MAX4251ESA Equivalent & Substitute Parts Reference

Part Overview

The MAX4251ESA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a single-circuit push-pull, rail-to-rail amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements. The MAX4251ESA operates across a 2.4V to 5.5V supply range with a slew rate of 0.3V/µs and a gain bandwidth product of 3 MHz, making it suitable for general-purpose amplification applications requiring low-power operation and compact packaging.

Substiute Parts

MAX4251ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 5390MAX4251ESA Datasheet

Current PartRFQ

MAX4251ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1066MAX4251ESA+ Datasheet

DirectRFQ

TLV2470AID

Texas InstrumentsIn Stock: 932TLV2470AID Datasheet

MFR RecommendedRFQ

TLV2470CD

Texas InstrumentsIn Stock: 1131TLV2470CD Datasheet

MFR RecommendedRFQ

TLV2470CDR

Texas InstrumentsIn Stock: 811TLV2470CDR Datasheet

MFR RecommendedRFQ

TLV2470ID

Texas InstrumentsIn Stock: 813TLV2470ID Datasheet

MFR RecommendedRFQ

TLV2470IDR

Texas InstrumentsIn Stock: 735TLV2470IDR Datasheet

MFR RecommendedRFQ

TLV4110ID

Texas InstrumentsIn Stock: 1242TLV4110ID Datasheet

MFR RecommendedRFQ

TLV4110IDR

Texas InstrumentsIn Stock: 23842TLV4110IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4251ESA is determined by strict alignment of electrical and mechanical parameters within the general-purpose operational amplifier category. The critical parameters governing substitution eligibility are:

Mechanical Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB layout compatibility without redesign.

Functional Equivalence: Substitute parts must operate as single-circuit, rail-to-rail output amplifiers suitable for general-purpose applications.

Electrical Operating Range: The supply voltage span must encompass or exceed the original 2.4V to 5.5V range. Substitute parts with expanded ranges (such as 2.5V to 6V or 2.7V to 6V) are acceptable as they maintain backward compatibility.

Performance Characteristics: While the MAX4251ESA exhibits specific slew rate (0.3V/µs), gain bandwidth product (3 MHz), and output current (68 mA) values, substitute parts with equal or superior performance in these metrics are functionally acceptable for general-purpose applications where the original specifications are not the limiting design constraint.

Compliance and Product Status: Active or Last Time Buy status parts are preferred over obsolete classifications. RoHS3 compliance is required for new designs and production environments subject to regulatory requirements.

The substitute parts identified—MAX4251ESA+, TLV2470AID, TLV2470CD, TLV2470CDR, TLV2470ID, TLV2470IDR, and TLV4110ID/TLV4110IDR—satisfy these substitution criteria through identical or compatible package specifications, rail-to-rail output architecture, and general-purpose amplifier functionality.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: MAX4251ESA+

The MAX4251ESA+ represents the direct successor to the MAX4251ESA, manufactured by the same supplier (Analog Devices Inc./Maxim Integrated). This part maintains identical electrical specifications including slew rate (0.3V/µs), gain bandwidth product (3 MHz), supply current (420µA), and output current (68 mA). The MAX4251ESA+ is classified as Active product status, ensuring long-term availability and supply chain stability. The primary distinction is RoHS3 compliance, making this the preferred choice for new designs and production environments subject to environmental regulations. Packaging is available in Tube format with 1013 units in current inventory.

Secondary Substitutes: TLV2470 Series (Texas Instruments)

The TLV2470 family—available as TLV2470AID, TLV2470CD, TLV2470CDR, TLV2470ID, and TLV2470IDR—provides functional equivalence with enhanced performance characteristics. All variants maintain the 8-SOIC package and rail-to-rail output architecture. The TLV2470 series exhibits superior slew rate (1.5V/µs versus 0.3V/µs) and comparable gain bandwidth product (2.8 MHz). Supply voltage range extends to 6V maximum, providing expanded operating envelope. All TLV2470 variants are Active product status with RoHS3 compliance. Temperature range variants are available: TLV2470AID and TLV2470ID support -40°C to 125°C operation, while TLV2470CD and TLV2470CDR are rated 0°C to 70°C. Packaging options include Tube (TLV2470AID, TLV2470CD, TLV2470ID) and Tape & Reel formats (TLV2470CDR, TLV2470IDR).

