MAX4041ESA-T Equivalent & Substitute Parts Reference

Part Overview

The MAX4041ESA-T is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for rail-to-rail applications in 8-SOIC surface mount packaging. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The MAX4041ESA-T operates across a 2.4V to 5.5V supply range with low input bias current and minimal input offset voltage, suitable for precision analog signal conditioning applications.

Substiute Parts

MAX4041ESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1139MAX4041ESA-T Datasheet

Current PartRFQ

MAX4041ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2255MAX4041ESA+T Datasheet

DirectRFQ

OPA355UA

Burr BrownIn Stock: 1739OPA355UA Datasheet

MFR RecommendedRFQ

OPA355UA/2K5

Texas InstrumentsIn Stock: 4811OPA355UA/2K5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4041ESA-T is determined by strict alignment of electrical and mechanical parameters within the operational amplifier category. The primary substitution criteria are:

Mandatory Matching Parameters:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Output Type: Rail-to-Rail
• Number of Circuits: 1
• Voltage - Supply Span: Minimum 2.4V, Maximum 5.5V
• Operating Temperature Range: Minimum -40°C, Maximum ≥85°C

Acceptable Variation Parameters:

• Slew Rate: Equal to or greater than 0.04V/µs
• Gain Bandwidth Product: Equal to or greater than 90 kHz
• Current - Input Bias: Equal to or less than 2 nA
• Voltage - Input Offset: Equal to or less than 200 µV
• Current - Supply: Equal to or less than 14 µA
• Current - Output / Channel: Equal to or greater than 2.5 mA

The MAX4041ESA-T has two identified substitutes: MAX4041ESA+T (direct manufacturer equivalent with active product status) and OPA355UA/OPA355UA/2K5 (alternative manufacturer solutions with enhanced performance characteristics).

Parameter Comparison

Engineering Selection Recommendations

MAX4041ESA+T (Primary Substitute)

The MAX4041ESA+T is the direct manufacturer equivalent of the MAX4041ESA-T, manufactured by Analog Devices Inc./Maxim Integrated. This part maintains identical electrical specifications and package configuration while offering active product status. The primary distinction is packaging format: MAX4041ESA+T is supplied in Tape & Reel (TR) format, whereas the original MAX4041ESA-T does not specify packaging. Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Selection of MAX4041ESA+T is appropriate for applications requiring direct electrical and mechanical compatibility with existing designs.

OPA355UA / OPA355UA/2K5 (Alternative Substitutes)

The OPA355UA (Burr Brown) and OPA355UA/2K5 (Texas Instruments) are alternative CMOS operational amplifiers that satisfy all mandatory substitution parameters. These parts feature enhanced performance characteristics including significantly higher slew rate (360 V/µs versus 0.04 V/µs), higher gain bandwidth product (200 MHz versus 90 kHz), lower input bias current (3 pA versus 2 nA), and higher output current capability (100 mA versus 2.5 mA). Both alternatives support extended operating temperature range (-40°C to 125°C) and maintain 8-SOIC surface mount packaging with rail-to-rail output configuration.

OPA355UA/2K5 is supplied in Cut Tape (CT) & Digi-Reel® format with ROHS3 compliance and MSL 2 (1 Year) rating. OPA355UA product status and compliance certifications are not fully specified in available data.

Selection of OPA355UA or OPA355UA/2K5 is appropriate for applications where enhanced bandwidth, slew rate, and output current capability provide design margin or enable improved system performance. These alternatives are suitable for designs tolerating higher supply current consumption (8.3 mA versus 14 µA) and higher input offset voltage (2 mV versus 200 µV).

Frequently Asked Questions (FAQ)

Q: Can MAX4041ESA+T be used as a direct replacement for MAX4041ESA-T?

A: Yes. MAX4041ESA+T is the active production equivalent manufactured by Analog Devices Inc./Maxim Integrated. Electrical specifications, package configuration (8-SOIC), and operating parameters are identical. The difference is packaging format (Tape & Reel versus unspecified). Both are ROHS3 compliant with MSL 1 rating.

Q: What are the key differences between MAX4041ESA-T and OPA355UA?

A: Both parts share identical package (8-SOIC), mounting type (surface mount), output type (rail-to-rail), and circuit count (1). OPA355UA offers superior performance: slew rate of 360 V/µs (versus 0.04 V/µs), gain bandwidth product of 200 MHz (versus 90 kHz), input bias current of 3 pA (versus 2 nA), and output current of 100 mA (versus 2.5 mA). OPA355UA requires higher supply current (8.3 mA versus 14 µA) and has higher input offset voltage (2 mV versus 200 µV). Operating temperature range extends to 125°C.

Q: Are OPA355UA and OPA355UA/2K5 interchangeable?

A: OPA355UA and OPA355UA/2K5 have identical electrical specifications and package configuration. The designation suffix indicates packaging and distribution format: OPA355UA/2K5 is supplied in Cut Tape (CT) & Digi-Reel® format, while OPA355UA packaging is not specified. OPA355UA/2K5 carries ROHS3 compliance and MSL 2 (1 Year) rating. Selection depends on packaging requirements and moisture sensitivity tolerance for your application.

Q: What supply voltage range is compatible with all substitute parts?

A: All substitute parts (MAX4041ESA+T, OPA355UA, OPA355UA/2K5) support the maximum supply range of 2.4V to 5.5V specified for the original MAX4041ESA-T. OPA355UA and OPA355UA/2K5 require minimum 2.7V, which is within the original specification range.

Q: Which substitute part is recommended for low-power applications?

A: MAX4041ESA+T maintains the original supply current specification of 14 µA, making it the appropriate choice for power-constrained designs. OPA355UA and OPA355UA/2K5 consume 8.3 mA supply current, approximately 600 times higher, and are unsuitable for ultra-low-power applications.

Q: Are all substitute parts RoHS compliant?

A: MAX4041ESA+T and OPA355UA/2K5 are explicitly ROHS3 compliant. OPA355UA RoHS status is not specified in available documentation. For applications requiring verified RoHS compliance, MAX4041ESA+T or OPA355UA/2K5 are recommended.

Q: What is the moisture sensitivity consideration for long-term storage?

A: MAX4041ESA-T and MAX4041ESA+T have MSL 1 (Unlimited) rating, permitting indefinite storage without moisture bake-out. OPA355UA/2K5 has MSL 2 (1 Year) rating, requiring moisture bake-out if storage exceeds one year. OPA355UA MSL rating is not specified. For applications with extended storage requirements, MAX4041ESA+T is preferred.