ADC08038 Datasheet | National Semiconductor

Description The ADC08031/ADC08032/ADC08034/ADC08038 are 8-bit successive approximation A/D converters with serial I/O and configurable input multiplexers with up to 8 channels. The serial I/O is configured to ply with the NSC MICROWIRE™ serial data exchange standard for easy interface to the COPS™ family of controllers, and can easily interface with standard shift registers or microprocessors. The ADC08034 and ADC08038 provide a 2.6V band-gap derived reference. For devices offering guaranteed voltage reference performance over temperature see ADC08131, ADC08134 and ADC08138. A track/hold function allows the analog voltage at the positive input to vary during the actual A/D conversion. The analog inputs can be configured to operate in various binations of single-ended, differential, or pseudo-differential modes. In addition, input voltage spans as small as 1V can be acmodated. Applications n Digitizing automotive sensors n Process control monitoring n Remote sensing in noisy environments n Instrumentation n Test systems n Embedded diagnostics Features n Serial digital data link requires few I/O pins n Analog input track/hold function n 2-, 4-, or 8-channel input multiplexer options with address logic n 0V to 5V analog input range with single 5V power supply n No zero or full scale adjustment required n TTL/CMOS input/output patible n On chip 2.6V band-gap reference n 0.3" standard width 8-, 14-, or 20-pin DIP package n 14-, 20-pin small-outline packages Key Specifications n Resolution 8 bits n Conversion time (f C= 1 MHz) 8µs (max) n Power dissipation 20m W (max) n Single supply n Total unadjusted error 5VDC (±5%) ±1⁄2 LSB and ±1LSB n No missing codes over temperature Ordering Information Industrial (- 40˚C ≤ TA ≤ +85˚C) ADC08031CIN ADC08031CIWM, ADC08034CIWM ADC08038CIWM Package N08E M14B M20B TRI-STATE® is a registered trademark of National Semiconductor Corporation. COPS™ microcontrollers and MICROWIRE™ are trademarks of National Semiconductor...