MAX1284BCSA Equivalent & Substitute Parts

Part Overview

The MAX1284BCSA is a 12-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-ended input data acquisition applications. This component features a Successive Approximation Register (SAR) architecture with a 400 kSPS sampling rate and SPI digital interface, operating from a single 5V supply in an 8-SOIC surface mount package.

The MAX1284BCSA is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

MAX1284BCSA

Analog Devices Inc./Maxim IntegratedIn Stock: 995MAX1284BCSA Datasheet

Current PartRFQ

MAX1284BCSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2186MAX1284BCSA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1284BCSA is determined by strict equivalence across the following critical parameters:

• Resolution: 12-bit ADC
• Sampling Rate: 400 kSPS minimum
• Input Configuration: Single-ended, 1 input channel
• Digital Interface: SPI protocol
• Architecture: SAR-based conversion
• Reference: Internal voltage reference
• Supply Voltage: 5V analog and digital supplies
• Operating Temperature Range: 0°C to 70°C
• Package: 8-SOIC form factor with identical pinout and mechanical dimensions

The MAX1284BCSA+ meets all these criteria and is therefore classified as a direct substitute. The primary distinction between these parts is product status and compliance certification, not functional or electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The MAX1284BCSA+ is the direct functional equivalent of the MAX1284BCSA. Both components share identical electrical specifications, pinout, and package dimensions, ensuring drop-in compatibility at the circuit board level.

Selection between these parts should be based on the following factors:

Product Status: The MAX1284BCSA is obsolete, while the MAX1284BCSA+ maintains active production status. For new designs or ongoing production requiring long-term component availability, the MAX1284BCSA+ is the appropriate choice.

Compliance Requirements: The MAX1284BCSA+ is ROHS3 compliant, whereas the MAX1284BCSA is RoHS non-compliant. Applications subject to RoHS directives or customer specifications requiring RoHS compliance must use the MAX1284BCSA+.

Supply Chain Considerations: The MAX1284BCSA+ has significantly higher inventory availability (2160 pcs) compared to the MAX1284BCSA (886 pcs), supporting both immediate procurement and long-term supply security.

Both parts maintain identical moisture sensitivity levels and REACH/ECCN classifications, ensuring equivalent handling and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the MAX1284BCSA+ be used as a direct replacement for the MAX1284BCSA in existing designs?

A: Yes. The MAX1284BCSA+ is electrically and mechanically identical to the MAX1284BCSA. Both components feature the same 12-bit SAR ADC architecture, 400 kSPS sampling rate, SPI interface, 5V supply requirements, and 8-SOIC package. No circuit modifications are required for substitution.

Q: What is the primary difference between the MAX1284BCSA and MAX1284BCSA+?

A: The MAX1284BCSA+ is the active production variant with ROHS3 compliance certification. The MAX1284BCSA is an obsolete part with RoHS non-compliant status. Functionally and electrically, both parts are equivalent.

Q: Are there any pinout or package differences between these parts?

A: No. Both the MAX1284BCSA and MAX1284BCSA+ use the identical 8-SOIC package with 0.154" width (3.90mm). Pinout, lead spacing, and mechanical dimensions are identical, ensuring direct PCB compatibility.

Q: Which part should be specified for new designs?

A: The MAX1284BCSA+ should be specified for new designs. It maintains active production status, offers superior availability, and meets current RoHS compliance requirements.

Q: Are there any supply voltage or operating temperature differences?

A: No. Both parts operate from identical 5V analog and digital supplies and share the same 0°C to 70°C operating temperature range.

Q: What is the moisture sensitivity level for both parts?

A: Both the MAX1284BCSA and MAX1284BCSA+ have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.