ADC10154CIWM

Analog To Digital Converters (ADC) Overview

The ADC10154CIWM is a CMOS 10-bit plus sign successive approximation analog-to-digital converter featuring a configurable multiplexer, track/hold function, and internal 2.5V band-gap reference. It supports 4-channel input selection with software-configurable single-ended, differential, or pseudo-differential modes. The device operates on a single +5V supply for unipolar inputs (0V to 5V) or dual ±5V supplies for bipolar ranges (-5V to +5V). Key electrical parameters include a maximum conversion time of 4.4 µs at 10-bit resolution, an integral linearity error of ±1 LSB (max), and a sampling rate of 166 kHz. It utilizes a parallel interface with programmable resolution and output data formatting.

Analog To Digital Converters (ADC) Feature Summary

• Configurable 4-channel analog input multiplexer supporting single-ended, differential, and pseudo-differential modes
• Internal 2.5V band-gap voltage reference with ratiometric or absolute operation capability
• Programmable resolution (8-bit or 10-bit plus sign) allowing trade-offs between speed and precision
• Parallel digital interface with tri-state outputs and interrupt signal for conversion completion

Analog To Digital Converters (ADC) Applications

• Process control systems requiring multi-channel signal acquisition
• Industrial instrumentation and data acquisition modules
• Test equipment involving analog signal digitization

Analog To Digital Converters (ADC) Procurement Notes

Verify the manufacturer origin, as the component was originally produced by National Semiconductor before its acquisition by Texas Instruments. Confirm the package type corresponds to the M24B suffix for the SOIC-24 variant. Check for obsolescence status, as this specific part number may be discontinued or superseded by newer generations within the same family.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC10154CIWM when a 4-channel multiplexed input is required rather than the 8-channel ADC10158 variant. Ensure the application supports the 5V logic levels and power supply requirements. Consider the 4.4 µs conversion time limit if higher throughput is needed, or utilize the 8-bit mode for faster sampling rates up to 207 kHz. Verify that the analog input range matches the chosen supply configuration.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC10154/ADC10158 series of 10-bit successive approximation ADCs. The 'C' suffix indicates an industrial temperature range of -40°C to +85°C. The 'IWM' suffix denotes the SOIC-24 surface-mount package. The device integrates a capacitive array track/hold and a SAR architecture to achieve low power consumption and high accuracy without external adjustment components.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult current Texas Instruments product selection guides for modern successors with compatible pinouts or functional equivalents.