Features NSC MICROWIRE compatible-direct interface to COPS family processors Easy interface to all microprocessors, or operates "stand-alone" Operates ratiometrically or with 5 VDC voltage reference No zero or full-scale adjust required 2-, 4- or 8-channel multiplexer options with address logic Shunt regulator allows operation with high voltage supplies 0V to 5V input range with single 5V power supply Remote operation with serial digital data link TTL/MOS input/output compatible 0.3" standard width, 8-, 14- or 20-pin DIP package 20 Pin Molded Chip Carrier Package (ADC0838 only) Surface-Mount Package 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. Key Specification Resolution 8 Bits Total Unadjusted Error ±½ LSB and ±1 LSB Single Supply 5 VDC Low Power 15 mW Conversion Time 32 µs

Also Recommended ADC08831▲ Smaller & Improved Performance

Typical Application click for larger image	Block Diagram click for larger image
Typical Performance click for larger image

Datasheets

Title		Size	Date	Other Language
	ADC0831/ADC0832/ADC0834/ADC0838 8-Bit Serial I/O A/D Converters with Multiplexer Options	762 Kbytes	2-Aug-02	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-280: AN-280 A/D Converters Easily Interface with 70 Series Microprocessors	134 Kbytes	4-Oct-04

More Application Notes

Title		Size	Date	Other Language
	AN-281: AN-281 Data Acquisition Using INS8048	129 Kbytes	4-Oct-04

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC0831CCN/NOPB ADC0831CCN RoHS Status	MDIP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 289 AVNET-EM Worldwide 84 DIGIKEY Worldwide 1217 FARNELL Europe and Asia 118 FUTURE Worldwide 520 NEWARK Americas 288 RS COMPONENTS Worldwide 95	$1.38 each at 1K+ pcs	rail of 40
ADC0831CCWM/NOPB ADC0831CCWM RoHS Status	SOIC WIDE	Full production Lead Time: 12 weeks	Distributor Region Qty DIGIKEY Worldwide 295	$1.36 each at 1K+ pcs	rail of 50
ADC0831CCWMX/NOPB ADC0831CCWMX RoHS Status	SOIC WIDE	Full production Lead Time: 12 weeks	Distributor Region Qty ARROW Worldwide 1000 DIGIKEY Worldwide 0 FUTURE Worldwide 659	$1.36 each at 1K+ pcs	reel of 1000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC0831BCN	NONE	NONE	08 Sep 1998
ADC0831CIWM	NONE	NONE	08 Sep 1998
ADC0831CIWMX	NONE	NONE	08 Sep 1998

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
ADC0831CCN/NOPB ADC0831CCN	508.252 510.002	MDIP	8	1 1	NA NA	Detail	Download	N/A	NSUZXYTTE# ADC 0831CCN
ADC0831CCWM/NOPB ADC0831CCWM	359.279 359.999	SOIC WIDE	14	3 2A	260 220	Detail	Download	N/A	NSUZXYTTE# ADC0831 CCWM
ADC0831CCWMX/NOPB ADC0831CCWMX	359.279 359.999	SOIC WIDE	14	3 2A	260 220	Detail	Download	N/A	NSUZXYTTE# ADC0831 CCWM

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

CAD Symbols and Models Download ADC0831 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC0831CCN	CMOS	0	19715	0	0	2605000	2	739175862
ADC0831CCWM	CMOS	0	19715	0	0	2605000	2	739175862
ADC0831CCWMX	CMOS	0	19715	0	0	2605000	2	739175862

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC0831BCN	NONE	NONE	08 Sep 1998
ADC0831CIWM	NONE	NONE	08 Sep 1998
ADC0831CIWMX	NONE	NONE	08 Sep 1998