MAX4256EUA-T Equivalent & Substitute Parts

Part Overview

The MAX4256EUA-T is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for applications requiring rail-to-rail output capability and push-pull configuration. This device is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing design support and procurement continuity. The MAX4256EUA-T operates across a supply voltage range of 2.4 V to 5.5 V and is housed in an 8-uMAX/uSOP surface-mount package.

Substiute Parts

MAX4256EUA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1174MAX4256EUA-T Datasheet

Current PartRFQ

MAX4256ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 724MAX4256ESA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4256EUA-T is determined by electrical and mechanical parameter equivalence within the MAX4256 product family. The primary substitution criterion is functional compatibility across all electrical specifications: slew rate (2.1 V/µs), gain bandwidth product (22 MHz), input bias current (1 pA), input offset voltage (70 µV), supply current (420 µA), output current per channel (68 mA), and supply voltage range (2.4 V to 5.5 V). The operating temperature range (-40°C to 85°C) and RoHS3 compliance status must remain consistent.

The MAX4256ESA+T qualifies as a direct substitute based on identical electrical performance parameters and compliance certifications. The primary difference is packaging format: the MAX4256EUA-T uses 8-uMAX/uSOP surface-mount package, while the MAX4256ESA+T uses 8-SOIC surface-mount package. Both packages are surface-mount configurations suitable for automated assembly. The MAX4256ESA+T carries active product status, providing superior long-term availability compared to the obsolete MAX4256EUA-T.

Parameter Comparison

Engineering Selection Recommendations

The MAX4256ESA+T is the qualified substitute for the MAX4256EUA-T based on complete electrical parameter equivalence and identical compliance certifications (ROHS3, MSL 1). All functional specifications—including slew rate, bandwidth, bias current, offset voltage, supply current, output current, and operating temperature range—are identical between the two devices.

The primary consideration for component selection is package format. The MAX4256EUA-T employs an 8-uMAX/uSOP package (0.118" width, 3.00mm), while the MAX4256ESA+T uses an 8-SOIC package (0.154" width, 3.90mm). Both are surface-mount packages; however, PCB layout and footprint design must accommodate the different package dimensions. The 8-SOIC package is wider and may require PCB redesign if space constraints exist.

The MAX4256ESA+T carries active product status from Analog Devices Inc./Maxim Integrated, ensuring ongoing availability and manufacturing support. This status advantage makes the MAX4256ESA+T the preferred long-term solution for new designs and production continuity, provided PCB layout modifications are feasible.

Frequently Asked Questions (FAQ)

Q: Can the MAX4256ESA+T directly replace the MAX4256EUA-T without circuit modifications?

A: Electrical substitution is complete; all functional parameters are identical. However, package format differs (8-SOIC versus 8-uMAX/uSOP), requiring PCB footprint and layout modifications. Pin configuration and electrical connections remain compatible.

Q: What is the primary difference between these two parts?

A: The MAX4256EUA-T and MAX4256ESA+T differ in package type and product status. The MAX4256EUA-T uses an 8-uMAX/uSOP package and is obsolete. The MAX4256ESA+T uses an 8-SOIC package and maintains active product status.

Q: Are there any electrical performance differences?

A: No. Both devices share identical electrical specifications: 2.1 V/µs slew rate, 22 MHz gain bandwidth product, 1 pA input bias current, 70 µV input offset voltage, 420 µA supply current, 68 mA output current per channel, and -40°C to 85°C operating temperature range.

Q: Does the MAX4256ESA+T meet the same compliance requirements?

A: Yes. Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level. Compliance certifications are identical.

Q: What packaging format should I select for new designs?

A: For new designs, the MAX4256ESA+T (8-SOIC package) is recommended due to active product status and assured long-term availability. The 8-SOIC package is a standard surface-mount format with established supply chain support.

Q: Can I use the MAX4256ESA+T in existing designs with MAX4256EUA-T footprints?

A: No. The different package dimensions (8-SOIC: 0.154" width versus 8-uMAX/uSOP: 0.118" width) require PCB footprint redesign. Direct socket substitution is not possible.