MAX4274ABEUA Equivalent & Substitute Parts

Part Overview

The MAX4274ABEUA is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring dual circuits in an 8-uMAX-EP package with rail-to-rail output capability. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and production continuity.

The MAX4274ABEUA operates across a 2.5V to 5.5V supply range with a gain bandwidth product of 2 MHz and slew rate of 0.7V/µs. Its primary applications include general purpose signal conditioning and amplification in low-power systems. Due to its obsolete status, equivalent active alternatives must be evaluated based on electrical performance parameters and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Gain Bandwidth Product	2	MHz
Slew Rate	0.7	V/µs
Voltage - Input Offset	500	µV
Current - Input Bias	50	pA
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
Mounting Type	Surface Mount	—
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MAX4274ABEUA is determined by the following critical parameters:

Functional Requirements:

Dual-channel operational amplifier configuration (2 circuits)
Rail-to-rail output capability
General purpose amplifier classification
Surface mount package compatibility (8-MSOP or 8-TSSOP footprint)

Electrical Performance Boundaries:

Supply voltage range: minimum 2.5V to maximum 5.5V (all substitutes must support this span)
Gain bandwidth product: 2 MHz (substitutes may exceed this specification)
Slew rate: 0.7V/µs (substitutes may exceed this specification)
Input offset voltage: 500 µV maximum
Operating temperature: -40°C to 85°C minimum

Compliance Considerations:

RoHS compliance status (original part is non-compliant; active substitutes are RoHS3 compliant)
Product status transition from obsolete to active alternatives

Substitutes are grouped into two categories based on amplifier type: general purpose amplifiers (BU7442FVM-TR, BU7442SFVM-TR, LMR358FVJ-GE2, LMV552MM/NOPB, LMV552MMX/NOPB, LMV772MM/NOPB) and CMOS amplifiers (AZV832MMTR-G1, BU7462FVM-TR, BU7462SFVM-TR). Audio-grade alternatives (LME49726MYX/NOPB) are included for applications requiring enhanced performance.

Parameter Comparison

Parameter	MAX4274ABEUA	AZV832MMTR-G1	BU7442FVM-TR	BU7442SFVM-TR	BU7462FVM-TR	BU7462SFVM-TR	LME49726MYX/NOPB	LMR358FVJ-GE2	LMV552MM/NOPB	LMV552MMX/NOPB	LMV772MM/NOPB
Amplifier Type	General Purpose	CMOS	General Purpose	General Purpose	CMOS	CMOS	Audio	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	—	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Differential, Rail-to-Rail
Slew Rate (V/µs)	0.7	0.45	0.3	0.3	1	1	3.7	1	1	1	1.4
Gain Bandwidth Product (MHz)	2	1	0.6	0.6	1	1	6.25	3	3	3	3.5
Current - Input Bias (pA)	50	1	1	1	1	1	0.2	15 nA	20 nA	20 nA	0.23
Voltage - Input Offset (µV)	500	500	1000	1000	1000	1000	500	100	1000	1000	250
Current - Supply (µA)	330	70	100	100	300	300	700	210	37	37	600
Current - Output / Channel (mA)	65	185	10	10	12	12	350	60	25	25	75
Voltage - Supply Span Min (V)	2.5	1.6	1.7	1.7	1.7	1.7	2.5	2.7	2.7	2.7	2.7
Voltage - Supply Span Max (V)	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 105	-40 to 85	-40 to 105	-40 to 85	-40 to 85	-40 to 125	-40 to 125	-40 to 125
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad	8-MSOP	8-VSSOP, 8-MSOP (0.110", 2.80mm Width)	8-VSSOP, 8-MSOP (0.110", 2.80mm Width)	8-VSSOP, 8-MSOP (0.110", 2.80mm Width)	8-VSSOP, 8-MSOP (0.110", 2.80mm Width)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes for Direct Replacement:

The LMV552MM/NOPB and LMV552MMX/NOPB (Texas Instruments LMV series) provide the closest functional equivalence to the MAX4274ABEUA. Both devices maintain identical electrical specifications including 3 MHz gain bandwidth product, 1V/µs slew rate, and rail-to-rail output configuration. These parts are RoHS3 compliant with active product status and support the full 2.5V to 5.5V supply range. The primary advantage is extended operating temperature range (-40°C to 125°C) compared to the original specification. Package compatibility is confirmed for 8-VSSOP footprint.

Secondary Substitutes for Performance-Enhanced Applications:

The LMV772MM/NOPB offers superior performance with 3.5 MHz gain bandwidth product and 1.4V/µs slew rate while maintaining general purpose amplifier classification. This device includes differential output capability and operates across -40°C to 125°C. The LMR358FVJ-GE2 (Rohm Semiconductor) provides 3 MHz bandwidth with lower input offset voltage (100 µV) and is suitable for precision applications.

