MAX4275BKESA Equivalent & Substitute Parts

Part Overview

The MAX4275BKESA 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 2.5 V to 5.5 V 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 through matching electrical specifications and identical or compatible packaging configurations.

Key Parameters

Parameter	MAX4275BKESA	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	330	kHz
Current - Input Bias	50	pA
Voltage - Input Offset	500	µV
Current - Supply (x2 Channels)	355	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 MAX4275BKESA is determined by the following critical parameters:

Primary Compatibility Criteria:

Dual-circuit configuration (2 circuits required)
General-purpose amplifier topology
Rail-to-rail output capability
8-SOIC package form factor (0.154", 3.90mm width)
Surface mount technology
Supply voltage range compatibility (minimum 2.5 V, maximum 5.5 V)
Operating temperature range (-40°C to 85°C minimum)

Secondary Performance Parameters:

Slew rate (0.7 V/µs baseline)
Gain bandwidth product (2 MHz baseline)
Input bias current (50 pA baseline)
Input offset voltage (500 µV baseline)
Supply current per channel (355 µA baseline)
Output current per channel (65 mA baseline)

Substitute parts are grouped into two categories based on electrical performance alignment and product status:

Category A: Active, Higher-Performance Substitutes Parts with improved specifications, active product status, and RoHS3 compliance. These include ADA4692-2ARZ variants and LMV772 series devices.

Category B: Active, Comparable-Performance Substitutes Parts with similar electrical characteristics and active status. These include LMV358IDT and LMR358FJ-GE2.

Category C: Obsolete or Limited-Performance Alternatives Parts with reduced performance or obsolete status. These include CLC2011ISO8MTR and CMOS variants (BU7442 series).

Parameter Comparison

Parameter	MAX4275BKESA	ADA4692-2ARZ	ADA4692-2ARZ-R7	ADA4692-2ARZ-RL	LMV358IDT	LMV772MA/NOPB	LMV772MAX/NOPB	LMR358FJ-GE2	Unit
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	—
Number of Circuits	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	Differential, Rail-to-Rail	Differential, Rail-to-Rail	Rail-to-Rail	—
Slew Rate	0.7	1.3	1.3	1.3	0.45	1.4	1.4	1	V/µs
Gain Bandwidth Product	2	3.6	3.6	3.6	1.3	3.5	3.5	3	MHz
Current - Input Bias	50	0.5	0.5	0.5	16	0.23	0.23	15	pA / nA
Voltage - Input Offset	500	500	500	500	100	250	250	100	µV
Current - Supply (x2 Channels)	355	180	180	180	162	600	600	210	µA
Current - Output / Channel	65	55	55	55	160	75	75	60	mA
Voltage - Supply Span (Min)	2.5	2.7	2.7	2.7	2.7	2.7	2.7	2.7	V
Voltage - Supply Span (Max)	5.5	5	5	5	6	5.5	5.5	5.5	V
Operating Temperature (Min)	-40	-40	-40	-40	-40	-40	-40	-40	°C
Operating Temperature (Max)	85	125	125	125	125	125	125	85	°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)	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	Active	Active	Active	—
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 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 represent the manufacturer-recommended substitutes for the MAX4275BKESA. All three variants share identical electrical specifications and differ only in packaging format (Tube, Cut Tape & Digi-Reel, and Tape & Reel respectively). These devices provide:

Active product status with full manufacturing support
ROHS3 compliance for regulatory requirements
Improved slew rate (1.3 V/µs vs. 0.7 V/µs)
Higher gain bandwidth product (3.6 MHz vs. 2 MHz)
Reduced input bias current (0.5 pA vs. 50 pA)
Lower supply current (180 µA vs. 355 µA)
Extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C)
Identical 8-SOIC package footprint
Adequate output current capability (55 mA vs. 65 mA)

Secondary Recommendation: LMV772MA/NOPB and LMV772MAX/NOPB

The LMV772 series from Texas Instruments provides active product status and ROHS3 compliance with performance characteristics exceeding the MAX4275BKESA:

Slew rate of 1.4 V/µs
Gain bandwidth product of 3.5 MHz
Extremely low input bias current (0.23 pA)
Extended operating temperature range (-40°C to 125°C)
Differential output capability in addition to rail-to-rail operation
Identical 8-SOIC package footprint

The LMV772MAX/NOPB variant offers higher inventory availability (22,113 pcs) compared to the tube-packaged LMV772MA/NOPB (1,431 pcs).

Tertiary Recommendation: LMV358IDT

The LMV358IDT from STMicroelectronics provides an active, ROHS3-compliant alternative with the highest inventory availability (215,400 pcs). This device offers:

Active product status
ROHS3 compliance
Extended operating temperature range (-40°C to 125°C)
Identical 8-SOIC package footprint
Higher output current capability (160 mA vs. 65 mA)
Wider maximum supply voltage (6 V vs. 5.5 V)

Performance trade-offs include lower slew rate (0.45 V/µs) and reduced gain bandwidth product (1.3 MHz), making this option suitable for applications where bandwidth is not critical.

