MAX922MSA/PR Equivalent & Substitute Parts

Part Overview

The MAX922MSA/PR is a general-purpose CMOS/TTL comparator manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface-mount package. This single-element comparator is designed for applications requiring voltage comparison with TTL-compatible output. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

MAX922MSA/PR

Analog Devices Inc./Maxim IntegratedIn Stock: 2036MAX922MSA/PR Datasheet

Current PartRFQ

MAX922MSA/PR+

Analog Devices Inc./Maxim IntegratedIn Stock: 971MAX922MSA/PR+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX922MSA/PR is determined by strict alignment with the following electrical and mechanical parameters:

• Supply voltage range compatibility: 2.5V ~ 11V, ±1.25V ~ 5.5V
• Input offset voltage specification: 10mV @ 5V maximum
• Quiescent current: 3.2µA maximum
• Propagation delay: 12µs maximum
• Operating temperature: -55°C ~ 125°C
• Package: 8-SOIC surface-mount form factor
• Output type: CMOS and TTL compatible
• RoHS3 compliance requirement

The MAX922MSA/PR+ qualifies as a direct substitute based on these parameters. While it contains two comparator elements versus one in the original part, all electrical specifications remain within or equal to the original device specifications, and the package footprint is identical.

Parameter Comparison

Engineering Selection Recommendations

The MAX922MSA/PR+ is the appropriate substitute for the obsolete MAX922MSA/PR. Both devices maintain identical electrical specifications across all critical parameters: supply voltage range, input offset voltage, quiescent current, propagation delay, and operating temperature. Package compatibility is confirmed through identical 8-SOIC footprints.

The MAX922MSA/PR+ offers the additional advantage of active product status, ensuring continued availability and manufacturing support. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current production environments.

The presence of two comparator elements in the MAX922MSA/PR+ versus one in the original part does not affect substitution viability when only a single comparator function is required in the application. Unused comparator elements remain inactive and do not impact circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the MAX922MSA/PR+ directly replace the MAX922MSA/PR in existing designs?

A: Yes. The MAX922MSA/PR+ maintains identical electrical specifications and package footprint. Pin-for-pin compatibility is confirmed for the active comparator element. Unused comparator elements do not affect operation.

Q: What is the significance of the "Rail-to-Rail" output specification in the MAX922MSA/PR+?

A: Rail-to-Rail output capability indicates the output can swing to both supply rails. This is an enhancement over the original part and does not create incompatibility; it expands output voltage range capability.

Q: Are there any thermal or reliability differences between these parts?

A: Both parts share identical operating temperature ranges (-55°C ~ 125°C) and quiescent current specifications (3.2µA max). Thermal performance is equivalent.

Q: Does the dual-element configuration of the MAX922MSA/PR+ affect board layout or PCB design?

A: No. The 8-SOIC package footprint is identical. PCB layout remains unchanged. Only the internal die configuration differs.

Q: What is the inventory status for these parts?

A: The MAX922MSA/PR is obsolete with 2000 pieces in stock. The MAX922MSA/PR+ is active production with 882 pieces currently available.

Q: Are both parts RoHS compliant?

A: Yes. Both the MAX922MSA/PR and MAX922MSA/PR+ are ROHS3 compliant and REACH unaffected.