ADC08031CIWM

Analog To Digital Converters (ADC) Overview

The ADC08031CIWM is an obsolete 8-bit successive approximation analog-to-digital converter from Texas Instruments. It features a single-channel input and operates on a single 5V supply (4.5V to 6.3V). The device provides a maximum conversion time of 8 μs at a 1 MHz clock frequency, with a typical power dissipation of 20 mW. It utilizes a serial I/O interface compliant with the NSC MICROWIRE standard, requiring minimal processor pins. The CIWM suffix indicates a commercial temperature range (-40°C to +85°C) and a wide SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• 8-bit SAR architecture with 1 analog channel
• Serial I/O compatible with MICROWIRE standard
• Single 5VDC supply operation (4.5V–6.3V)
• Max conversion time of 8 μs at 1 MHz clock

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

This component is classified as obsolete by Texas Instruments. Verification of current availability requires checking distributor stock levels directly. No new production units are manufactured. Designers should consider alternative components for new projects due to end-of-life status.

Analog To Digital Converters (ADC) Selection Notes

Select this part only for legacy system maintenance or replacement where pin compatibility is critical. The ADC08031 offers a fixed single-ended input configuration without internal reference options. Ensure the application can accommodate the 8-pin PDIP or SOIC package constraints and the specific serial timing requirements.

Analog To Digital Converters (ADC) Part Context

The ADC08031 is part of the ADC0803x family, which includes variants with 2, 4, or 8 channels (ADC08032/4/8). Unlike the higher-channel variants, the ADC08031 lacks addressable multiplexer inputs and does not include an internal band-gap reference. It serves as the entry-level option for simple single-channel data acquisition tasks within this series.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the device is obsolete, no direct TI-qualified replacements are listed. Engineers must evaluate third-party compatible parts or modern equivalents based on pinout and electrical specifications.