Tertiary Substitute: TLV4110 Series (Texas Instruments)

The TLV4110ID and TLV4110IDR offer enhanced output current capability (320 mA versus 68 mA) and superior input bias current performance (0.3 pA versus 1 pA). These parts maintain 8-SOIC packaging and rail-to-rail output configuration. The TLV4110 series provides slew rate of 1.57V/µs and gain bandwidth product of 2.7 MHz. Supply voltage range spans 2.5V to 6V. Both variants support -40°C to 125°C operation and are RoHS3 compliant. TLV4110ID is classified as Last Time Buy status, while TLV4110IDR is Active. Packaging includes Tube (TLV4110ID) and Cut Tape & Digi-Reel formats (TLV4110IDR) with substantial inventory availability (1140 and 23829 units respectively).

Selection Criteria by Application:

For direct replacement in existing designs with minimal circuit modification, select MAX4251ESA+ to maintain identical electrical performance and supply specifications.

For new designs requiring enhanced slew rate performance and extended temperature range, select TLV2470AID or TLV2470ID.

For applications requiring high output current capability, select TLV4110ID or TLV4110IDR.

For production environments requiring Tape & Reel packaging, select TLV2470CDR, TLV2470IDR, or TLV4110IDR.

Frequently Asked Questions (FAQ)

Q: Can the TLV2470 series directly replace the MAX4251ESA without circuit modification?

A: The TLV2470 series maintains identical 8-SOIC package geometry and rail-to-rail output architecture, enabling direct PCB-level substitution. However, the TLV2470 exhibits different electrical characteristics: slew rate of 1.5V/µs (versus 0.3V/µs), input offset voltage of 250µV (versus 70µV), and output current of 35mA (versus 68mA). Circuit performance may differ in applications where these parameters are critical design constraints. Functional verification is required for applications sensitive to slew rate, offset voltage, or output current specifications.

Q: What is the difference between TLV2470AID and TLV2470CD?

A: Both parts are manufactured by Texas Instruments and share identical electrical specifications. The primary distinction is operating temperature range: TLV2470AID supports -40°C to 125°C operation, while TLV2470CD is rated 0°C to 70°C. Select TLV2470AID for applications requiring extended low-temperature operation. Packaging format differs: TLV2470AID is supplied in Tube, while TLV2470CD is also available in Tube format. TLV2470CDR provides the same electrical specifications as TLV2470CD with Tape & Reel packaging for automated assembly.

Q: Why does the TLV4110 series have significantly higher output current (320 mA) compared to the MAX4251ESA (68 mA)?

A: The TLV4110 is designed for applications requiring higher output drive capability. This enhanced output current specification does not preclude its use as a substitute for the MAX4251ESA in general-purpose applications where lower output current is sufficient. The higher output current capability provides design flexibility for future circuit modifications without component replacement. However, the TLV4110 exhibits higher supply current (700µA versus 420µA), which may impact power consumption in battery-powered applications.

Q: Is the MAX4251ESA+ identical to the MAX4251ESA?

A: The MAX4251ESA+ maintains identical electrical specifications and performance characteristics as the MAX4251ESA. The primary distinction is product status and compliance: MAX4251ESA+ is classified as Active with RoHS3 compliance, while the original MAX4251ESA is Obsolete and RoHS non-compliant. For new designs and production environments subject to environmental regulations, the MAX4251ESA+ is the recommended choice. Both parts use identical 8-SOIC packaging and are interchangeable at the circuit level.

Q: What packaging formats are available for substitute parts?

A: Substitute parts are available in three packaging formats: Tube (standard packaging for manual assembly and prototyping), Tape & Reel (TR) for automated pick-and-place assembly, and Cut Tape & Digi-Reel for mixed-volume production. MAX4251ESA+ is available in Tube format. TLV2470 variants are available in both Tube (AID, CD, ID) and Tape & Reel (CDR, IDR) formats. TLV4110 variants are available in Tube (ID) and Cut Tape & Digi-Reel (IDR) formats. Select packaging format based on assembly process requirements and production volume.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts identified—MAX4251ESA+, TLV2470 series, and TLV4110 series—are RoHS3 compliant. The original MAX4251ESA is RoHS non-compliant. For production environments subject to RoHS regulations or customer requirements, substitute parts provide full compliance. Compliance documentation is available from manufacturers upon request.

Q: What is the inventory status for substitute parts?

A: Current inventory levels are: MAX4251ESA+ (1013 units), TLV2470AID (866 units), TLV2470CD (1117 units), TLV2470CDR (798 units), TLV2470ID (803 units), TLV2470IDR (715 units), TLV4110ID (1140 units), and TLV4110IDR (23829 units). TLV4110IDR exhibits the highest inventory availability. For long-term supply assurance, TLV4110IDR is recommended despite Last Time Buy status for TLV4110ID.