CMOS Alternatives:

The AZV832MMTR-G1 (Diodes Incorporated) and BU7462FVM-TR/BU7462SFVM-TR (Rohm Semiconductor) represent CMOS amplifier options with 1 MHz gain bandwidth product. These devices feature extremely low input bias current (1 pA) and are suitable for high-impedance signal sources. The BU7462SFVM-TR extends operating temperature to 105°C.

Audio-Grade Alternative:

The LME49726MYX/NOPB (Texas Instruments LME series) is classified as an audio amplifier with enhanced performance specifications: 6.25 MHz gain bandwidth product, 3.7V/µs slew rate, and 350 mA output current per channel. This device is appropriate for applications requiring superior signal fidelity and higher output drive capability.

Compliance and Availability:

All recommended substitutes are RoHS3 compliant and carry active product status, ensuring long-term availability and regulatory compliance. The original MAX4274ABEUA is RoHS non-compliant and obsolete, making transition to active alternatives necessary for new designs and production continuity.

Frequently Asked Questions (FAQ)

Q1: Can the LMV552MM/NOPB directly replace the MAX4274ABEUA without circuit modifications?

The LMV552MM/NOPB is electrically compatible with the MAX4274ABEUA across all critical parameters: dual-channel configuration, rail-to-rail output, 2.5V to 5.5V supply range, and -40°C to 85°C operating temperature overlap. Both devices are housed in 8-VSSOP packages with identical pinout. No circuit modifications are required for direct substitution. The extended temperature range of the LMV552MM/NOPB (-40°C to 125°C) provides additional design margin.

Q2: What are the key differences between general purpose and CMOS amplifier substitutes?

General purpose amplifiers (BU7442FVM-TR, LMV552MM/NOPB, LMR358FVJ-GE2) utilize bipolar input stages with input bias currents in the nanoampere range (15-20 nA). CMOS amplifiers (AZV832MMTR-G1, BU7462FVM-TR) feature CMOS input stages with input bias currents of 1 pA, making them suitable for high-impedance applications. CMOS devices typically exhibit lower power consumption (70-300 µA) compared to general purpose types (100-210 µA). Selection depends on application requirements for input impedance and power budget.

Q3: Is the package footprint compatible between MAX4274ABEUA and all substitute parts?

The MAX4274ABEUA is specified in 8-TSSOP/8-MSOP (0.118", 3.00mm width) with exposed pad. Most substitutes use 8-VSSOP/8-MSOP (0.110", 2.80mm width) packages. While both are 8-pin MSOP variants, the width difference (3.00mm vs. 2.80mm) requires PCB layout verification. The LME49726MYX/NOPB and LMR358FVJ-GE2 maintain the original 0.118" width specification, providing direct footprint compatibility. Consult PCB design guidelines for package-specific pad dimensions.

Q4: Which substitute offers the lowest power consumption?

The LMV552MM/NOPB and LMV552MMX/NOPB consume only 37 µA total supply current (x2 channels), representing an 89% reduction compared to the MAX4274ABEUA (330 µA). This makes the LMV552 series optimal for battery-powered and low-power applications. The AZV832MMTR-G1 (70 µA) and BU7442FVM-TR (100 µA) also provide significant power savings.

Q5: What is the significance of RoHS compliance in selecting a substitute?

The original MAX4274ABEUA is RoHS non-compliant, restricting its use in applications subject to RoHS regulations (primarily European Union markets). All recommended substitutes are RoHS3 compliant, ensuring compliance with current environmental and hazardous substance directives. RoHS3 compliance is mandatory for new product designs and procurement in regulated markets.

Q6: Can the BU7442SFVM-TR or BU7462SFVM-TR be used in applications requiring extended temperature operation?

Yes. The BU7442SFVM-TR and BU7462SFVM-TR extend the upper operating temperature limit to 105°C, compared to 85°C for the original MAX4274ABEUA. These devices are suitable for industrial and automotive applications with elevated ambient temperature requirements. The LMV552MM/NOPB and LMV772MM/NOPB further extend the range to 125°C for extreme environment applications.

Q7: Which substitute provides the highest output current capability?

The LME49726MYX/NOPB delivers 350 mA per channel output current, compared to 65 mA for the MAX4274ABEUA. The AZV832MMTR-G1 provides 185 mA per channel. These devices are suitable for applications requiring direct drive of low-impedance loads or multiple cascaded stages. General purpose and CMOS alternatives typically provide 10-75 mA per channel.

Q8: Are there performance trade-offs when substituting the MAX4274ABEUA with lower-bandwidth alternatives?

The BU7442FVM-TR and BU7442SFVM-TR feature 600 kHz gain bandwidth product, compared to 2 MHz for the MAX4274ABEUA. This represents a 70% reduction in bandwidth and may impact applications requiring high-frequency signal processing. These devices are suitable for low-frequency signal conditioning, sensor interfaces, and DC amplification. For bandwidth-critical applications, select LMV552MM/NOPB (3 MHz), LMR358FVJ-GE2 (3 MHz), or LME49726MYX/NOPB (6.25 MHz).

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