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

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

Datasheets

Title		Size	Date	Other Language
	ADC0834 8-Bit Serial I/O A/D Converter with Multiplexer Option	762 Kbytes	2-Aug-02	日本語

Application Notes

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

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
ADC0834CCN/NOPB ADC0834CCN RoHS Status	MDIP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 91 DIGI-KEY Worldwide 0 MOUSER Worldwide 272 TAYLOR Americas 91	$1.39 each at 1K+ pcs	rail of 25
ADC0834CCWM/NOPB ADC0834CCWM RoHS Status	SOIC WIDE	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 188 AVNET-EM Worldwide 295 DIGI-KEY Worldwide 656 MOUSER Worldwide 346 NEWARK Americas 345 TAYLOR Americas 392	$1.22 each at 1K+ pcs	rail of 50
ADC0834CCWMX/NOPB ADC0834CCWMX RoHS Status	SOIC WIDE	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 2000 AVNET-EM Worldwide 1000 DIGI-KEY Worldwide 0 MOUSER Worldwide 1000 TAYLOR Americas 2000	$1.22 each at 1K+ pcs	reel of 1000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC0834BCN	ADC0834CCWM	NATIONAL SEMICONDUCTOR	16 Nov 2008
ADC0834CIWM	NONE	NONE	08 Sep 1998
ADC0834CIWMX	NONE	NONE	08 Sep 1998

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

Moisture Sensitivity Level Data for ADC0834.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for ADC0834 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
ADC0834CCN/NOPB ADC0834CCN	986.751 990.002	MDIP	14	1 1	NA NA	Detail	Download	N/A	NSUZXYYTTE# ADC0834CCN
ADC0834CCWM/NOPB ADC0834CCWM	359.279 359.999	SOIC WIDE	14	3 2A	260 220	Detail	Download	N/A	NSUZXYTTE# ADC0834 CCWM
ADC0834CCWMX/NOPB ADC0834CCWMX	359.279 359.999	SOIC WIDE	14	3 2A	260 220	Detail	Download	N/A	NSUZXYTTE# ADC0834 CCWM

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

Moisture Sensitivity Level Data for ADC0834.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for ADC0834 is located at RoHS Status.

CAD Symbols and Models Download ADC0834 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
ADC0834CCN	CMOS	0	20300	0	0	2785000	2	790251354
ADC0834CCWM	CMOS	0	20300	0	0	2785000	2	790251354
ADC0834CCWMX	CMOS	0	20300	0	0	2785000	2	790251354

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/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for ADC0834.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for ADC0834 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC0834BCN	ADC0834CCWM	NATIONAL SEMICONDUCTOR	16 Nov 2008
ADC0834CIWM	NONE	NONE	08 Sep 1998
ADC0834CIWMX	NONE	NONE	08 Sep 1998