ADC0831CCWM

Analog To Digital Converters (ADC) Overview

The ADC0831CCWM is an 8-bit successive approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a single differential input channel and operates on a single 5 VDC supply with a power consumption of 15 mW. The device utilizes a TI MICROWIRE-compatible serial interface for direct connection to processors. Key electrical specifications include a total unadjusted error of ±1 LSB, a conversion time of 32 μs, and an operating temperature range of 0°C to +70°C. It is housed in a standard width SOIC-8 package.

Analog To Digital Converters (ADC) Feature Summary

• 8-Bit Resolution with SAR Architecture
• Single Differential Input Channel
• TI MICROWIRE Compatible Serial Interface
• Low Power Consumption: 15 mW

Analog To Digital Converters (ADC) Applications

• Remote operation with serial digital data links
• Instrumentation systems requiring noise-immune digital transmission
• Embedded systems interfacing with COPS family processors or microprocessors

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CCWM' against the manufacturer's current product status documentation. Suffixes often indicate package type, temperature range, or environmental compliance. Confirm that the commercial grade temperature range (0°C to +70°C) aligns with the application requirements before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single differential input is required without multiplexing overhead. Ensure the system clock frequency remains within the 10 kHz to 400 kHz range. Verify that the host processor supports the MICROWIRE serial protocol or can emulate it via shift registers. Consider the ±1 LSB total unadjusted error specification for accuracy requirements.

Analog To Digital Converters (ADC) Part Context

The ADC0831-N is part of the ADC0831/2/4/8 series from Texas Instruments. This series provides 8-bit serial I/O A/D converters with varying multiplexer options. While the ADC0832, ADC0834, and ADC0838 offer 2, 4, and 8-channel multiplexers respectively, the ADC0831 is configured specifically for a single differential input, simplifying the interface for single-channel applications.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same series include other variants of the ADC0831-N family if pinout compatibility is maintained. For different channel counts, the ADC0832-N (2 channels), ADC0834-N (4 channels), or ADC0838-N (8 channels) may be considered, provided the additional multiplexer addressing logic is accommodated in the software design.

Analog To Digital Converters (ADC) FAQ

Does the ADC0831 support LSB-first output?

No, the ADC0831 outputs data exclusively in MSB-first format. Unlike other devices in the series such as the ADC0838, it does not support LSB-first output.

What is the maximum clock frequency for the ADC0831?

The maximum clock frequency (fCLK) is 400 kHz. The minimum frequency is 10 kHz.

Can the ADC0831 operate with a voltage reference lower than 5V?

Yes, the reference voltage can be adjusted to encode smaller analog voltage spans to the full 8 bits of resolution, provided the reference source can drive the typical 3.5 kΩ input resistance.