ADC08038 - 8-Bit High Speed Serial I/O A/D Converter with Multiplexer Options, Voltage Ref. and Track/Hold Function [Discontinued]

Datasheet	Obsolete Versions	Application Notes	Knowledge Base

Features

•	Serial digital data link requires few I/O pins
•	Analog input track/hold function
•	2-, 4-, or 8-channel input multiplexer options with address logic
•	0V to 5V analog input range with single 5V power supply
•	No zero or full scale adjustment required
•	TTL/CMOS input/output compatible
•	On chip 2.6V band-gap reference
•	0.3″ standard width 8-, 14-, or 20-pin DIP package
•	14-, 20-pin small-outline packages

Key Specification

•	Resolution: 8 bits
•	Conversion time (f_C = 1 MHz): 8μs (max)
•	Power dissipation: 20mW (max)
•	Single supply: 5V_DC (±5%)
•	Total unadjusted error: ±½ LSB and ±1LSB
•	No missing codes over temperature

General Description

The ADC08031/ADC08032/ADC08034/ADC08038 are 8-bit successive approximation A/D converters with serial I/O and configurable input multiplexers with up to 8 channels. More...

Applications

•	Digitizing automotive sensors
•	Process control monitoring
•	Remote sensing in noisy environments
•	Instrumentation
•	Test systems
•	Embedded diagnostics

Typical Performance

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Also Recommended

ADC088S102

1, 2, 4, And 8 Channel Input Versions

Additional Resources

Application Notes

Block Diagram

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Datasheet

RoHS Compliance Information	Size in Kbytes	Date
ADC08031/ADC08032/ADC08034/ADC08038 8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options, Voltage Reference, and Track/Hold Function	796 Kbytes	10-Jan-08	Download
ADC08031/ADC08032/ADC08034/ADC08038 8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options, Voltage Reference, and Track/Hold Function (Japanese)	280 Kbytes

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Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
ADC08038BIN	NONE	NONE	08 Jun 1999
ADC08038BIWM	NONE	NONE	08 Jun 1999
ADC08038BIWMX	NONE	NONE	09 Mar 1999
ADC08038CIN	NONE	NONE	06 Dec 2000
ADC08038CIWM	ADC0838CIWM	NATIONAL SEMICONDUCTOR	05 Dec 2006
ADC08038CIWMX	ADC0838CIWM	NATIONAL SEMICONDUCTOR	05 Dec 2006

General Description

The ADC08031/ADC08032/ADC08034/ADC08038 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 MICROWIRE ™ serial data exchange standard for easy interface to the COPS ™ family of controllers, and can easily interface with standard shift registers or microprocessors.

The ADC08034 and ADC08038 provide a 2.6V band-gap derived reference. For devices offering guaranteed voltage reference performance over temperature see ADC08131, ADC08134 and ADC08138.

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.

More Application Notes

Title	Size in Kbytes	Date
AN-769: Dynamic Specifications for Sampling A/D Converters	128 Kbytes	5-Aug-95	Download
AN-280: AN-280 A/D Converters Easily Interface with 70 Series Microprocessors	134 Kbytes	4-Oct-04	Download

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

[Information as of 8-Nov-2009]