MAX4274ADEUA Equivalent & Substitute Parts

Part Overview

The MAX4274ADEUA 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 product status, making substitute components necessary for new designs and ongoing production requirements.

The MAX4274ADEUA 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, buffering, and low-frequency analog signal processing in battery-powered and low-voltage systems.

Due to obsolescence, equivalent substitutes must maintain compatibility across critical electrical parameters including supply voltage range, output type, circuit count, and package form factor while considering modern RoHS compliance and availability.

Key Parameters

Parameter	MAX4274ADEUA	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 - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Current - Supply	330	µA (x2 Channels)
Current - Output / Channel	65	mA
Operating Temperature	-40 to 85	°C
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad	—
Mounting Type	Surface Mount	—
Product Status	Obsolete	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MAX4274ADEUA is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Number of Circuits: Must be 2 (dual amplifier configuration)
Output Type: Must be Rail-to-Rail
Supply Voltage Range: Minimum 2.5V or lower; Maximum 5.5V or higher
Package Compatibility: 8-pin surface mount (8-TSSOP, 8-MSOP, or 8-VSSOP variants)
Operating Temperature: Must support -40°C to 85°C minimum

Secondary Compatibility Parameters:

Gain Bandwidth Product: 1 MHz or greater
Slew Rate: 0.3V/µs or greater
Current Output per Channel: 10 mA or greater
Input Bias Current: 1 pA or greater (lower is acceptable)

Substitute parts are grouped into two functional 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). The audio-grade LME49726MYX/NOPB is included as a high-performance alternative for applications requiring superior signal fidelity.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Number of Circuits	Output Type	GBW (MHz)	Slew Rate (V/µs)	Supply Min (V)	Supply Max (V)	Supply Current (µA)	Output Current (mA)	Temp Range (°C)	Package	RoHS Status	Product Status
MAX4274ADEUA	Analog Devices	General Purpose	2	Rail-to-Rail	2	0.7	2.5	5.5	330	65	-40 to 85	8-TSSOP/MSOP	Non-compliant	Obsolete
AZV832MMTR-G1	Diodes Incorporated	CMOS	2	Rail-to-Rail	1	0.45	1.6	5.5	70	185	-40 to 85	8-MSOP	ROHS3 Compliant	Active
BU7442FVM-TR	Rohm Semiconductor	General Purpose	2	Rail-to-Rail	0.6	0.3	1.7	5.5	100	10	-40 to 85	8-MSOP	ROHS3 Compliant	Active
BU7442SFVM-TR	Rohm Semiconductor	General Purpose	2	Rail-to-Rail	0.6	0.3	1.7	5.5	100	10	-40 to 105	8-MSOP	ROHS3 Compliant	Active
BU7462FVM-TR	Rohm Semiconductor	CMOS	2	Rail-to-Rail	1	1	1.7	5.5	300	12	-40 to 85	8-MSOP	ROHS3 Compliant	Active
BU7462SFVM-TR	Rohm Semiconductor	CMOS	2	Rail-to-Rail	1	1	1.7	5.5	300	12	-40 to 105	8-MSOP	ROHS3 Compliant	Active
LME49726MYX/NOPB	Texas Instruments	Audio	2	Rail-to-Rail	6.25	3.7	2.5	5.5	700	350	-40 to 85	8-HVSSOP	ROHS3 Compliant	Active
LMR358FVJ-GE2	Rohm Semiconductor	General Purpose	2	Rail-to-Rail	3	1	2.7	5.5	210	60	-40 to 85	8-TSSOP	ROHS3 Compliant	Active
LMV552MM/NOPB	Texas Instruments	General Purpose	2	Rail-to-Rail	3	1	2.7	5.5	37	25	-40 to 125	8-VSSOP	ROHS3 Compliant	Active
LMV552MMX/NOPB	Texas Instruments	General Purpose	2	Rail-to-Rail	3	1	2.7	5.5	37	25	-40 to 125	8-VSSOP	ROHS3 Compliant	Active
LMV772MM/NOPB	Texas Instruments	General Purpose	2	Differential, Rail-to-Rail	3.5	1.4	2.7	5.5	600	75	-40 to 125	8-VSSOP	ROHS3 Compliant	Active

Engineering Selection Recommendations

Compliance and Availability Considerations:

All substitute parts listed are Active product status with ROHS3 Compliant certification, addressing the obsolescence and non-compliance status of the MAX4274ADEUA. Selection should prioritize active components to ensure long-term supply chain stability and regulatory compliance.