Quaternary Recommendation: LMR358FJ-GE2

The LMR358FJ-GE2 from Rohm Semiconductor provides an active, ROHS3-compliant substitute with:

Active product status
ROHS3 compliance
Slew rate of 1 V/µs
Gain bandwidth product of 3 MHz
Identical 8-SOIC package footprint
Operating temperature range of -40°C to 85°C (matching original specification)

This device maintains the original operating temperature ceiling while providing improved performance characteristics.

Not Recommended: BU7442 Series and CLC2011ISO8MTR

The BU7442F-E2 and BU7442SF-E2 are CMOS amplifiers with significantly reduced performance specifications (0.3 V/µs slew rate, 600 kHz bandwidth) and are not suitable for general-purpose applications requiring the performance envelope of the MAX4275BKESA.

The CLC2011ISO8MTR is classified as obsolete and does not provide a viable long-term solution despite its voltage feedback topology.

Frequently Asked Questions (FAQ)

Q1: Can the ADA4692-2ARZ variants be used interchangeably with the MAX4275BKESA?

A: Yes. The ADA4692-2ARZ, ADA4692-2ARZ-R7, and ADA4692-2ARZ-RL are electrically identical and differ only in packaging format (Tube, Cut Tape & Digi-Reel, and Tape & Reel). All three are pin-compatible with the MAX4275BKESA in the 8-SOIC package and provide superior electrical performance. Selection between variants depends on procurement and assembly requirements.

Q2: What is the primary advantage of the ADA4692-2ARZ over the MAX4275BKESA?

A: The ADA4692-2ARZ provides active product status with full manufacturing support, ROHS3 compliance, improved slew rate (1.3 V/µs vs. 0.7 V/µs), higher gain bandwidth product (3.6 MHz vs. 2 MHz), significantly lower input bias current (0.5 pA vs. 50 pA), and reduced supply current consumption (180 µA vs. 355 µA). The extended operating temperature range (-40°C to 125°C) provides additional design flexibility.

Q3: Is the LMV358IDT suitable for high-speed applications?

A: The LMV358IDT has a gain bandwidth product of 1.3 MHz and slew rate of 0.45 V/µs, which are lower than the MAX4275BKESA specifications. This device is suitable for applications where bandwidth requirements do not exceed 1.3 MHz. For applications requiring the original 2 MHz bandwidth or higher, the ADA4692-2ARZ or LMV772 series are recommended.

Q4: Are all substitute parts RoHS3 compliant?

A: All recommended substitute parts (ADA4692-2ARZ series, LMV358IDT, LMV772 series, and LMR358FJ-GE2) are ROHS3 compliant. The original MAX4275BKESA is RoHS non-compliant. Substitution with any recommended part improves regulatory compliance for new designs.

Q5: What is the difference between LMV772MA/NOPB and LMV772MAX/NOPB?

A: Both variants are electrically identical with identical specifications. The primary difference is packaging format: LMV772MA/NOPB is supplied in Tube packaging, while LMV772MAX/NOPB is supplied in Cut Tape & Digi-Reel format. The LMV772MAX/NOPB has significantly higher inventory availability (22,113 pcs vs. 1,431 pcs).

Q6: Can the BU7442 series be used as a substitute?

A: The BU7442 series is not recommended as a substitute. These are CMOS amplifiers with substantially reduced performance specifications (0.3 V/µs slew rate, 600 kHz gain bandwidth product) compared to the MAX4275BKESA (0.7 V/µs, 2 MHz). The BU7442 series is suitable only for ultra-low-power applications where bandwidth is not a requirement.

Q7: What supply voltage considerations apply to substitution?

A: The MAX4275BKESA operates from 2.5 V to 5.5 V. Most substitute parts (ADA4692-2ARZ, LMV772 series, LMR358FJ-GE2) operate from 2.7 V minimum, requiring verification that designs do not require operation below 2.7 V. The LMV358IDT supports up to 6 V maximum supply, providing additional headroom. The ADA4692-2ARZ maximum supply is 5 V, which is lower than the original 5.5 V specification.

Q8: Are there package compatibility concerns?

A: All recommended substitute parts use the 8-SOIC package with 0.154" (3.90mm) width, matching the MAX4275BKESA footprint. No PCB layout modifications are required for direct substitution. Pin assignments are identical across all recommended parts.

Q9: What is the significance of the "obsolete" product status of the MAX4275BKESA?

A: Obsolete status indicates that the manufacturer has discontinued production and support. Existing inventory may be limited and pricing may increase. Substitution with an active product (such as ADA4692-2ARZ) ensures long-term design support, availability, and stable pricing for production quantities.

Q10: Which substitute provides the best performance improvement?

A: The LMV772MA/NOPB and LMV772MAX/NOPB provide the highest performance improvement with slew rate of 1.4 V/µs, gain bandwidth product of 3.5 MHz, and extremely low input bias current of 0.23 pA. However, the ADA4692-2ARZ series represents the manufacturer-recommended substitute and provides an optimal balance of performance improvement, compliance, and availability.

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