MAX4075ADEUA Equivalent & Substitute Parts Reference

Part Overview

The MAX4075ADEUA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring dual circuits in a rail-to-rail configuration. This device is classified as Obsolete and is no longer in active production. The part operates across a 2.5V to 5.5V supply range with a gain bandwidth product of 4 MHz and is housed in an 8-uMAX-EP package.

Due to its obsolete status, identifying functionally equivalent substitute components is essential for design continuity, production support, and long-term system reliability. Substitute parts must maintain compatibility across electrical performance parameters, package form factor, and supply voltage specifications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	0.1	V/µs
Gain Bandwidth Product	4	MHz
-3dB Bandwidth	102	kHz
Current - Input Bias	0.8	pA
Voltage - Input Offset	200	µV
Current - Supply (x2 Channels)	37	µA
Current - Output / Channel	22	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 70	°C
Mounting Type	Surface Mount	—
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad	—
RoHS Status	RoHS non-compliant	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitute parts for the MAX4075ADEUA are selected based on the following critical parameters that define functional equivalence:

Primary Substitution Criteria:

Dual-circuit configuration (2 circuits per package)
Rail-to-rail output capability
Supply voltage compatibility (minimum 2.5V, maximum 5.5V)
Surface mount package with compatible pinout (8-pin TSSOP/MSOP family)
General-purpose amplifier classification

Secondary Compatibility Parameters:

Gain bandwidth product in the range of 1–6.25 MHz
Input bias current ≤ 25 pA
Input offset voltage ≤ 1.7 mV
Output current per channel ≥ 22 mA
Operating temperature range encompassing -40°C to 70°C

Substitute parts are grouped into two categories:

Direct General-Purpose Substitutes – Parts maintaining general-purpose amplifier classification with rail-to-rail output and comparable bandwidth characteristics (ISL28213FUZ-T7, LMV358 variants)
Enhanced-Performance Substitutes – Parts offering superior performance specifications (audio-grade amplifiers, zero-drift amplifiers) suitable for applications requiring higher output current, lower offset voltage, or extended temperature ranges (LME49726 variants, LMP2022 variants)

Parameter Comparison

Parameter	MAX4075ADEUA	ISL28213FUZ-T7	LME49726MY/NOPB	LMP2022MM/NOPB	LMV358Q1MM/NOPB
Amplifier Type	General Purpose	General Purpose	Audio	Zero-Drift	General Purpose
Number of Circuits	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	—	Rail-to-Rail
Slew Rate (V/µs)	0.1	1	3.7	2.6	1
Gain Bandwidth Product (MHz)	4	2	6.25	5	1
Current - Input Bias (pA)	0.8	3	0.2	25	15 nA
Voltage - Input Offset (µV)	200	500	500	0.4	1.7 mV
Current - Supply (µA, x2 Channels)	37	90	700	1100	210
Current - Output / Channel (mA)	22	22	350	50	160
Voltage - Supply Span (Min)	2.5 V	1.8 V	2.5 V	2.2 V	2.7 V
Voltage - Supply Span (Max)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Operating Temperature (°C)	-40 to 70	-40 to 125	-40 to 85	-40 to 125	-40 to 125
Package / Case	8-TSSOP, 8-MSOP Exposed Pad	8-MSOP	8-HVSSOP Exposed Pad	8-VSSOP	8-VSSOP
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active

Engineering Selection Recommendations

For Direct Functional Replacement:

The ISL28213FUZ-T7 (Renesas Electronics) provides the closest functional match to the MAX4075ADEUA. Both devices are general-purpose dual-circuit amplifiers with rail-to-rail output, compatible supply voltage ranges (1.8–5.5V encompasses the original 2.5–5.5V specification), and identical output current per channel (22 mA). The ISL28213FUZ-T7 is in active production status with ROHS3 compliance, addressing the obsolescence and regulatory concerns of the original part. Operating temperature range extends to 125°C, providing enhanced thermal margin.

For Low-Power Applications:

The LMV358Q1MM/NOPB and LMV358Q3MM/NOPB (Texas Instruments) are automotive-grade general-purpose amplifiers with AEC-Q100 qualification. These parts maintain rail-to-rail output and dual-circuit configuration with significantly lower supply current (210 µA vs. 37 µA for the original). The LMV358Q1MM/NOPB supports -40°C to 125°C operation, while the LMV358Q3MM/NOPB operates to 85°C. Both are ROHS3 compliant and in active production.

For High-Performance Audio Applications:

The LME49726MY/NOPB and LME49726MYX/NOPB (Texas Instruments) are audio-grade amplifiers offering superior slew rate (3.7 V/µs) and gain bandwidth product (6.25 MHz). Output current per channel reaches 350 mA, supporting higher load driving capability. These parts are ROHS3 compliant and in active production, though supply current is elevated (700 µA). Operating temperature range is -40°C to 85°C.

For Precision Applications:

The LMP2022MM/NOPB, LMP2022MME/NOPB, and LMP2022MMX/NOPB (Texas Instruments) are zero-drift amplifiers with exceptional input offset voltage (0.4 µV) and extended operating temperature to 125°C. These parts are ROHS3 compliant and in active production. Supply current is higher (1.1 mA), and output type specification is not provided in the data; verification of rail-to-rail capability is required for applications dependent on this characteristic.

