MAX997ESA-T Equivalent & Substitute Parts

Part Overview

The MAX997ESA-T is a general-purpose CMOS/TTL comparator manufactured by Analog Devices Inc./Maxim Integrated, packaged in 8-SOIC surface mount configuration. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The MAX997ESA-T operates across a 2.7V to 5.5V supply range with a single comparator element and TTL/CMOS output capability.

Substiute Parts

MAX997ESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1514MAX997ESA-T Datasheet

Current PartRFQ

MAX997ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 798MAX997ESA+T Datasheet

DirectRFQ

LMV762MMX/NOPB

Texas InstrumentsIn Stock: 20349LMV762MMX/NOPB Datasheet

MFR RecommendedRFQ

LMV762QMM/NOPB

Texas InstrumentsIn Stock: 31120LMV762QMM/NOPB Datasheet

MFR RecommendedRFQ

LMV762QMMX/NOPB

Texas InstrumentsIn Stock: 29124LMV762QMMX/NOPB Datasheet

MFR RecommendedRFQ

TC75S56FUTE85LF

Toshiba Semiconductor and StorageIn Stock: 44536TC75S56FUTE85LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX997ESA-T is determined by the following critical parameters:

Primary Substitution Criteria:

• Supply voltage range compatibility (minimum 2.7V ~ 5.5V overlap required)
• Output type (CMOS/TTL or Push-Pull acceptable for logic-level applications)
• Package type (8-pin surface mount configurations)
• Operating temperature range (-40°C ~ 85°C minimum)
• General-purpose comparator functionality

Substitute Categories:

Direct Equivalent (Packaging Variant): MAX997ESA+T maintains identical electrical specifications and 8-SOIC packaging, differing only in tape & reel packaging format. This represents a direct one-to-one replacement.

Cross-Manufacturer Substitutes (Functional Equivalents): LMV762 series devices (LMV762MMX/NOPB, LMV762QMM/NOPB, LMV762QMMX/NOPB) provide general-purpose comparator functionality with compatible supply voltage ranges and surface mount packaging. These devices feature dual comparator elements and push-pull output configuration, suitable for applications where the MAX997ESA-T output characteristics are acceptable.

Alternative Topology: TC75S56FUTE85LF offers single-element comparator functionality in a smaller 5-SSOP package with extended supply voltage range (1.8V ~ 7V, ±0.9V ~ 4.6V) and push-pull output, providing an alternative for space-constrained designs.

Parameter Comparison

Engineering Selection Recommendations

MAX997ESA+T: This is the recommended primary substitute. It maintains identical electrical specifications and operating characteristics to the MAX997ESA-T while offering active product status from the same manufacturer. The only difference is packaging format (tape & reel versus tube), making this a direct replacement for production environments.

LMV762 Series (LMV762MMX/NOPB, LMV762QMM/NOPB, LMV762QMMX/NOPB): These Texas Instruments devices are suitable substitutes for applications where dual comparator functionality can be utilized or where only one comparator element is required. All three variants maintain ROHS3 compliance and MSL 1 rating. The LMV762QMM/NOPB and LMV762QMMX/NOPB variants include AEC-Q100 automotive qualification, appropriate for automotive-grade applications. Supply voltage compatibility spans 2.7V to 5V, which overlaps the MAX997ESA-T operating range. Package footprint differs (8-TSSOP/MSOP versus 8-SOIC), requiring PCB layout modification.

TC75S56FUTE85LF: This Toshiba device provides single-element comparator functionality with extended supply voltage range (1.8V ~ 7V, ±0.9V ~ 4.6V) and significantly lower quiescent current (20µA versus 6.5mA). The 5-SSOP package is smaller than the 8-SOIC, suitable for space-constrained applications. Propagation delay is longer (680ns versus 7ns), making this option appropriate only for non-time-critical applications. All devices maintain ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can MAX997ESA+T be used as a direct replacement for MAX997ESA-T?

A: Yes. MAX997ESA+T is electrically and functionally identical to MAX997ESA-T. The difference is packaging format (tape & reel versus tube). No circuit modifications are required.

Q: What are the key differences between MAX997ESA-T and LMV762 series devices?

A: LMV762 series devices contain two comparator elements versus one in the MAX997ESA-T. Output type differs (push-pull versus CMOS/TTL). Propagation delay is significantly longer (225ns versus 7ns). Package footprint is smaller (8-TSSOP/MSOP versus 8-SOIC). Supply voltage range is slightly narrower (2.7V ~ 5V versus 2.7V ~ 5.5V). Input offset voltage is lower (0.2mV versus 1.5mV for LMV762MMX/NOPB).

Q: Is TC75S56FUTE85LF suitable for high-speed applications?

A: No. TC75S56FUTE85LF has a maximum propagation delay of 680ns, significantly longer than the MAX997ESA-T (7ns). This device is appropriate only for applications where propagation delay is not a critical parameter.

Q: Do all substitute parts require PCB layout changes?

A: MAX997ESA+T requires no layout changes. LMV762 series devices require layout modification due to different package footprint (8-TSSOP/MSOP versus 8-SOIC). TC75S56FUTE85LF requires layout modification due to smaller 5-SSOP package and different pin configuration.

Q: Are automotive-qualified versions available?

A: Yes. LMV762QMM/NOPB and LMV762QMMX/NOPB are AEC-Q100 qualified for automotive applications. MAX997ESA+T and TC75S56FUTE85LF do not carry automotive qualification.

Q: What is the supply voltage compatibility range for all substitutes?

A: MAX997ESA-T and MAX997ESA+T operate at 2.7V ~ 5.5V. LMV762 series devices operate at 2.7V ~ 5V. TC75S56FUTE85LF operates at 1.8V ~ 7V or ±0.9V ~ 4.6V. All devices are compatible with standard 5V and 3.3V supply systems.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the MAX997ESA-T specifications.