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ADC0838

National Semiconductor
Part Number ADC0838
Manufacturer National Semiconductor
Published Mar 24, 2005
Description 8-Bit Serial I/O A/D Converters
Detailed Description ADC0831/ADC0832/ADC0834/ADC0838 8-Bit Serial I/O A/D Converters w
Datasheet PDF File ADC0838 PDF File

ADC0838
ADC0838


Overview
ADC0831/ADC0832/ADC0834/ADC0838 8-Bit Serial I/O A/D Converters with Multiplexer Options August 1999 ADC0831/ADC0832/ADC0834/ADC0838 8-Bit Serial I/O A/D Converters with Multiplexer Options General Description The ADC0831 series are 8-bit successive approximation A/D converters with a 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 processors, and can interface with standard shift registers or µPs.
The 2-, 4- or 8-channel multiplexers are software configured for single-ended or differential inputs as well as channel assignment.
The differential analog voltage input allows increasing the common-mode rejection and offsetting the analog zero input voltage value.
In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution.
n Operates ratiometrically or with 5 VDC voltage reference n No zero or full-scale adjust required n 2-, 4- or 8-channel multiplexer options with address logic n Shunt regulator allows operation with high voltage supplies n 0V to 5V input range with single 5V power supply n Remote operation with serial digital data link n TTL/MOS input/output compatible n 0.
3" standard width, 8-, 14- or 20-pin DIP package n 20 Pin Molded Chip Carrier Package (ADC0838 only) n Surface-Mount Package Key Specifications n n n n n Resolution Total Unadjusted Error Single Supply Low Power Conversion Time 8 Bits Features n NSC MICROWIRE compatible — direct interface to COPS family processors n Easy interface to all microprocessors, or operates “stand-alone” ± 1⁄2 LSB and ± 1 LSB 5 VDC 15 mW 32 µs Typical Application DS005583-1 TRI-STATE ® is a registered trademark of National Semiconductor Corporation.
COPS™ and MICROWIRE™ are trademarks of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS005583 www.
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