MAX4274BJESA Equivalent & Substitute Parts

Part Overview

The MAX4274BJESA is a general purpose operational amplifier featuring dual circuits in an 8-SOIC surface mount package, manufactured by Analog Devices Inc./Maxim Integrated. This device provides rail-to-rail output capability with a 2 MHz gain bandwidth product and operates across a 2.5V to 5.5V supply range. The part is classified as obsolete, making equivalent and substitute components necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	MAX4274BJESA	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	0.7	V/µs
Gain Bandwidth Product	2	MHz
-3dB Bandwidth	310	kHz
Current - Input Bias	50	pA
Voltage - Input Offset	500	µV
Current - Supply (x2 Channels)	330	µA
Current - Output / Channel	65	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Product Status	Obsolete	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MAX4274BJESA requires matching the following critical parameters: dual-circuit configuration, general purpose amplifier topology, rail-to-rail output capability, 8-SOIC package format, and surface mount technology. The substitute parts are grouped into two categories based on functional alignment:

Category 1: Direct General Purpose Amplifier Substitutes These parts maintain the general purpose amplifier classification with rail-to-rail output and dual-circuit architecture. Substitutes include ADA4692-2ARZ, ADA4692-2ARZ-R7, ADA4692-2ARZ-RL, LMR358FJ-GE2, LMV772MA/NOPB, and LMV772MAX/NOPB. These devices operate within compatible supply voltage ranges (2.7V to 5.5V minimum to maximum) and provide enhanced performance characteristics including higher slew rates, improved gain bandwidth products, and lower input bias currents compared to the original part.

Category 2: Alternative Amplifier Architecture Substitutes These parts employ different amplifier topologies (CMOS or voltage feedback) but maintain dual-circuit configuration and 8-SOIC packaging. Substitutes include BU7442F-E2, BU7442SF-E2, CLC2011ISO8MTR, and MCP602T-E/SN. These devices offer trade-offs in performance parameters and are suitable for applications where the specific amplifier architecture is not a design constraint.

Parameter Comparison

Parameter	MAX4274BJESA	ADA4692-2ARZ	LMR358FJ-GE2	LMV772MA/NOPB	MCP602T-E/SN	Unit
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	CMOS	—
Number of Circuits	2	2	2	2	2	—
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Differential, Rail-to-Rail	Rail-to-Rail	—
Slew Rate	0.7	1.3	1.0	1.4	2.3	V/µs
Gain Bandwidth Product	2	3.6	3	3.5	2.8	MHz
Current - Input Bias	50	0.5	15	0.23	1	pA
Voltage - Input Offset	500	500	100	250	700	µV
Current - Supply (x2 Channels)	330	180	210	600	230	µA
Current - Output / Channel	65	55	60	75	22	mA
Voltage - Supply Span (Min)	2.5	2.7	2.7	2.7	2.7	V
Voltage - Supply Span (Max)	5.5	5.0	5.5	5.5	6.0	V
Operating Temperature	-40 to 85	-40 to 125	-40 to 85	-40 to 125	-40 to 125	°C
Package / Case	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	—
Product Status	Obsolete	Active	Active	Active	Active	—
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

Primary Recommendation: ADA4692-2ARZ Series

The ADA4692-2ARZ, ADA4692-2ARZ-R7, and ADA4692-2ARZ-RL variants are manufacturer-recommended substitutes for the MAX4274BJESA. All three variants share identical electrical specifications and differ only in packaging format (Tube, Cut Tape & Digi-Reel, and Tape & Reel respectively). These parts are active products with ROHS3 compliance, addressing the RoHS non-compliance status of the original part. The ADA4692 series provides superior performance with 1.3V/µs slew rate (versus 0.7V/µs), 3.6 MHz gain bandwidth product (versus 2 MHz), and significantly lower input bias current of 0.5 pA (versus 50 pA). Supply current is reduced to 180µA per dual channels, improving power efficiency. Operating temperature range extends to 125°C, providing enhanced thermal margin. The 8-SOIC package maintains direct pin compatibility.

