MAX4401AXT-T Equivalent & Substitute Parts

Part Overview

The MAX4401AXT-T is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring rail-to-rail output capability in a compact SC-70-6 surface mount package. This device is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and production continuity. The MAX4401AXT-T delivers 1 circuit with 800 kHz gain bandwidth product and operates across a 2.5 V to 5.5 V supply range, making it suitable for low-power analog signal conditioning applications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	1	V/µs
Gain Bandwidth Product	800	kHz
Current - Input Bias	0.1	pA
Voltage - Input Offset	800	µV
Current - Supply	410	µA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Package / Case	6-TSSOP, SC-88, SOT-363	—
Mounting Type	Surface Mount	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the MAX4401AXT-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

Amplifier Type: General Purpose
Number of Circuits: 1
Output Type: Rail-to-Rail
Package / Case: 6-TSSOP, SC-88, SOT-363
Mounting Type: Surface Mount
Operating Temperature Range: -40°C to 125°C
Supply Voltage Range: Minimum 2.5 V, Maximum 5.5 V

Allowable Parameter Variations: Substitute parts may exceed the original specifications in the following parameters without compromising circuit compatibility:

Slew Rate (higher values acceptable)
Gain Bandwidth Product (higher values acceptable)
Current - Input Bias (lower values acceptable)
Voltage - Input Offset (lower values acceptable)
Current - Supply (lower values acceptable)
Current - Output / Channel (higher values acceptable)

All substitute parts listed maintain identical package geometry, pin configuration, and functional classification as the MAX4401AXT-T.

Parameter Comparison

Parameter	MAX4401AXT-T	MAX4401AXT+T	LMV341IDCKR	LMV601MG/NOPB	LMV601MGX/NOPB
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Texas Instruments	Texas Instruments	Texas Instruments
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	1	1	1	1	1
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	1	1	1	1	1
Gain Bandwidth Product (kHz)	800	800	1000	1000	1000
Current - Input Bias (pA)	0.1	0.1	1	0.02	0.02
Voltage - Input Offset (µV)	800	800	250	250	250
Current - Supply (µA)	410	410	107	107	107
Current - Output / Channel (mA)	30	30	113	113	113
Voltage - Supply Span Min (V)	2.5	2.5	2.5	2.7	2.7
Voltage - Supply Span Max (V)	5.5	5.5	5.5	5.5	5.5
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Package / Case	6-TSSOP, SC-88, SOT-363	6-TSSOP, SC-88, SOT-363	6-TSSOP, SC-88, SOT-363	6-TSSOP, SC-88, SOT-363	6-TSSOP, SC-88, SOT-363
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

MAX4401AXT+T (Analog Devices Inc./Maxim Integrated)

This part represents the direct active equivalent to the obsolete MAX4401AXT-T. It maintains identical electrical specifications and package configuration while offering ROHS3 compliance and active product status. The MAX4401AXT+T is available in Cut Tape and Digi-Reel packaging with 32,869 units in stock. Selection of this part eliminates obsolescence risk while preserving design compatibility.

LMV341IDCKR (Texas Instruments)

This Texas Instruments alternative provides enhanced performance characteristics including 1 MHz gain bandwidth product (versus 800 kHz), reduced input offset voltage of 250 µV, and significantly improved output current capability of 113 mA. Supply current is reduced to 107 µA. The LMV341IDCKR maintains identical package geometry and operating temperature range. ROHS3 compliance and active product status are confirmed. This part is suitable for applications requiring improved bandwidth and output drive capability.

LMV601MG/NOPB and LMV601MGX/NOPB (Texas Instruments)

Both LMV601 variants deliver superior input bias current performance at 0.02 pA and maintain 1 MHz gain bandwidth product. The LMV601MG/NOPB is supplied in Cut Tape and Digi-Reel packaging (4,380 units in stock), while the LMV601MGX/NOPB is supplied in Tape & Reel format (65,400 units in stock). Both variants require minimum supply voltage of 2.7 V versus 2.5 V for the original part. ROHS3 compliance and active product status apply to both variants. Selection between these parts depends on packaging and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX4401AXT+T be used as a direct replacement for MAX4401AXT-T?

A: Yes. The MAX4401AXT+T is the active equivalent of the obsolete MAX4401AXT-T. Both parts share identical electrical specifications, package configuration (SC-70-6), and pin assignments. The primary difference is product status and RoHS compliance. No circuit modifications are required.

Q: What are the key differences between the MAX4401AXT-T and the Texas Instruments LMV601 series?

A: The LMV601MG/NOPB and LMV601MGX/NOPB offer superior input bias current (0.02 pA versus 0.1 pA), lower input offset voltage (250 µV versus 800 µV), reduced supply current (107 µA versus 410 µA), and higher output current capability (113 mA versus 30 mA). Both maintain 1 MHz gain bandwidth product. The minimum supply voltage requirement is 2.7 V instead of 2.5 V. All parts maintain identical package geometry and operating temperature range.

Q: Are there packaging differences between substitute parts?

A: Yes. The MAX4401AXT+T is available in Cut Tape and Digi-Reel packaging. The LMV341IDCKR is supplied in Cut Tape and Digi-Reel format. The LMV601MG/NOPB is available in Cut Tape and Digi-Reel packaging, while the LMV601MGX/NOPB is supplied in Tape & Reel format. All parts use identical SC-70-6 package geometry suitable for automated assembly.

Q: Do all substitute parts meet RoHS compliance requirements?

A: The MAX4401AXT-T is RoHS non-compliant. All substitute parts (MAX4401AXT+T, LMV341IDCKR, LMV601MG/NOPB, and LMV601MGX/NOPB) are ROHS3 compliant, meeting current environmental regulations for new designs and production.

Q: What is the minimum supply voltage for each part?

A: The MAX4401AXT-T, MAX4401AXT+T, and LMV341IDCKR operate at minimum 2.5 V supply voltage. The LMV601MG/NOPB and LMV601MGX/NOPB require minimum 2.7 V supply voltage. All parts support maximum supply voltage of 5.5 V.

Q: Which substitute part offers the best output current capability?

A: The LMV341IDCKR, LMV601MG/NOPB, and LMV601MGX/NOPB all provide 113 mA output current per channel, compared to 30 mA for the original MAX4401AXT-T. This represents a 3.77× improvement in output drive capability.

Q: Are all parts suitable for the full -40°C to 125°C operating temperature range?

A: Yes. All listed parts (MAX4401AXT-T, MAX4401AXT+T, LMV341IDCKR, LMV601MG/NOPB, and LMV601MGX/NOPB) are rated for -40°C to 125°C operating temperature range.

Q: What is the moisture sensitivity level for these parts?

A: All parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating no moisture sensitivity restrictions during storage or handling.

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