MAX994ESD+ Equivalent & Substitute Parts

Part Overview

The MAX994ESD+ is a general-purpose CMOS comparator manufactured by Analog Devices Inc./Maxim Integrated. This 4-element comparator features open-drain, rail-to-rail output architecture with TTL compatibility, designed for precision signal comparison applications across a wide supply voltage range. The device is currently in active production status with robust inventory availability (1161 pcs new original in stock). Alternative part identification becomes necessary for supply chain continuity, design flexibility, or regional component availability requirements.

Substiute Parts

MAX994ESD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1181MAX994ESD+ Datasheet

Current PartRFQ

MAX994ESD+

Analog Devices Inc./Maxim IntegratedIn Stock: 1181MAX994ESD+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX994ESD+ is determined by strict equivalence across the following critical parameters:

• Functional architecture: 4-element general-purpose comparator
• Output configuration: CMOS, open-drain, rail-to-rail, TTL-compatible
• Supply voltage compatibility: 2.5V ~ 5.5V single supply or ±1.25V ~ 2.75V dual supply
• Electrical performance: Input offset voltage ≤ 5mV @ 5.5V, input bias current ≤ 1pA @ 5.5V, propagation delay ≤ 450ns
• Package specification: 14-SOIC surface mount form factor
• Compliance requirements: ROHS3 compliant, MSL Level 1

Parts meeting all these criteria are classified as direct equivalents. The MAX994ESD+ itself represents the primary reference specification for this substitution group.

Parameter Comparison

Engineering Selection Recommendations

Component selection for the MAX994ESD+ should prioritize the following criteria:

• Product Status: Verify active production status to ensure long-term availability and supply chain stability.
• Compliance Certification: Confirm ROHS3 compliance and MSL Level 1 rating for environmental and handling requirements.
• Inventory Verification: The MAX994ESD+ maintains 1161 pcs new original stock, supporting immediate procurement requirements.
• Package Integrity: Confirm 14-SOIC surface mount package specification matches PCB design and assembly capabilities.
• Electrical Performance Validation: Ensure specified input offset voltage, bias current, and propagation delay parameters align with circuit timing and precision requirements.

Frequently Asked Questions (FAQ)

Q: What defines a direct equivalent for the MAX994ESD+? A: A direct equivalent must match all critical specifications: 4-element general-purpose comparator architecture, CMOS open-drain rail-to-rail TTL output, 2.5V ~ 5.5V or ±1.25V ~ 2.75V supply voltage range, 14-SOIC surface mount package, and ROHS3 compliance. Electrical parameters including input offset voltage, bias current, and propagation delay must remain within specified limits.

Q: Can the MAX994ESD+ be substituted with different package variants? A: Package substitution is not supported. The MAX994ESD+ is specified for 14-SOIC (0.154", 3.90mm width) surface mount configuration. Alternative package types require complete circuit redesign and PCB layout modification.

Q: What is the significance of the MSL Level 1 rating? A: MSL Level 1 indicates unlimited shelf life without moisture bake-out requirements. This classification simplifies component storage, handling, and procurement logistics without imposing time-sensitive storage constraints.

Q: How does the ±3mV hysteresis specification affect circuit design? A: The ±3mV hysteresis provides inherent noise immunity and prevents oscillation around the comparison threshold. This specification must be considered when designing circuits with low-level input signals or high-impedance sources.

Q: Is the MAX994ESD+ suitable for both single and dual supply applications? A: Yes. The device supports single supply operation (2.5V ~ 5.5V) and dual supply operation (±1.25V ~ 2.75V), providing design flexibility across different power distribution architectures.