MAX972ESA-T Equivalent & Substitute Parts

Part Overview

The MAX972ESA-T 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 comparator 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 monitoring and signal conditioning circuits.

Substiute Parts

MAX972ESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 739MAX972ESA-T Datasheet

Current PartRFQ

MAX972ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3711MAX972ESA+T Datasheet

DirectRFQ

LTC1441CS8#TRPBF

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX972ESA-T is determined by the following critical parameters:

Primary Substitution Criteria:

• Package type: 8-SOIC surface-mount configuration
• Number of comparator elements: 2 channels
• Supply voltage compatibility: Overlapping operational ranges
• Input offset voltage specification: Maximum 10mV @ 5V
• Common-mode and power-supply rejection ratios: 80dB minimum
• Operating temperature range: Minimum coverage of -40°C to 85°C
• RoHS3 compliance status

Identified Substitute Parts:

1. MAX972ESA+T (Direct Packaging Variant) - Identical electrical specifications with Tape & Reel packaging; Active product status
2. LTC1441CS8#TRPBF (Functional Equivalent) - Dual-channel comparator with CMOS/TTL output; Active product status; extended supply voltage range; different output configuration

Parameter Comparison

Engineering Selection Recommendations

MAX972ESA+T is the primary substitute for MAX972ESA-T. Both devices share identical electrical specifications, supply voltage ranges, and thermal operating limits. The MAX972ESA+T maintains Active product status and ROHS3 compliance, providing long-term availability and regulatory alignment. The only distinction is packaging format (Tape & Reel versus tube), which does not affect electrical performance or PCB-level compatibility.

LTC1441CS8#TRPBF serves as a functional alternative when output stage configuration differences are acceptable. This device provides equivalent precision (10mV input offset), identical CMRR/PSRR performance, and maintains the 8-SOIC package footprint. Key differences include CMOS/TTL output configuration (versus open-drain), slightly higher quiescent current (5.7µA versus 4µA), and a narrower operating temperature range (0°C to 70°C versus -40°C to 85°C). The LTC1441CS8#TRPBF is suitable for applications where the extended low-temperature operation of the MAX972ESA-T is not required and CMOS/TTL output levels are compatible with downstream circuitry.

Both substitute parts maintain ROHS3 compliance and are manufactured by Analog Devices Inc., ensuring regulatory consistency and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can MAX972ESA+T be used as a direct replacement for MAX972ESA-T?

A: Yes. MAX972ESA+T is electrically and functionally identical to MAX972ESA-T. Both devices feature the same supply voltage ranges, input offset voltage specification, quiescent current, and operating temperature limits. The difference is packaging format (Tape & Reel versus tube). PCB layout and schematic integration remain unchanged.

Q: What are the key differences between MAX972ESA-T and LTC1441CS8#TRPBF?

A: The primary differences are output stage configuration and operating temperature range. MAX972ESA-T provides open-drain output suitable for active-high logic interfacing, while LTC1441CS8#TRPBF provides CMOS/TTL output. MAX972ESA-T operates from -40°C to 85°C; LTC1441CS8#TRPBF operates from 0°C to 70°C. Both maintain identical input offset voltage (10mV @ 5V) and CMRR/PSRR performance (80dB).

Q: Is the 8-SOIC package footprint identical across all three parts?

A: Yes. MAX972ESA-T, MAX972ESA+T, and LTC1441CS8#TRPBF all use the 8-SOIC package with 0.154" (3.90mm) width. PCB footprints are mechanically compatible without modification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. MAX972ESA+T and LTC1441CS8#TRPBF both maintain ROHS3 compliance status, matching the regulatory requirements of the obsolete MAX972ESA-T.

Q: Which substitute should be selected for low-temperature applications below 0°C?

A: MAX972ESA+T is the appropriate choice for applications requiring operation below 0°C, as it maintains the -40°C to 85°C operating range of the original MAX972ESA-T. LTC1441CS8#TRPBF is limited to 0°C to 70°C and is not suitable for extended low-temperature operation.

Q: Can LTC1441CS8#TRPBF be used in circuits designed for open-drain output?

A: LTC1441CS8#TRPBF provides CMOS/TTL output configuration, not open-drain. Circuit redesign may be required if the original design relies on open-drain output characteristics (such as wired-OR logic or pull-up resistor configurations). MAX972ESA+T maintains open-drain output compatibility with the original MAX972ESA-T design.