The ADC08231/ADC08234/ADC08238 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 MICROWIRETM serial data exchange standard for easy interface to the COPSTM family of controllers, and can easily interface with standard shift registers or microprocessors. Designed for high-speed/low-power applications, the devices are capable of a fast 2 ms conversion when used with a 4 MHz clock.
All three devices provide a 2.5V band-gap derived reference with guaranteed performance over temperature. 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.
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High-speed data acquisitionDigitizing automotive sensorsProcess control/monitoringRemote sensing in noisy environmentsDisk drivesPortable instrumentationTest systems
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Serial digital data link requires few I/O pinsAnalog input track/hold function4- or 8-channel input multiplexer options with address logicOn-chip 2.5V band-gap reference (g2% over temperature guaranteed)No zero or full scale adjustment requiredTTL/CMOS input/output compatible0V to 5V analog input range with single 5V power supplyPin compatible with Industry-Standards ADC0831/4/8
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Supply Voltage (VCC) 6.5V
Voltage at Inputs and Outputs -0.3V to VCC + 0.3V
Power Dissipation at TA e 25§C (Note 5) 800 mW
ESD Susceptibility (Note 6) 1500V
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Required Field 
