ADC08831

ADC08831/ADC08832 8-Bit Serial I/O CMOS A/D Converters with Multiplexer and Sample/Hold Function September 1999 ADC08831/ADC08832 8-Bit Serial I/O CMOS A/D Converters with Multiplexer and Sample/Hold Function General Description The ADC08831/ADC08832 are 8-bit successive approximation Analog to Digital converters with 3-wire serial interfaces and a configurable input multiplexer for 2 channels. The serial I/O will interface to COPS™family of micro-controllers, PLD’s, microprocessors, DSP’s, or shift registers. The serial I/O is configured to comply with the NSC MICROWIRE™ serial data exchange standard. To minimize total power consumption, the ADC08831/ADC08832 automatically go into low power mode whenever they are not performing conversions. 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 combinations of single-ended, differential, or pseudo-differential modes. The voltage reference input can be adjusted to allow encoding of small analog voltage spans to the full 8-bits of resolution. n Remote sensing in noisy environments n Instrumentation n Embedded Systems Features n n n n n n n 3-wire serial digital data link requires few I/O pins Analog input track/hold function 2-channel input multiplexer option with address logic Analog input voltage range from GND to VCC No zero or full scale adjustment required TTL/CMOS input/output compatible Superior pin comp...