MAX1285BCSA Equivalent & Substitute Parts

Part Overview

The MAX1285BCSA 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 300 kSPS sampling rate and SPI digital interface, housed in an 8-SOIC surface mount package.

The MAX1285BCSA is classified as obsolete. Finding equivalent or substitute parts is necessary to support legacy system maintenance, ensure supply chain continuity, and maintain design compatibility in production environments where this component is specified.

Substiute Parts

MAX1285BCSA

Analog Devices Inc./Maxim IntegratedIn Stock: 914MAX1285BCSA Datasheet

Current PartRFQ

MAX1285BCSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3196MAX1285BCSA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1285BCSA is determined by strict equivalence across the following critical parameters:

• Resolution: 12 bits
• Sampling Rate: 300 kSPS
• Input Configuration: 1 single-ended input
• Digital Interface: SPI
• Architecture: SAR with internal reference
• Supply Voltage Range: 2.7V to 3.6V (both analog and digital)
• Package: 8-SOIC form factor
• Mounting: Surface mount

The MAX1285BCSA+ qualifies as a direct substitute because it maintains identical electrical specifications, architecture, and package configuration. The primary distinction is product status and compliance certification, not functional or electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The MAX1285BCSA+ is the direct functional equivalent of the MAX1285BCSA. Both components share identical electrical specifications, pin configuration, and package geometry, ensuring pin-for-pin compatibility.

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

Product Status: The MAX1285BCSA is obsolete, while the MAX1285BCSA+ is active. For new designs or ongoing production, the MAX1285BCSA+ ensures continued availability and manufacturer support.

Regulatory Compliance: The MAX1285BCSA+ meets ROHS3 compliance requirements, whereas the original MAX1285BCSA is RoHS non-compliant. Applications subject to RoHS regulations or customer requirements mandating RoHS compliance must use the MAX1285BCSA+.

Supply Chain Continuity: The MAX1285BCSA+ is available in higher inventory quantities (3100 units) compared to the MAX1285BCSA (817 units), supporting sustained production schedules.

Electrical Equivalence: No electrical or functional differences exist between these parts. Substitution requires no circuit modifications or design changes.

Frequently Asked Questions (FAQ)

Q: Can the MAX1285BCSA+ be used as a direct replacement for the MAX1285BCSA in existing designs?

A: Yes. The MAX1285BCSA+ is electrically and mechanically identical to the MAX1285BCSA. No circuit modifications, firmware changes, or PCB redesign are required. Pin configuration, package dimensions, and electrical specifications are identical.

Q: What is the difference between the MAX1285BCSA and MAX1285BCSA+?

A: The primary differences are product status, RoHS compliance certification, and packaging format. The MAX1285BCSA+ is an active product with ROHS3 compliance and is supplied in tube packaging. Electrical and functional specifications are identical.

Q: Are there any compatibility concerns when substituting the MAX1285BCSA+ for the MAX1285BCSA?

A: No compatibility concerns exist. Both components operate within the same supply voltage range (2.7V to 3.6V), support identical SPI communication protocols, and are housed in the same 8-SOIC package. PCB footprints and soldering requirements are identical.

Q: Why is the MAX1285BCSA marked as obsolete?

A: The MAX1285BCSA has been superseded by the MAX1285BCSA+, which offers improved compliance certifications and active manufacturer support. Analog Devices Inc./Maxim Integrated continues to manufacture the MAX1285BCSA+ as the current production variant.

Q: Does the MAX1285BCSA+ meet current regulatory requirements?

A: Yes. The MAX1285BCSA+ is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components in most jurisdictions.

Q: What packaging options are available for the MAX1285BCSA+?

A: The MAX1285BCSA+ is supplied in tube packaging format, suitable for automated assembly processes and component handling in production environments.