Secondary Recommendation: LMV772MA/NOPB or LMV772MAX/NOPB

The LMV772 series from Texas Instruments offers active product status with ROHS3 compliance. These devices feature differential output capability in addition to rail-to-rail operation, providing design flexibility. Slew rate of 1.4V/µs and gain bandwidth product of 3.5 MHz exceed the original specification. Input bias current of 0.23 pA represents significant improvement. Operating temperature extends to 125°C. The LMV772MAX/NOPB variant provides higher inventory availability (22,113 pieces) in Cut Tape & Digi-Reel packaging.

Alternative Recommendation: LMR358FJ-GE2

The LMR358FJ-GE2 from Rohm Semiconductor is an active product with ROHS3 compliance. This general purpose amplifier maintains the 8-SOIC package and dual-circuit configuration. Performance parameters include 1V/µs slew rate, 3 MHz gain bandwidth product, and 15 nA input bias current. Operating temperature range is -40°C to 85°C, matching the original part. Supply current of 210µA and output current of 60 mA per channel provide comparable performance to the original device.

Compliance Consideration

All recommended substitutes are ROHS3 compliant, addressing the RoHS non-compliance status of the obsolete MAX4274BJESA. This compliance status is mandatory for new designs and production in regulated markets.

Frequently Asked Questions (FAQ)

Q1: Can the ADA4692-2ARZ directly replace the MAX4274BJESA without circuit modifications?

The ADA4692-2ARZ maintains identical pin configuration and 8-SOIC package format as the MAX4274BJESA. Both devices are dual-circuit general purpose amplifiers with rail-to-rail output. However, the improved performance characteristics (higher slew rate, lower input bias current, extended temperature range) may require verification in specific circuit applications to ensure no unintended interactions with existing compensation networks or feedback configurations.

Q2: What is the difference between ADA4692-2ARZ, ADA4692-2ARZ-R7, and ADA4692-2ARZ-RL?

These three part numbers represent identical electrical devices differentiated only by packaging format. ADA4692-2ARZ is supplied in Tube packaging. ADA4692-2ARZ-R7 is supplied in Cut Tape & Digi-Reel format. ADA4692-2ARZ-RL is supplied in Tape & Reel format. Selection depends on production volume and assembly equipment compatibility. All three variants are active products with ROHS3 compliance and identical electrical specifications.

Q3: Why does the LMV772 series list "Differential, Rail-to-Rail" output while the MAX4274BJESA lists only "Rail-to-Rail"?

The LMV772 series provides differential output capability in addition to rail-to-rail single-ended operation. This enhanced functionality does not prevent its use as a direct substitute for applications requiring only single-ended rail-to-rail output. The differential capability provides additional design flexibility for applications that may require it.

Q4: Is the MCP602T-E/SN suitable as a substitute for the MAX4274BJESA?

The MCP602T-E/SN is a CMOS amplifier rather than a general purpose amplifier topology. While it maintains dual-circuit configuration, 8-SOIC packaging, and rail-to-rail output, the different amplifier architecture may introduce different frequency response characteristics and noise performance. This part is suitable only for applications where CMOS amplifier topology is acceptable and performance trade-offs have been evaluated.

Q5: What is the significance of the extended operating temperature range in substitute parts?

The MAX4274BJESA operates from -40°C to 85°C. Most substitute parts extend this range to -40°C to 125°C. The extended upper temperature limit provides additional thermal margin and may eliminate the need for thermal management in applications operating near the original 85°C limit. This is a beneficial characteristic that does not require circuit modification.

Q6: How does the reduced supply current in the ADA4692 series affect circuit design?

The ADA4692 series draws 180µA per dual channels compared to 330µA for the MAX4274BJESA. This 45% reduction in supply current decreases power dissipation and heat generation. For battery-powered applications, this improvement extends operating time. No circuit modifications are required; the reduced current consumption is a direct benefit.

Q7: Are all substitute parts available in the same 8-SOIC package?

All recommended substitute parts are available in 8-SOIC (0.154", 3.90mm Width) surface mount packages, maintaining direct mechanical and electrical compatibility with the MAX4274BJESA. The BU7442 series uses 8-SOP packaging with slightly different width (0.173", 4.40mm), which may require PCB layout verification for tight spacing applications.

Q8: What compliance certifications are critical for new designs?

All active substitute parts carry ROHS3 compliance certification. The original MAX4274BJESA is RoHS non-compliant. For new designs and production in regulated markets, ROHS3 compliance is mandatory. All recommended primary and secondary substitutes meet this requirement.

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