MAX4412EXK-T Equivalent & Substitute Parts

Part Overview

The MAX4412EXK-T is a voltage feedback amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed as a single-circuit rail-to-rail operational amplifier in SC-70-5 surface mount packaging. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and production continuity. The part operates across a 2.7V to 5.5V supply range with a 500 MHz bandwidth and 220V/µs slew rate, suitable for high-speed signal conditioning applications.

Substiute Parts

MAX4412EXK-T

Analog Devices Inc./Maxim IntegratedIn Stock: 2975MAX4412EXK-T Datasheet

Current PartRFQ

MAX4412EXK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2812MAX4412EXK+T Datasheet

DirectRFQ

OPA349SA/3K

Texas InstrumentsIn Stock: 50321OPA349SA/3K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4412EXK-T is determined by the following critical parameters:

Primary Compatibility Criteria:

• Package / Case: 5-TSSOP, SC-70-5, SOT-353 (physical and electrical pin compatibility)
• Output Type: Rail-to-Rail (functional requirement)
• Number of Circuits: 1 (functional requirement)
• Voltage - Supply Span: Minimum 2.7V, Maximum 5.5V (operational envelope)
• Mounting Type: Surface Mount (assembly compatibility)

Secondary Performance Criteria:

• Slew Rate: 220V/µs or greater (signal fidelity)
• -3dB Bandwidth: 500 MHz or greater (frequency response)
• Current - Output / Channel: 75 mA or greater (load driving capability)

The identified substitute parts meet the primary compatibility criteria and maintain functional equivalence within the specified electrical operating envelope.

Parameter Comparison

Engineering Selection Recommendations

MAX4412EXK+T (Direct Substitute - Recommended for Primary Selection)

The MAX4412EXK+T is the direct equivalent of the MAX4412EXK-T from the same manufacturer. Both parts share identical electrical specifications, package configuration, and pin assignment. The MAX4412EXK+T is currently in active production status, ensuring long-term availability and supply chain continuity. This part achieves ROHS3 compliance and is supplied in Tape & Reel packaging, meeting modern manufacturing and environmental standards. The primary difference is packaging format (Tape & Reel versus Tube) and product status (Active versus Obsolete). For applications requiring the exact electrical performance profile of the original MAX4412EXK-T, the MAX4412EXK+T provides seamless substitution without circuit redesign.

OPA349SA/3K (Alternative Substitute - Conditional Selection)

The OPA349SA/3K from Texas Instruments meets the primary compatibility criteria of package type, rail-to-rail output, and single-circuit configuration. However, this part exhibits significantly different performance characteristics. The OPA349SA/3K operates at substantially lower slew rate (0.02V/µs versus 220V/µs), lower bandwidth (70 kHz gain-bandwidth product versus 500 MHz), and reduced output current capability (8 mA versus 75 mA). The OPA349SA/3K is classified as a general-purpose amplifier rather than a voltage feedback amplifier, and its operating temperature range is limited to 0°C to 70°C, narrower than the MAX4412EXK-T specification of -40°C to 85°C. This part is suitable only for low-frequency, low-speed applications where the reduced performance envelope is acceptable. The OPA349SA/3K achieves ROHS3 compliance and maintains active production status.

Frequently Asked Questions (FAQ)

Q: Can MAX4412EXK+T be used as a direct replacement for MAX4412EXK-T?

A: Yes. The MAX4412EXK+T is electrically and functionally identical to the MAX4412EXK-T. Both parts share the same pin configuration, electrical specifications, and performance characteristics. The primary differences are product status (Active versus Obsolete) and packaging format (Tape & Reel versus Tube). No circuit modifications are required for substitution.

Q: What are the key differences between MAX4412EXK+T and OPA349SA/3K?

A: The MAX4412EXK+T and OPA349SA/3K differ significantly in performance specifications. The MAX4412EXK+T provides 220V/µs slew rate and 500 MHz bandwidth, while the OPA349SA/3K operates at 0.02V/µs slew rate and 70 kHz bandwidth. Output current capability differs substantially: 75 mA for MAX4412EXK+T versus 8 mA for OPA349SA/3K. Operating temperature range is -40°C to 85°C for MAX4412EXK+T versus 0°C to 70°C for OPA349SA/3K. These differences make the OPA349SA/3K unsuitable for high-speed applications.

Q: Are both substitute parts available in the same package?

A: Yes. Both MAX4412EXK+T and OPA349SA/3K are available in 5-TSSOP, SC-70-5, SOT-353 surface mount packages. Pin configuration and physical dimensions are identical, enabling direct PCB-level substitution without layout modifications.

Q: What compliance certifications apply to each part?

A: The MAX4412EXK-T is RoHS non-compliant. The MAX4412EXK+T and OPA349SA/3K are both ROHS3 compliant. All three parts are REACH Unaffected and classified under ECCN EAR99. For applications requiring RoHS compliance, either MAX4412EXK+T or OPA349SA/3K must be selected.

Q: Which substitute part should be selected for high-frequency signal conditioning?

A: The MAX4412EXK+T is the appropriate selection for high-frequency applications. It maintains the 500 MHz bandwidth and 220V/µs slew rate of the original MAX4412EXK-T. The OPA349SA/3K is unsuitable for high-frequency applications due to its 70 kHz bandwidth limitation.

Q: What is the inventory status of available substitutes?

A: MAX4412EXK+T has 2800 pieces in stock. OPA349SA/3K has 50240 pieces in stock. Both parts are in active production and available through standard procurement channels.