ADC08831  Product Folder

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.

• 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 V_CC
• No zero or full scale adjustment required
• TTL/CMOS input/output compatible
• Superior pin compatible replacement for ADC0831/2

• Resolution: 8 bits
• Conversion time (f_C = 2 MHz): 4µs (max)
• Power dissipation: 8.5mW (typ)
• Low power mode: 3.0mW (typ)
• Single supply: 5V_DC
• Total unadjusted error: ±1LSB
• No missing codes over temperature

• Digitizing sensors and waveforms
• Process control monitoring
• Remote sensing in noisy environments
• Instrumentation
• Embedded Systems