ADC08831IWMX

Analog To Digital Converters (ADC) Overview

The ADC08831IWMX is an 8-bit successive approximation analog-to-digital converter manufactured by National Semiconductor, now Texas Instruments. It features a configurable input multiplexer for two channels and a track/hold function that allows the analog voltage at the positive input to vary during conversion. The device utilizes a 3-wire serial interface compliant with the NSC MICROWIRE standard, enabling direct connection to microcontrollers, PLDs, DSPs, or shift registers. To minimize power consumption, it automatically enters low-power mode when not performing conversions.

Analog To Digital Converters (ADC) Feature Summary

• 8-bit SAR architecture with 250 kSPS sampling rate
• Configurable 2-channel multiplexer supporting single-ended, differential, and pseudo-differential modes
• 3-wire serial I/O compatible with MICROWIRE standard
• Track/hold function allowing analog variation during conversion

Analog To Digital Converters (ADC) Applications

• Remote sensing in noisy environments
• Instrumentation systems
• Embedded control systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments, as TI acquired National Semiconductor. Confirm the suffix 'IWMX' corresponds to the industrial temperature range (-40°C to +85°C) and SOIC-8 wide package. Ensure the datasheet version matches the specific revision for electrical characteristics.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring low pin count and simple serial interfacing. It is suitable where 8-bit resolution is sufficient and power efficiency is critical due to its automatic low-power mode. Consider the 2-channel multiplexer capability if multiple inputs need sequential monitoring without external switching components.

Analog To Digital Converters (ADC) Part Context

The ADC08831 belongs to a family of 8-bit serial A/D converters including the ADC08832. The 'IWMX' suffix indicates the industrial temperature grade and tape-and-reel packaging. This part is distinct from higher-speed variants like the ADC08031 or low-voltage versions like the ADCV08832.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes include ADC08831IM, ADC08831IN, and ADC08831IMM from the same product line. For low-voltage applications, consider the ADCV08832, though supply voltage ranges differ.