MAX972CSA Equivalent & Substitute Parts

Part Overview

The MAX972CSA is a dual-channel general-purpose comparator with integrated voltage reference and open-drain output configuration, housed in an 8-SOIC surface-mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The MAX972CSA operates across a wide supply voltage range (2.5V to 11V single supply, ±1.25V to ±5.5V dual supply) and is suitable for precision voltage comparison and threshold detection circuits.

Substiute Parts

MAX972CSA

Analog Devices Inc./Maxim IntegratedIn Stock: 2266MAX972CSA Datasheet

Current PartRFQ

MAX972CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2004MAX972CSA+ Datasheet

DirectRFQ

LTC1441CS8#TRPBF

Analog Devices Inc.In Stock: 890LTC1441CS8#TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX972CSA is determined by the following critical parameters:

• Dual-channel comparator architecture with 2 independent comparison elements
• Open-drain output configuration for direct logic-level interfacing
• Integrated voltage reference functionality
• Supply voltage compatibility: 2.5V to 11V (single) or ±1.25V to ±5.5V (dual)
• Input offset voltage specification: 10mV maximum at 5V
• Common-mode and power-supply rejection: 80dB minimum
• 8-SOIC surface-mount package with 0.154" width (3.90mm)
• ROHS3 compliance and MSL Level 1 rating

Substitute parts must maintain electrical equivalence across these parameters to ensure direct replacement capability in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

MAX972CSA+ (Direct Substitute)

The MAX972CSA+ is the primary equivalent for the obsolete MAX972CSA. Both devices share identical electrical specifications, including open-drain output configuration, supply voltage ranges, input offset voltage, and rejection ratios. The MAX972CSA+ is currently in active production status with ROHS3 compliance and MSL Level 1 rating. This part provides direct functional and pin-compatible replacement with no circuit modifications required.

LTC1441CS8#TRPBF (Alternative Substitute)

The LTC1441CS8#TRPBF is an alternative comparator from Analog Devices with dual-channel architecture and equivalent precision specifications. Key differences include CMOS/TTL output configuration (versus open-drain), slightly lower minimum single-supply voltage (2V versus 2.5V), and specified propagation delay of 15µs. This device maintains ROHS3 compliance and active product status. Circuit design modifications may be necessary to accommodate the different output stage configuration.

Both substitute parts are manufactured by Analog Devices Inc., ensuring consistent quality and reliability standards. Selection between MAX972CSA+ and LTC1441CS8#TRPBF depends on output stage requirements and circuit-level compatibility with CMOS/TTL versus open-drain logic interfaces.

Frequently Asked Questions (FAQ)

Q: Can MAX972CSA+ be used as a direct replacement for MAX972CSA?

A: Yes. The MAX972CSA+ is electrically and functionally equivalent to the MAX972CSA across all specified parameters. Both devices feature identical supply voltage ranges, input offset voltage, rejection ratios, and 8-SOIC packaging. No circuit modifications are required for direct substitution.

Q: What is the primary difference between MAX972CSA+ and LTC1441CS8#TRPBF?

A: The output stage configuration differs. MAX972CSA+ provides open-drain output, while LTC1441CS8#TRPBF offers CMOS/TTL output. Both maintain equivalent precision specifications (10mV input offset, 80dB rejection ratios) and operate across compatible supply voltage ranges. Circuit design must account for the output stage difference.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both MAX972CSA+ and LTC1441CS8#TRPBF are ROHS3 compliant with MSL Level 1 moisture sensitivity rating, meeting current environmental and regulatory requirements.

Q: Can LTC1441CS8#TRPBF replace MAX972CSA in all applications?

A: Functional replacement is possible for applications where CMOS/TTL output is compatible with the circuit design. The LTC1441CS8#TRPBF operates across a slightly lower minimum single-supply voltage (2V versus 2.5V) and includes specified propagation delay characteristics. Verify output stage compatibility and timing requirements before substitution.

Q: What packaging formats are available for substitute parts?

A: MAX972CSA+ is available in Tube packaging, while LTC1441CS8#TRPBF is supplied in Tape & Reel format. Both maintain the 8-SOIC surface-mount package configuration with 0.154" width (3.90mm) for PCB compatibility.