MAX942MSA/PR+ Equivalent & Substitute Parts

Part Overview

The MAX942MSA/PR+ is a dual-channel general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated. This linear integrated circuit operates as a CMOS, push-pull, rail-to-rail comparator with TTL-compatible output, housed in an 8-SOIC surface-mount package. The device is actively produced and widely used in signal conditioning, threshold detection, and analog-to-digital interface applications. Equivalent and substitute parts are identified based on matching functional specifications, electrical performance parameters, and package compatibility to ensure direct replacement capability in existing designs.

Substiute Parts

MAX942MSA/PR+

Analog Devices Inc./Maxim IntegratedIn Stock: 987MAX942MSA/PR+ Datasheet

Current PartRFQ

MAX942MSA/PR+

Analog Devices Inc./Maxim IntegratedIn Stock: 987MAX942MSA/PR+ Datasheet

DirectRFQ

MCP6562T-E/SN

Microchip TechnologyIn Stock: 3662MCP6562T-E/SN Datasheet

SimilarRFQ

TS3022IDT

STMicroelectronicsIn Stock: 25145TS3022IDT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX942MSA/PR+ are identified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Dual-channel comparator configuration (2 elements)
• 8-SOIC surface-mount package with identical 0.154" (3.90mm) width
• CMOS output with push-pull capability
• Supply voltage range compatibility (minimum 2.7V operation required)
• Operating temperature range overlap (-55°C to 125°C preferred)
• General-purpose comparator classification
• Active product status with current manufacturing

Secondary Compatibility Parameters:

• Input offset voltage performance
• Input bias current specifications
• Quiescent current consumption
• Propagation delay characteristics
• CMRR and PSRR performance metrics

The identified substitutes meet the primary criteria for direct replacement while offering variations in secondary performance parameters that may provide advantages in specific application contexts.

Parameter Comparison

Engineering Selection Recommendations

All three parts—MAX942MSA/PR+, MCP6562T-E/SN, and TS3022IDT—maintain active product status with current manufacturing support. Each device is ROHS3 compliant and carries MSL rating 1, indicating unlimited moisture sensitivity protection and environmental compliance suitable for industrial and commercial applications.

MAX942MSA/PR+ serves as the reference device with established design history and the widest operating temperature range (-55°C to 125°C), making it suitable for extended-temperature applications. Its specified performance parameters establish the baseline for substitution evaluation.

MCP6562T-E/SN (Microchip Technology) provides superior electrical performance across multiple parameters: lower input bias current (1pA vs. 0.4µA), reduced quiescent current (130µA vs. 600µA), faster propagation delay (80ns vs. 200ns), and higher CMRR/PSRR values (66dB/70dB vs. 36.06dB). The extended lower supply voltage limit (1.8V vs. 2.7V) enables operation in low-power applications. Operating temperature range is -40°C to 125°C.

TS3022IDT (STMicroelectronics) offers the lowest quiescent current (90µA) and fastest propagation delay (105ns) among the three options, with the highest CMRR specification (79dB). Supply voltage range is 1.8V to 5V, and operating temperature range is -40°C to 125°C. Output type is specified as push-pull without explicit rail-to-rail or TTL designation.

Selection between these parts depends on application-specific requirements: temperature range constraints, power consumption budgets, speed requirements, and supply voltage availability.

Frequently Asked Questions (FAQ)

Q: Can MCP6562T-E/SN directly replace MAX942MSA/PR+ in existing designs?

A: Yes, for applications operating within the overlapping supply voltage range (2.7V to 5.5V) and temperature range (-40°C to 125°C). The MCP6562T-E/SN offers superior performance in quiescent current, propagation delay, and input bias current. Designs requiring operation below -40°C must retain the MAX942MSA/PR+.

Q: What are the key differences between TS3022IDT and MAX942MSA/PR+?

A: Both devices share identical 8-SOIC packaging and dual-channel configuration. TS3022IDT provides lower quiescent current (90µA vs. 600µA), faster propagation delay (105ns vs. 200ns), and higher CMRR (79dB vs. 36.06dB). TS3022IDT operates at 1.8V minimum supply voltage and -40°C minimum temperature, compared to MAX942MSA/PR+ specifications of 2.7V and -55°C respectively.

Q: Are all three parts pin-compatible?

A: Yes. All three devices are housed in 8-SOIC packages with identical 0.154" (3.90mm) width and surface-mount configuration, ensuring mechanical and electrical pin compatibility for PCB layout purposes.

Q: Which substitute offers the lowest power consumption?

A: TS3022IDT provides the lowest quiescent current specification at 90µA maximum, followed by MCP6562T-E/SN at 130µA, compared to MAX942MSA/PR+ at 600µA.

Q: Do all parts meet the same environmental compliance standards?

A: Yes. MAX942MSA/PR+, MCP6562T-E/SN, and TS3022IDT are all ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity protection), REACH unaffected status, and identical ECCN and HTSUS classifications.

Q: What is the primary reason to substitute MAX942MSA/PR+?

A: Substitution is driven by component availability, cost optimization, or performance enhancement requirements. MCP6562T-E/SN and TS3022IDT offer superior electrical characteristics including lower power consumption, faster response times, and better noise rejection, while maintaining package and functional compatibility.