ADC0831CCWM Equivalent & Substitute Parts

Part Overview

The ADC0831CCWM is an 8-bit Analog to Digital Converter manufactured by Texas Instruments, featuring a single input with SAR (Successive Approximation Register) architecture and SPI data interface. This component is classified as Obsolete, which necessitates identification of equivalent and substitute parts for ongoing design requirements and production continuity. The part operates with external voltage reference and supports differential, pseudo-differential, and single-ended input configurations.

Substiute Parts

ADC0831CCWM

Texas InstrumentsIn Stock: 8359ADC0831CCWM Datasheet

Current PartRFQ

ADC0831CCWM/NOPB

Texas InstrumentsIn Stock: 1016ADC0831CCWM/NOPB Datasheet

DirectRFQ

TLC0831ID

Texas InstrumentsIn Stock: 1848TLC0831ID Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ADC0831CCWM are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Resolution: 8-bit analog to digital conversion capability
• Sampling Rate: Minimum 31k samples per second
• Input Configuration: Support for single-ended or differential input modes
• Data Interface: SPI protocol compatibility
• Architecture: SAR-based conversion
• Reference Type: External voltage reference capability
• Supply Voltage Range: Compatibility with 4.5V to 6.3V analog and digital supplies
• Mounting Type: Surface mount package

Substitute Parts Identified:

1. ADC0831CCWM/NOPB - Direct equivalent with identical electrical specifications and 14-SOIC packaging. Differs in product status (Last Time Buy vs. Obsolete) and RoHS compliance level.

2. TLC0831ID - Functional substitute with 8-bit resolution, 31k sampling rate, and SPI interface. Differs in package type (8-SOIC vs. 14-SOIC), supply voltage specification (5V fixed vs. 4.5V-6.3V range), operating temperature range (-40°C to 85°C vs. 0°C to 70°C), and input type support (differential and single-ended only, without pseudo-differential).

Parameter Comparison

Engineering Selection Recommendations

ADC0831CCWM/NOPB is the primary substitute for ADC0831CCWM. Both parts maintain identical electrical specifications, pin configuration, and 14-SOIC packaging. The ADC0831CCWM/NOPB offers improved compliance status (ROHS3 Compliant vs. RoHS non-compliant) and Last Time Buy availability, making it suitable for designs requiring direct replacement without circuit modification.

TLC0831ID serves as a functional alternative for applications where package size reduction is acceptable. This part is currently Active in production, providing long-term availability. However, substitution requires evaluation of the following differences: reduced package footprint (8-SOIC vs. 14-SOIC), fixed 5V supply requirement (vs. 4.5V-6.3V range), extended operating temperature range (-40°C to 85°C), and absence of pseudo-differential input support. Circuit redesign may be necessary to accommodate these parameter variations.

Frequently Asked Questions (FAQ)

Q: Can ADC0831CCWM/NOPB be used as a direct replacement for ADC0831CCWM?

A: Yes. Both parts are electrically and mechanically identical, with the same 14-SOIC package, pin configuration, and electrical specifications. No circuit modification is required. The primary difference is product status and RoHS compliance level.

Q: What are the key differences between ADC0831CCWM and TLC0831ID?

A: The primary differences are package type (14-SOIC vs. 8-SOIC), supply voltage specification (4.5V-6.3V range vs. fixed 5V), operating temperature range (0°C-70°C vs. -40°C-85°C), and input type support (TLC0831ID does not support pseudo-differential input). Sampling rates are equivalent (31.25k vs. 31k samples per second).

Q: Is TLC0831ID suitable for designs currently using ADC0831CCWM?

A: TLC0831ID provides functional equivalence in 8-bit resolution, SAR architecture, and SPI interface. Substitution is feasible if the application operates at 5V supply voltage, does not require pseudo-differential input capability, and can accommodate the smaller 8-SOIC package footprint. Circuit board layout modification is required due to different pin count and package dimensions.

Q: What is the impact of package size difference between 14-SOIC and 8-SOIC?

A: The 8-SOIC package (0.154" width) is significantly smaller than the 14-SOIC package (0.295" width). This difference affects printed circuit board layout, routing, and component placement. Designs using TLC0831ID require PCB redesign to accommodate the reduced package footprint and different pin configuration.

Q: Are all substitute parts RoHS compliant?

A: ADC0831CCWM/NOPB and TLC0831ID are both ROHS3 Compliant. The original ADC0831CCWM is RoHS non-compliant. For applications requiring RoHS compliance, either substitute part is acceptable.

Q: What is the availability status of these parts?

A: ADC0831CCWM is Obsolete. ADC0831CCWM/NOPB is Last Time Buy. TLC0831ID is Active in production, providing the longest-term availability for new designs and ongoing production requirements.