ADC0831 - 8-Bit Serial I/O A/D Converter with Multiplexer Option

Datasheet	Packaging	Samples & Pricing	Reliability	Application Notes	Knowledge Base

Features

•	NSC MICROWIRE compatible-direct interface to COPS family processors
•	Easy interface to all microprocessors, or operates "stand-alone"
•	Operates ratiometrically or with 5 V_DC 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

Key Specification

Resolution	8 Bits
Total Unadjusted Error	±½ LSB and ±1 LSB
Single Supply	5 V_DC
Low Power	15 mW
Conversion Time	32 µs

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. More...

Typical Application

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Parameters Values

Resolution 8 bits

Input Channels 1

Interface Type Microwire (Serial I/O)

Differential Input Yes

Max KSample Rate 31 ksps

Min Supply Voltage 4.5 Volt

Max Supply Voltage 6.3 Volt

Reference Source External

Temperature Min -40 deg C

Temperature Max 85 deg C

Power Down No

Input Sample/Hold No

Special Features Total unadjusted error is +/-1.0 LSB, Total unadjusted error is +/-0.5 LSB

Data Converter Type ADC

Max Sample Rate 0.031 MSPS

Typical Performance

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Also Recommended

ADC08831▲

Smaller & Improved Performance

Additional Resources

Application Notes

Block Diagram

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Datasheet

RoHS Compliance Information	Size in Kbytes	Date
ADC0831/ADC0832/ADC0834/ADC0838 8-Bit Serial I/O A/D Converters with Multiplexer Options	762 Kbytes	2-Aug-02	Download
ADC0831/ADC0832/ADC0834/ADC0838 8-Bit Serial I/O A/D Converters with Multiplexer Options (Japanese)	1130 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

ADC0831CCWM

SOIC WIDE

NOPB

260

RoHS

Download

Full production

N/A

1K+

$1.36

rail
of
50

NSUZXYTTE#
ADC0831
CCWM

12 weeks

1000

ADC0831CCWMX

SOIC WIDE

NOPB
STD

3
2A

260
220

RoHS

Download

Full production

N/A

1K+

$1.36

reel
of
1000

NSUZXYTTE#
ADC0831
CCWM

8 weeks

3000

ADC0831CCN

MDIP

NOPB
STD

1
1

NA
NA

RoHS

Download

Full production

N/A

1K+

$1.38

rail
of
40

NSUZXYTTE#
ADC
0831CCN

6 weeks

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

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.

Reliability Metrics

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

Application Notes

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

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More Application Notes

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

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 8-Nov-2009]