ADC0838CCWMX Equivalent & Substitute Parts

Part Overview

The ADC0838CCWMX is an 8-bit Analog to Digital Converter manufactured by Texas Instruments, designed for data acquisition applications requiring multiple input channels with SAR (Successive Approximation Register) architecture. This device features 4 or 8 selectable input channels, supports differential, pseudo-differential, and single-ended input configurations, and communicates via SPI interface.

The ADC0838CCWMX is classified as Obsolete, which necessitates identification of equivalent substitute parts for ongoing production and maintenance applications. Finding suitable alternatives ensures design continuity and supply chain reliability for systems currently utilizing this component.

Substiute Parts

ADC0838CCWMX

Texas InstrumentsIn Stock: 7646ADC0838CCWMX Datasheet

Current PartRFQ

ADC0838CCWMX/NOPB

Texas InstrumentsIn Stock: 1313ADC0838CCWMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ADC0838CCWMX are identified based on strict equivalence of the following critical parameters:

• 8-bit resolution
• 4 or 8 input channel configuration
• Support for differential, pseudo-differential, and single-ended input modes
• SPI serial data interface
• SAR conversion architecture
• External reference voltage requirement
• Supply voltage range of 4.5V to 6.3V for both analog and digital supplies
• 20-SOIC surface mount package
• Operating temperature range of 0°C to 70°C

The ADC0838CCWMX/NOPB qualifies as a direct substitute, maintaining identical electrical specifications and package configuration while offering improved compliance status and alternative packaging options.

Parameter Comparison

Engineering Selection Recommendations

The ADC0838CCWMX/NOPB serves as the direct equivalent substitute for the obsolete ADC0838CCWMX. Both parts maintain identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility without circuit modification.

The ADC0838CCWMX/NOPB offers two significant advantages over the original part:

• Product Status: Classified as Last Time Buy rather than Obsolete, providing extended availability for procurement planning
• Regulatory Compliance: ROHS3 Compliant status versus RoHS non-compliant, meeting current environmental and regulatory requirements for new designs and manufacturing

Both parts carry REACH Unaffected status and EAR99 export classification. Selection between these variants should prioritize the ADC0838CCWMX/NOPB for new applications and ongoing production due to improved compliance posture and extended product lifecycle status.

Frequently Asked Questions (FAQ)

Q: Can the ADC0838CCWMX/NOPB replace the ADC0838CCWMX in existing designs without modification?

A: Yes. The ADC0838CCWMX/NOPB is a direct substitute with identical pin configuration, electrical specifications, and package dimensions. No circuit redesign or PCB layout changes are required.

Q: What is the difference between the ADC0838CCWMX and ADC0838CCWMX/NOPB?

A: The primary differences are product status and regulatory compliance. The ADC0838CCWMX/NOPB is Last Time Buy (extended availability) versus Obsolete, and is ROHS3 Compliant versus RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: Both parts use the 20-SOIC surface mount package with identical dimensions (0.295", 7.50mm Width). The ADC0838CCWMX/NOPB offers Cut Tape (CT) and Digi-Reel packaging options, while the original ADC0838CCWMX packaging specification is not detailed.

Q: What supply voltages are required for operation?

A: Both analog and digital supply voltages must be within the range of 4.5V to 6.3V. The device requires an external reference voltage for ADC operation.

Q: Is the SPI interface compatible with standard microcontroller implementations?

A: Yes. Both parts implement standard SPI serial interface protocol, compatible with microcontroller SPI ports and standard SPI communication libraries.

Q: What input configurations are supported?

A: The device supports differential, pseudo-differential, and single-ended input modes with 4 or 8 selectable input channels via internal multiplexer.