ADC0834CCWMX Equivalent & Substitute Parts

Part Overview

The ADC0834CCWMX is an 8-bit Analog to Digital Converter manufactured by Texas Instruments, designed for data acquisition applications requiring 2 or 4 input channels with SAR (Successive Approximation Register) architecture. The device operates with external voltage reference and supports multiple input configurations including differential, pseudo-differential, and single-ended modes via SPI interface.

The ADC0834CCWMX is classified as Obsolete, making it necessary to identify equivalent substitute parts for new designs or ongoing production requirements. The primary substitute maintains identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

ADC0834CCWMX

Texas InstrumentsIn Stock: 7517ADC0834CCWMX Datasheet

Current PartRFQ

ADC0834CCWMX/NOPB

Texas InstrumentsIn Stock: 1353ADC0834CCWMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADC0834CCWMX is determined by strict equivalence across the following critical parameters:

• Resolution and Sampling Rate: Both main and substitute parts must maintain 8-bit resolution at 31.25k samples per second
• Input Configuration: Identical support for 2 or 4 input channels with differential, pseudo-differential, and single-ended input types
• Interface Protocol: SPI data interface compatibility
• Voltage Specifications: Matching analog and digital supply voltage ranges (4.5V ~ 6.3V)
• Package and Mounting: Identical 14-SOIC surface mount package
• Temperature Range: Operating temperature specification of 0°C ~ 70°C

The ADC0834CCWMX/NOPB qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction lies in product status and compliance certifications rather than functional capability.

Parameter Comparison

Engineering Selection Recommendations

The ADC0834CCWMX/NOPB is the direct functional equivalent for applications currently using the ADC0834CCWMX. Selection between these parts should be based on the following criteria:

Product Status: The ADC0834CCWMX is classified as Obsolete, indicating discontinued manufacturing and limited availability. The ADC0834CCWMX/NOPB carries Last Time Buy status, providing extended availability for transition planning.

Compliance Requirements: The ADC0834CCWMX/NOPB meets ROHS3 compliance standards, whereas the original part is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, the substitute part is mandatory.

Packaging and Supply Chain: The ADC0834CCWMX/NOPB is supplied in Tape & Reel format, standard for automated assembly processes. Both parts maintain identical electrical performance and pinout compatibility, ensuring direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the ADC0834CCWMX/NOPB be used as a direct replacement for the ADC0834CCWMX?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters including resolution, sampling rate, input configurations, supply voltages, and package type. No circuit modifications are required.

Q: What is the difference between the ADC0834CCWMX and ADC0834CCWMX/NOPB?

A: The primary differences are product status, RoHS compliance, and packaging format. The ADC0834CCWMX/NOPB is ROHS3 compliant and supplied in Tape & Reel format, while the original part is RoHS non-compliant and supplied in bulk packaging. Electrical specifications are identical.

Q: Why is the ADC0834CCWMX marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The ADC0834CCWMX/NOPB with Last Time Buy status provides a transition path for existing designs requiring this device family.

Q: Are there any compatibility concerns with the 14-SOIC package?

A: No. Both parts use identical 14-SOIC surface mount packaging with 0.295" width (7.50mm). PCB footprints and assembly processes remain unchanged.

Q: What supply voltage range does this ADC support?

A: Both analog and digital supply voltages operate within the 4.5V to 6.3V range. External voltage reference is required for operation.

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

A: Yes. The SPI data interface is standard across both parts and compatible with conventional microcontroller SPI peripherals supporting the specified protocol.