MAX972EPA Equivalent & Substitute Parts

Part Overview

The MAX972EPA is a dual general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-DIP through-hole package. This device features open-drain output configuration and operates across a wide supply voltage range of 2.5V to 11V (single supply) or ±1.25V to ±5.5V (dual supply). The MAX972EPA is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

MAX972EPA

Analog Devices Inc./Maxim IntegratedIn Stock: 1039MAX972EPA Datasheet

Current PartRFQ

MAX972EPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 867MAX972EPA+ Datasheet

DirectRFQ

LTC1441CN8#PBF

Analog Devices Inc.In Stock: 804LTC1441CN8#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX972EPA is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-DIP (0.300", 7.62mm) through-hole package to ensure direct PCB compatibility without layout modifications.

Electrical Specifications: Substitute parts must maintain compatibility across the following ranges:

• Supply voltage range: 2.5V ~ 11V (single supply) or ±1.25V ~ ±5.5V (dual supply)
• Input offset voltage: 10mV @ 5V maximum
• CMRR and PSRR: 80dB minimum
• Operating temperature: -40°C ~ 85°C

Output Configuration: The MAX972EPA uses open-drain output. Substitutes with alternative output types (CMOS, TTL) may be used only when the application circuit includes appropriate pull-up resistors and can tolerate different output impedance characteristics.

Number of Elements: All substitutes must contain exactly 2 comparator elements.

Compliance: All substitute parts must maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating.

Parameter Comparison

Engineering Selection Recommendations

MAX972EPA+ (Direct Substitute): This part is the primary equivalent for the obsolete MAX972EPA. It maintains identical electrical specifications, package configuration, and output type. The MAX972EPA+ is currently in active production status, ensuring long-term availability. Both parts share the same base product number (MAX972) and are fully pin-compatible. This substitute is recommended for direct replacement in existing designs without circuit modifications.

LTC1441CN8#PBF (Manufacturer-Recommended Alternative): This part is designated as the manufacturer-recommended substitute and is also in active production. It provides functional equivalence with the following considerations: the LTC1441CN8#PBF uses CMOS/TTL output instead of open-drain, requiring circuit-level evaluation to confirm compatibility with existing pull-up resistor networks. The operating temperature range is narrower (0°C ~ 70°C versus -40°C ~ 85°C), which may limit use in extended temperature applications. The supply voltage range is slightly reduced at the lower end (2V minimum versus 2.5V). Quiescent current is marginally higher at 5.7µA. This substitute is suitable for applications where the output type change and temperature range reduction do not present design constraints.

Frequently Asked Questions (FAQ)

Q: Can MAX972EPA+ be used as a direct replacement for MAX972EPA?

A: Yes. The MAX972EPA+ is a direct pin-for-pin and functionally equivalent substitute. It maintains identical electrical specifications, package dimensions, and output configuration. No circuit modifications are required.

Q: What is the key difference between MAX972EPA+ and LTC1441CN8#PBF?

A: The primary difference is output type. MAX972EPA+ uses open-drain output, while LTC1441CN8#PBF uses CMOS/TTL output. Additionally, LTC1441CN8#PBF has a narrower operating temperature range (0°C ~ 70°C) and slightly higher quiescent current (5.7µA versus 4µA).

Q: Can LTC1441CN8#PBF replace MAX972EPA in all applications?

A: LTC1441CN8#PBF is functionally equivalent for most general-purpose comparator applications. However, applications requiring operation below 0°C or above 70°C must use MAX972EPA or MAX972EPA+. Applications with strict quiescent current budgets should account for the 1.7µA increase. The output type change requires circuit verification to ensure pull-up resistor networks are compatible.

Q: Are all substitute parts available in the same package?

A: Yes. All listed substitutes use the 8-DIP (0.300", 7.62mm) through-hole package, ensuring mechanical and electrical compatibility without PCB layout changes.

Q: What is the moisture sensitivity level for these parts?

A: All parts listed maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control requirements during storage or handling.

Q: Are these parts RoHS compliant?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.