MAX987ESA Equivalent & Substitute Parts

Part Overview

The MAX987ESA is a general-purpose CMOS comparator with push-pull, rail-to-rail, and TTL output capabilities, manufactured by Analog Devices Inc./Maxim Integrated in an 8-SOIC surface mount package. The device operates across a supply voltage range of 2.5V to 5.5V (single supply) or ±1.25V to 2.75V (dual supply), with a maximum input offset voltage of 5mV and propagation delay of 210ns.

The MAX987ESA is classified as obsolete, which necessitates identification of equivalent and substitute parts for new designs or production continuity. Active alternatives with compatible electrical and mechanical specifications are available to ensure design flexibility and supply chain resilience.

Substiute Parts

MAX987ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 1081MAX987ESA Datasheet

Current PartRFQ

MAX987ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 864MAX987ESA+ Datasheet

DirectRFQ

LMV7219M5

National SemiconductorIn Stock: 1406LMV7219M5 Datasheet

MFR RecommendedRFQ

LMV7219M5X/NOPB

National SemiconductorIn Stock: 41205LMV7219M5X/NOPB Datasheet

MFR RecommendedRFQ

LMV7219M7/NOPB

Texas InstrumentsIn Stock: 25216LMV7219M7/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX987ESA is determined by the following critical parameters:

• Output Type: CMOS, Push-Pull, Rail-to-Rail, TTL capability
• Supply Voltage Range: Minimum 2.5V to 5.5V single supply compatibility
• Input Offset Voltage: Maximum 5mV specification
• Propagation Delay: Maximum 210ns specification
• Package Type: 8-SOIC surface mount form factor
• Operating Temperature Range: -40°C to 85°C
• Number of Elements: Single comparator configuration

Substitute parts are grouped into two categories:

Direct Package Equivalent (8-SOIC): MAX987ESA+ maintains identical package, pinout, and electrical specifications with active product status and improved RoHS compliance.

Functional Equivalents (Alternative Packages): LMV7219 series devices (LMV7219M5, LMV7219M5X/NOPB, LMV7219M7/NOPB) provide compatible electrical performance with different package options (SOT-23-5, SC-70-5). These devices meet or exceed the electrical requirements of the MAX987ESA while offering alternative form factors for design flexibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible, Same Package):

MAX987ESA+ is the primary recommendation for direct substitution. It maintains identical electrical specifications, 8-SOIC package configuration, and pinout compatibility with the obsolete MAX987ESA. The MAX987ESA+ carries active product status and ROHS3 compliance, providing improved regulatory alignment for new production and long-term supply availability.

For Functional Equivalence (Alternative Packages):

The LMV7219 series (LMV7219M5, LMV7219M5X/NOPB, LMV7219M7/NOPB) provides functional equivalence with superior electrical performance characteristics. These devices feature faster propagation delay (20ns versus 210ns), higher CMRR and PSRR (85dB versus 80dB), and active product status across multiple manufacturers. Package selection depends on PCB layout constraints:

• LMV7219M5X/NOPB: SOT-23-5 package, highest inventory availability
• LMV7219M7/NOPB: SC-70-5 package, ROHS3 compliant

All substitute parts maintain the -40°C to 85°C operating temperature range and surface mount mounting type required for the MAX987ESA application.

Frequently Asked Questions (FAQ)

Q: Can MAX987ESA+ be used as a direct replacement for MAX987ESA?

A: Yes. MAX987ESA+ is electrically and mechanically identical to MAX987ESA, with identical 8-SOIC package, pinout, and electrical specifications. The primary difference is active product status and ROHS3 compliance. No PCB modifications are required.

Q: What are the key differences between MAX987ESA and LMV7219 series substitutes?

A: The LMV7219 series offers faster propagation delay (20ns versus 210ns) and higher CMRR/PSRR performance (85dB versus 80dB). However, LMV7219 devices use different package options (SOT-23-5 or SC-70-5) rather than 8-SOIC, requiring PCB layout changes. Supply voltage range is slightly narrower (2.7V to 5V versus 2.5V to 5.5V).

Q: Are LMV7219 devices suitable for applications requiring the exact MAX987ESA electrical performance?

A: LMV7219 devices meet or exceed MAX987ESA electrical specifications. The faster propagation delay and improved CMRR/PSRR make them suitable for most applications. However, if the design specifically requires 210ns propagation delay or the 2.5V minimum supply voltage, MAX987ESA+ is the appropriate choice.

Q: What packaging options are available for LMV7219 substitutes?

A: LMV7219M5X/NOPB uses SOT-23-5 (SC-74A) package with 41,100 units in stock. LMV7219M7/NOPB uses SC-70-5 (5-TSSOP) package with 25,200 units in stock. Both are surface mount configurations with different footprints from the 8-SOIC MAX987ESA.

Q: Which substitute part has the best supply availability?

A: LMV7219M5X/NOPB has the highest inventory (41,100 pcs), followed by LMV7219M7/NOPB (25,200 pcs) and MAX987ESA+ (831 pcs).

Q: Are all substitute parts RoHS compliant?

A: MAX987ESA+ and LMV7219M7/NOPB are ROHS3 compliant. LMV7219M5 and LMV7219M5X/NOPB RoHS status is not specified in available documentation.