MAX981ESA+ Equivalent & Substitute Parts

Part Overview

The MAX981ESA+ is a linear comparator integrated circuit with integrated voltage reference, manufactured by Analog Devices Inc./Maxim Integrated. This device functions as a single-element comparator with voltage reference capability in an 8-SOIC surface mount package. The part is currently in active production status with 1157 units in stock inventory. Finding equivalent and substitute parts becomes necessary when addressing supply chain constraints, lead time requirements, or specific application packaging preferences while maintaining functional compatibility within defined electrical and mechanical parameters.

Substiute Parts

MAX981ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1242MAX981ESA+ Datasheet

Current PartRFQ

MAX981ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1242MAX981ESA+ Datasheet

DirectRFQ

MIC833YM5-TR

Microchip TechnologyIn Stock: 4582MIC833YM5-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX981ESA+ are identified based on strict alignment with the following critical parameters:

• Functional Type: Comparator with integrated voltage reference
• Number of Elements: Single comparator element
• Supply Voltage Compatibility: Operating range overlap within 2.5V ~ 11V or ±1.25V ~ 5.5V
• Operating Temperature Range: -40°C ~ 85°C
• Compliance Standards: ROHS3 Compliant, REACH Unaffected
• Mounting Technology: Surface mount configuration
• Package Compatibility: Electrical and mechanical pin compatibility

The MIC833YM5-TR from Microchip Technology qualifies as a manufacturer-recommended substitute. While it employs a different package form factor (SOT-23-5 versus 8-SOIC), it maintains functional equivalence through matching comparator with voltage reference architecture, identical operating temperature range, overlapping supply voltage specifications, and equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Same Package): The MAX981ESA+ remains the primary selection when 8-SOIC package footprint is required and supply is available. This part maintains active production status with substantial inventory (1157 units in stock).

Alternative Selection (Different Package): The MIC833YM5-TR serves as a functional substitute when supply constraints or lead time considerations necessitate an alternative. This part is manufactured by Microchip Technology under the IttyBitty® series designation and maintains active production status with higher inventory availability (4541 units in stock). Selection of this substitute requires PCB layout redesign to accommodate the SOT-23-5 package footprint. Both parts maintain identical operating temperature specifications and equivalent compliance certifications (ROHS3, REACH Unaffected, MSL 1).

The supply voltage operating range for MIC833YM5-TR (1.5V ~ 5.5V) is narrower than MAX981ESA+ (2.5V ~ 11V). Applications requiring supply voltages above 5.5V or below 2.5V must retain the MAX981ESA+ or identify alternative solutions outside this substitute group.

Frequently Asked Questions (FAQ)

Q: Can MIC833YM5-TR be used as a direct pin-for-pin replacement for MAX981ESA+?

A: No. The MIC833YM5-TR uses SOT-23-5 package geometry while MAX981ESA+ uses 8-SOIC package. Pin count and physical layout differ, requiring PCB redesign. However, functional equivalence is maintained for comparator with voltage reference applications within the overlapping supply voltage range of 2.5V ~ 5.5V.

Q: What is the critical supply voltage consideration when substituting with MIC833YM5-TR?

A: The MIC833YM5-TR operates within 1.5V ~ 5.5V supply range, while MAX981ESA+ supports 2.5V ~ 11V. Applications requiring supply voltages exceeding 5.5V cannot use MIC833YM5-TR as a substitute. Verify your application's supply voltage specification before selecting this alternative.

Q: Are both parts equivalent in terms of regulatory compliance?

A: Yes. Both MAX981ESA+ and MIC833YM5-TR carry ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity level. Both are suitable for applications with equivalent compliance requirements.

Q: What packaging considerations apply when switching from MAX981ESA+ to MIC833YM5-TR?

A: MAX981ESA+ uses 8-SOIC (0.154", 3.90mm width) surface mount package. MIC833YM5-TR uses SOT-23-5 (SC-74A) surface mount package. The SOT-23-5 package is significantly smaller. PCB layout, trace routing, and component placement must be redesigned to accommodate the different footprint. Verify component spacing and thermal management requirements for your specific application.

Q: Do both parts operate across the same temperature range?

A: Yes. Both MAX981ESA+ and MIC833YM5-TR operate across -40°C ~ 85°C, providing equivalent temperature performance specifications.