Compliance Considerations:

All recommended substitute parts are ROHS3 compliant, addressing the non-compliant status of the obsolete MAX4075ADEUA. All parts maintain REACH unaffected status and EAR99 export classification consistent with the original component.

Frequently Asked Questions (FAQ)

Q1: Can the ISL28213FUZ-T7 directly replace the MAX4075ADEUA without circuit modification?

The ISL28213FUZ-T7 maintains functional compatibility across all critical parameters: dual general-purpose amplifier configuration, rail-to-rail output, compatible supply voltage range (1.8–5.5V), and identical output current per channel (22 mA). The 8-MSOP package is mechanically and electrically compatible with the 8-TSSOP/8-MSOP family. No circuit modification is required for basic functionality. However, the extended operating temperature range (-40°C to 125°C vs. -40°C to 70°C) and improved input bias current (3 pA vs. 0.8 pA) should be verified against application thermal and precision requirements.

Q2: What is the primary difference between the LMV358 variants and the original MAX4075ADEUA?

The LMV358 series (LMV358Q1MM/NOPB, LMV358Q3MM/NOPB, LMV358Q3MMX/NOPB) are automotive-grade general-purpose amplifiers with AEC-Q100 qualification. Key differences include significantly lower supply current (210 µA vs. 37 µA), lower gain bandwidth product (1 MHz vs. 4 MHz), and higher input bias current (15 nA vs. 0.8 pA). The LMV358Q1MM/NOPB supports extended temperature operation to 125°C, while the LMV358Q3 variants operate to 85°C. These parts are suitable for low-power applications where bandwidth requirements are modest.

Q3: Why would I select the LME49726 audio amplifier over a general-purpose substitute?

The LME49726MY/NOPB and LME49726MYX/NOPB are audio-grade amplifiers offering superior dynamic performance: slew rate of 3.7 V/µs (vs. 0.1 V/µs for the original) and gain bandwidth product of 6.25 MHz (vs. 4 MHz). Output current per channel reaches 350 mA, enabling direct driving of higher-impedance loads. These characteristics are essential for audio signal conditioning, instrumentation amplification, and high-speed signal processing applications. Supply current is elevated (700 µA), requiring power budget consideration.

Q4: What are the advantages of zero-drift amplifiers like the LMP2022 series?

The LMP2022MM/NOPB, LMP2022MME/NOPB, and LMP2022MMX/NOPB offer exceptional input offset voltage of 0.4 µV, compared to 200 µV for the original MAX4075ADEUA. This precision is critical for precision measurement, sensor signal conditioning, and data acquisition applications where offset drift over temperature and time must be minimized. Extended operating temperature range to 125°C provides thermal stability. Supply current is higher (1.1 mA), and output type is not specified; applications requiring rail-to-rail output must verify this characteristic with the manufacturer.

Q5: Are all substitute parts available in the same package as the MAX4075ADEUA?

The MAX4075ADEUA is housed in an 8-uMAX-EP package. Substitute parts use compatible 8-pin TSSOP/MSOP family packages: ISL28213FUZ-T7 (8-MSOP), LME49726 variants (8-HVSSOP with exposed pad), LMP2022 variants (8-VSSOP), and LMV358 variants (8-VSSOP). All packages maintain 0.118" (3.00mm) width and are mechanically compatible with standard surface-mount assembly processes. Pin assignments should be verified against application schematics to ensure correct signal routing.

Q6: Which substitute part offers the best compliance and long-term availability?

All recommended substitute parts are ROHS3 compliant, REACH unaffected, and in active production status. The ISL28213FUZ-T7, LME49726 variants, LMP2022 variants, and LMV358 variants all meet modern regulatory requirements. For maximum long-term availability and supply chain stability, parts from established manufacturers (Texas Instruments, Renesas Electronics) with broad market adoption are preferred. Inventory levels should be verified with authorized distributors for production planning.

Q7: Can I use the LMV358Q3MM/NOPB in applications requiring operation above 85°C?

The LMV358Q3MM/NOPB and LMV358Q3MMX/NOPB are specified for operation from -40°C to 85°C. Applications requiring operation above 85°C should use the LMV358Q1MM/NOPB or LMV358Q1MMX/NOPB, which support -40°C to 125°C operation. Alternatively, the LMP2022 series (zero-drift amplifiers) or ISL28213FUZ-T7 support extended temperature ranges to 125°C. Operating parts beyond their specified temperature range voids performance guarantees and may result in parametric drift or device failure.

Q8: What is the significance of the "Exposed Pad" designation in the MAX4075ADEUA and LME49726 packages?

The exposed pad (EP) in 8-uMAX-EP and 8-HVSSOP packages provides direct thermal contact to the printed circuit board, improving heat dissipation. This is particularly important for applications with elevated ambient temperature or continuous high-current operation. The LMP2022 (8-VSSOP) and LMV358 (8-VSSOP) packages do not include exposed pads; thermal performance may be reduced in high-power applications. Package selection should consider thermal requirements and PCB layout capabilities.

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