MAX9109ESA Equivalent & Substitute Parts

Part Overview

The MAX9109ESA is a single-channel comparator with integrated latch functionality, designed for TTL-level output applications. This device operates from a 4.5V to 5.5V single supply and is packaged in an 8-SOIC surface-mount configuration. The MAX9109ESA is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity. The MAX9109ESA+ serves as the direct active substitute, maintaining identical electrical specifications while offering current availability.

Substiute Parts

MAX9109ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 24941MAX9109ESA Datasheet

Current PartRFQ

MAX9109ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2259MAX9109ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX9109ESA is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute relationship is based on:

• Identical supply voltage range (4.5V ~ 5.5V)
• Matching output type (TTL)
• Identical input offset voltage specification (1.6mV @ 5V)
• Matching input bias current (0.125µA @ 5V)
• Identical quiescent current rating (700µA)
• Matching propagation delay (25ns maximum)
• Identical hysteresis specification (2mV)
• Identical operating temperature range (-40°C ~ 85°C)
• Identical package and pinout (8-SOIC)
• Matching RoHS compliance status (ROHS3 Compliant)
• Identical MSL rating (1 - Unlimited)

The MAX9109ESA+ is a direct substitute that maintains all electrical and mechanical specifications while offering active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The MAX9109ESA+ is the direct equivalent for the obsolete MAX9109ESA. Both parts maintain identical electrical performance specifications and are packaged in the same 8-SOIC surface-mount configuration. The primary distinction is product status: the MAX9109ESA is obsolete while the MAX9109ESA+ is active and currently manufactured.

For new designs and production applications requiring the MAX9109ESA, the MAX9109ESA+ should be selected. Both parts carry ROHS3 compliance and identical MSL ratings, ensuring compatibility with modern manufacturing and environmental standards. The electrical characteristics—including supply voltage range, input offset voltage, propagation delay, and hysteresis—are identical across both parts, permitting direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the MAX9109ESA+ be used as a direct replacement for the MAX9109ESA?

A: Yes. The MAX9109ESA+ is electrically and mechanically identical to the MAX9109ESA. All electrical specifications, operating ranges, and package dimensions are equivalent. The primary difference is product status: the MAX9109ESA is obsolete while the MAX9109ESA+ is active.

Q: Are there any differences in the 8-SOIC package between these parts?

A: No. Both parts use the identical 8-SOIC package with 0.154" (3.90mm) width. Pinout, lead spacing, and mounting requirements are identical, permitting direct PCB compatibility.

Q: What is the significance of the packaging difference (Tube vs. unspecified)?

A: The MAX9109ESA+ is supplied in Tube packaging, which is standard for active production parts. This does not affect electrical performance or PCB-level compatibility. Packaging format is a supply-chain consideration only.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the MAX9109ESA and MAX9109ESA+ are ROHS3 compliant with identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited). Both carry the same ECCN (EAR99) and HTSUS classifications.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is based on matching supply voltage (4.5V ~ 5.5V), output type (TTL), input offset voltage (1.6mV @ 5V), input bias current (0.125µA @ 5V), quiescent current (700µA), propagation delay (25ns), hysteresis (2mV), and operating temperature range (-40°C ~ 85°C).