MAX4241ESA Equivalent & Substitute Parts Reference

Part Overview

The MAX4241ESA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring rail-to-rail output capability in an 8-SOIC surface mount package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. The MAX4241ESA operates across a supply voltage range of 1.8V to 5.5V with a gain bandwidth product of 90 kHz, making it suitable for low-power analog signal conditioning applications.

Substiute Parts

MAX4241ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 12844MAX4241ESA Datasheet

Current PartRFQ

MAX4241ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1500MAX4241ESA+ 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 MAX4241ESA is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Package compatibility: 8-SOIC form factor (0.154", 3.90mm Width)
• Output configuration: Rail-to-rail output capability
• Supply voltage range: Minimum 1.8V, maximum 5.5V
• Single circuit configuration
• Surface mount mounting type

Substitute Categories:

Category 1: Direct Equivalent (MAX4241ESA+) The MAX4241ESA+ maintains identical electrical specifications and packaging to the original part. This substitute differs only in product status (Active vs. Obsolete) and RoHS compliance level, making it a direct functional replacement with improved regulatory compliance.

Category 2: Performance-Enhanced Substitutes (OPA355UA, OPA355UA/2K5) The OPA355UA and OPA355UA/2K5 are CMOS-based amplifiers that meet the core substitution criteria of 8-SOIC packaging and rail-to-rail output. These parts operate within the required supply voltage range and provide enhanced electrical performance characteristics, including higher slew rate, increased gain bandwidth product, and lower input bias current. Both variants maintain Active product status and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

MAX4241ESA+ Selection: The MAX4241ESA+ is the preferred direct substitute when design specifications require exact electrical parameter matching with the original MAX4241ESA. This part maintains identical performance characteristics while offering Active product status and ROHS3 compliance, eliminating obsolescence risk without design modification.

OPA355UA / OPA355UA/2K5 Selection: The OPA355UA and OPA355UA/2K5 are suitable substitutes for applications where enhanced performance characteristics are acceptable or beneficial. These CMOS-based amplifiers provide significantly higher slew rate (360V/µs vs. 0.04V/µs), increased gain bandwidth product (200 MHz vs. 90 kHz), and lower input bias current (3 pA vs. 2 nA). Both variants maintain 8-SOIC packaging and rail-to-rail output configuration. The OPA355UA/2K5 offers ROHS3 compliance and extended temperature range (-40°C to 125°C). Selection between OPA355UA and OPA355UA/2K5 depends on regulatory compliance requirements and packaging format preferences (Tube vs. Cut Tape/Digi-Reel).

Compliance Considerations: For applications requiring RoHS3 compliance, MAX4241ESA+ or OPA355UA/2K5 are appropriate selections. The original MAX4241ESA is RoHS non-compliant and should be replaced in new designs subject to RoHS regulations.

Frequently Asked Questions (FAQ)

Q: Can MAX4241ESA+ be used as a direct replacement for MAX4241ESA? A: Yes. The MAX4241ESA+ maintains identical electrical specifications, package configuration, and pin compatibility. The primary differences are product status (Active vs. Obsolete) and improved RoHS3 compliance.

Q: What are the key differences between MAX4241ESA and OPA355UA? A: The OPA355UA is a CMOS-based amplifier with significantly enhanced performance: slew rate of 360V/µs (vs. 0.04V/µs), gain bandwidth product of 200 MHz (vs. 90 kHz), and input bias current of 3 pA (vs. 2 nA). Both devices share 8-SOIC packaging and rail-to-rail output capability. The OPA355UA operates at a higher supply current (8.3 mA vs. 14 µA) and provides higher output current capability (100 mA vs. 2.5 mA).

Q: Are OPA355UA and OPA355UA/2K5 electrically identical? A: Yes. Both parts are electrically identical CMOS amplifiers with identical electrical specifications. The designation difference reflects packaging format and supplier configuration: OPA355UA is supplied in Tube packaging, while OPA355UA/2K5 is supplied in Cut Tape (CT) and Digi-Reel format. OPA355UA/2K5 includes ROHS3 compliance certification and MSL-2 moisture sensitivity rating.

Q: What is the minimum supply voltage for each substitute? A: MAX4241ESA and MAX4241ESA+ operate at minimum 1.8V. OPA355UA and OPA355UA/2K5 require minimum 2.7V supply voltage. Applications operating below 2.7V must use MAX4241ESA or MAX4241ESA+.

Q: Can OPA355UA be used in low-power applications? A: OPA355UA has higher supply current consumption (8.3 mA) compared to MAX4241ESA (14 µA). For ultra-low-power applications, MAX4241ESA or MAX4241ESA+ are more appropriate selections.

Q: Are all substitute parts available in 8-SOIC packaging? A: Yes. All listed substitutes (MAX4241ESA+, OPA355UA, OPA355UA/2K5) are available in 8-SOIC (0.154", 3.90mm Width) surface mount package configuration.

Q: What is the temperature operating range for each part? A: MAX4241ESA and MAX4241ESA+ operate from -40°C to 85°C. OPA355UA and OPA355UA/2K5 operate from -40°C to 125°C, providing extended high-temperature capability.