ADC08031  Product Folder

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 comply 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 combinations of single-ended, differential, or pseudo-differential modes. In addition, input voltage spans as small as 1V can be accommodated.

• Serial digital data link requires few I/O pins
• Analog input track/hold function
• 2-, 4-, or 8-channel input multiplexer options with address logic
• 0V to 5V analog input range with single 5V power supply
• No zero or full scale adjustment required
• TTL/CMOS input/output compatible
• On chip 2.6V band-gap reference
• 0.3[Prime] standard width 8-, 14-, or 20-pin DIP package
• 14-, 20-pin small-outline packages

• Resolution: 8 bits
• Conversion time (f_C = 1 MHz): 8µs (max)
• Power dissipation: 20mW (max)
• Single supply: 5V_DC (±5%)
• Total unadjusted error: ±½ LSB and ±1LSB
• No missing codes over temperature

• Digitizing automotive sensors
• Process control monitoring
• Remote sensing in noisy environments
• Instrumentation
• Test systems
• Embedded diagnostics