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 in an 8-SOIC surface mount package and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for ongoing design support, production continuity, and component sourcing in applications where the MAX981ESA is currently deployed.

Substiute Parts

MAX981ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 881MAX981ESA 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 electrical and mechanical compatibility criteria. The primary substitution logic is based on the following key parameters:

Electrical Compatibility Criteria:

• Comparator with integrated voltage reference functionality
• Single-element comparator configuration
• Supply voltage range compatibility (2.5V ~ 11V, ±1.25V ~ 5.5V)
• Input offset voltage specification (10mV @ 5V maximum)
• Quiescent current specification (4µA maximum)
• Common-mode rejection ratio and power supply rejection ratio (80dB minimum)
• Hysteresis specification (50mV)
• Operating temperature range (-40°C ~ 85°C)

Mechanical Compatibility Criteria:

• Surface mount package configuration
• Pin count and footprint compatibility
• Moisture sensitivity level (MSL 1 or equivalent)

Compliance Criteria:

• RoHS3 compliance
• REACH unaffected status
• EAR99 export classification

The substitute parts listed below meet these criteria within the allowed parameter specifications for this product category.

Parameter Comparison

Engineering Selection Recommendations

MAX981ESA+ (Direct Substitute - Recommended for Immediate Replacement)

The MAX981ESA+ is the active production equivalent of the obsolete MAX981ESA. Both parts share identical electrical specifications, including supply voltage range (2.5V ~ 11V, ±1.25V ~ 5.5V), input offset voltage (10mV @ 5V), quiescent current (4µA), CMRR/PSRR (80dB), hysteresis (50mV), and operating temperature range (-40°C ~ 85°C). The MAX981ESA+ is packaged in 8-SOIC surface mount configuration with identical pin count and footprint. Both parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status. The MAX981ESA+ is currently in active production with higher inventory availability (1157 pcs), making it the primary substitute for direct replacement in existing designs.

MIC833YM5-TR (Alternative Substitute - Package Consideration Required)

The MIC833YM5-TR is a functionally equivalent comparator with integrated voltage reference manufactured by Microchip Technology. This part maintains the single-element comparator configuration with voltage reference and operates across the -40°C ~ 85°C temperature range. The MIC833YM5-TR is actively produced with substantial inventory (4541 pcs). However, this part is packaged in SOT-23-5 (SC-74A) configuration, which differs from the 8-SOIC package of the MAX981ESA. The supply voltage range for the MIC833YM5-TR is 1.5V ~ 5.5V, which is narrower than the MAX981ESA specification of 2.5V ~ 11V. The MIC833YM5-TR maintains ROHS3 compliance and MSL 1 rating. This part is suitable for applications where the narrower supply voltage range is acceptable and PCB layout can accommodate the SOT-23-5 package footprint.

Frequently Asked Questions (FAQ)

Q: Can MAX981ESA+ be used as a direct replacement for MAX981ESA?

A: Yes. The MAX981ESA+ is the active production equivalent with identical electrical specifications and 8-SOIC package configuration. No design modifications are required for direct substitution.

Q: What are the key differences between MAX981ESA and MIC833YM5-TR?

A: The primary differences are package type and supply voltage range. The MAX981ESA uses 8-SOIC packaging with a supply voltage range of 2.5V ~ 11V (±1.25V ~ 5.5V), while the MIC833YM5-TR uses SOT-23-5 packaging with a narrower supply voltage range of 1.5V ~ 5.5V. Both maintain identical operating temperature range (-40°C ~ 85°C) and single-element comparator with voltage reference functionality.

Q: Is the MIC833YM5-TR suitable for all MAX981ESA applications?

A: The MIC833YM5-TR is suitable only for applications where the supply voltage range of 1.5V ~ 5.5V is compatible with the design requirements. Applications requiring supply voltages above 5.5V or below 1.5V cannot use the MIC833YM5-TR. Additionally, PCB layout must accommodate the SOT-23-5 package footprint.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both MAX981ESA+ and MIC833YM5-TR are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH unaffected status.

Q: What is the inventory status of substitute parts?

A: MAX981ESA+ has 1157 pcs in stock. MIC833YM5-TR has 4541 pcs in stock. The original MAX981ESA (obsolete) has 835 pcs remaining in inventory.