MAX6675ISA Equivalent & Substitute Parts

Part Overview

The MAX6675ISA is a thermocouple-to-digital converter interface IC manufactured by Analog Devices Inc./Maxim Integrated. This component converts thermocouple signals into digital output for temperature measurement applications. The MAX6675ISA is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure long-term component availability for new production runs and system updates.

Substiute Parts

MAX6675ISA

Analog Devices Inc./Maxim IntegratedIn Stock: 23740MAX6675ISA Datasheet

Current PartRFQ

MAX6675ISA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2292MAX6675ISA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX6675ISA is determined by strict alignment of the following electrical and mechanical parameters:

• Package / Case: 8-SOIC (0.154", 3.90mm Width) — ensures PCB footprint compatibility
• Mounting Type: Surface Mount — maintains assembly process compatibility
• Current - Supply: 1.5 mA — confirms power budget alignment
• Operating Temperature: -20°C ~ 85°C — validates thermal operating range
• Manufacturer: Analog Devices Inc./Maxim Integrated — ensures design continuity within the same product family
• Base Product Number: MAX6675 — confirms functional equivalence within the MAX6675 series

The MAX6675ISA+ meets all these criteria and is classified as an active product, making it a direct substitute for obsolete MAX6675ISA applications.

Parameter Comparison

Engineering Selection Recommendations

The MAX6675ISA+ is the direct substitute for MAX6675ISA applications. Both parts share identical electrical specifications, package geometry, and thermal operating ranges. The primary distinction is product status: MAX6675ISA is obsolete while MAX6675ISA+ is active and currently in production.

The MAX6675ISA+ offers improved compliance status, meeting ROHS3 requirements compared to the non-compliant RoHS status of the original MAX6675ISA. Both parts maintain REACH Unaffected and EAR99 export classification status. For new designs and production continuity, MAX6675ISA+ is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can MAX6675ISA+ be used as a direct replacement for MAX6675ISA?

A: Yes. Both parts are identical in electrical performance, package type (8-SOIC), mounting method (Surface Mount), supply current (1.5 mA), and operating temperature range (-20°C ~ 85°C). The MAX6675ISA+ is the active production equivalent.

Q: What is the difference between MAX6675ISA and MAX6675ISA+?

A: The primary differences are product status and RoHS compliance. MAX6675ISA is obsolete and RoHS non-compliant, while MAX6675ISA+ is active and ROHS3 compliant. All functional and electrical parameters remain identical.

Q: Are there any PCB layout changes required when switching from MAX6675ISA to MAX6675ISA+?

A: No. Both parts use the identical 8-SOIC (0.154", 3.90mm Width) package, ensuring footprint compatibility without PCB redesign.

Q: What is the supply current requirement for MAX6675ISA+?

A: The supply current is 1.5 mA, matching the original MAX6675ISA specification.

Q: Is MAX6675ISA+ suitable for applications requiring RoHS compliance?

A: Yes. MAX6675ISA+ is ROHS3 compliant, making it suitable for applications with RoHS requirements. The original MAX6675ISA is not RoHS compliant.