General Purpose Amplifier Substitutes:

For direct functional replacement in standard signal conditioning applications, LMR358FVJ-GE2 and LMV552MM/NOPB / LMV552MMX/NOPB provide equivalent dual-circuit, rail-to-rail configurations. LMR358FVJ-GE2 offers superior gain bandwidth product (3 MHz vs. 2 MHz) and slew rate (1V/µs vs. 0.7V/µs) while maintaining comparable supply current. LMV552 variants feature ultra-low supply current (37µA) suitable for battery-powered applications and extended operating temperature range to 125°C.

CMOS Amplifier Substitutes:

For ultra-low input bias current applications, AZV832MMTR-G1 and BU7462FVM-TR / BU7462SFVM-TR provide CMOS technology with 1 pA input bias current. BU7462 variants offer higher slew rate (1V/µs) and extended temperature range to 105°C (SFVM variant).

High-Performance Audio Alternative:

LME49726MYX/NOPB is suitable for applications requiring superior signal fidelity, offering 6.25 MHz gain bandwidth product and 3.7V/µs slew rate. This device maintains the same 2.5V minimum supply voltage as the original MAX4274ADEUA.

Temperature Range Considerations:

Applications requiring operation above 85°C should specify BU7442SFVM-TR, BU7462SFVM-TR, or LMV552MM/NOPB / LMV552MMX/NOPB variants, which support -40°C to 105°C or -40°C to 125°C ranges respectively.

Frequently Asked Questions (FAQ)

Q: Can I directly replace MAX4274ADEUA with any of these substitutes without circuit modification?

A: Direct pin-compatible replacement is possible with parts sharing identical 8-pin surface mount packages (8-TSSOP, 8-MSOP, 8-VSSOP). However, electrical parameter differences—particularly gain bandwidth product, slew rate, and supply current—may require circuit validation. LMR358FVJ-GE2 and LMV552 series are recommended for minimal design changes due to comparable electrical characteristics.

Q: What is the key difference between General Purpose and CMOS amplifier substitutes?

A: CMOS amplifiers (AZV832MMTR-G1, BU7462 series) feature extremely low input bias current (1 pA) and are optimized for high-impedance signal sources. General Purpose amplifiers (BU7442, LMR358, LMV552, LMV772) offer higher output current capability and are suitable for standard buffering and signal conditioning. Selection depends on input source impedance and output load requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification. The original MAX4274ADEUA is RoHS non-compliant, making substitution necessary for applications subject to RoHS regulations.

Q: Which substitute offers the lowest power consumption?

A: LMV552MM/NOPB and LMV552MMX/NOPB provide the lowest supply current at 37µA (x2 Channels), compared to 330µA for the MAX4274ADEUA. These are optimal for battery-powered and energy-constrained applications.

Q: Can I use LME49726MYX/NOPB as a direct substitute?

A: LME49726MYX/NOPB is functionally compatible but uses an 8-HVSSOP package rather than 8-TSSOP/MSOP. This requires PCB layout modification. The device is suitable only for applications where superior audio performance justifies the package change and higher supply current (700µA vs. 330µA).

Q: What is the difference between BU7442FVM-TR and BU7442SFVM-TR?

A: Both are identical general purpose amplifiers with 0.6 MHz gain bandwidth product and 0.3V/µs slew rate. The primary difference is operating temperature range: BU7442FVM-TR supports -40°C to 85°C, while BU7442SFVM-TR extends to -40°C to 105°C. Select the SFVM variant for high-temperature applications.

Q: Are LMV552MM/NOPB and LMV552MMX/NOPB interchangeable?

A: Yes. Both parts are electrically and functionally identical with identical specifications. The difference is packaging format: MM indicates Cut Tape & Digi-Reel, while MMX indicates Tape & Reel. Selection depends on procurement and assembly requirements.

Q: Which substitute has the highest output current capability?

A: LME49726MYX/NOPB provides 350 mA per channel output current, significantly exceeding the MAX4274ADEUA (65 mA) and all other substitutes. This is suitable for driving low-impedance loads or multiple stages.

Q: Can I use BU7442 series for high-frequency applications?

A: No. BU7442 series offers only 0.6 MHz gain bandwidth product, below the MAX4274ADEUA specification (2 MHz). For applications requiring ≥2 MHz bandwidth, select LMR358FVJ-GE2 (3 MHz), LMV552 series (3 MHz), LMV772MM/NOPB (3.5 MHz), or LME49726MYX/NOPB (6.25 MHz).

Q: What supply voltage range is supported across all substitutes?

A: All substitutes support the maximum 5.5V supply. Minimum supply voltage varies: AZV832MMTR-G1 and BU7462 series support 1.6V–1.7V minimum, while LMR358FVJ-GE2, LMV552, and LMV772 support 2.7V minimum. The MAX4274ADEUA minimum is 2.5V. For 2.5V operation, use LME49726MYX/NOPB (2.5V minimum) or verify circuit compatibility with 2.7V minimum devices.

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