MAX4042ESA Equivalent & Substitute Parts

Part Overview

The MAX4042ESA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a dual-channel (2 circuit) rail-to-rail output device in 8-SOIC surface mount packaging. This part is classified as obsolete, indicating discontinuation from the manufacturer. Identification of equivalent and substitute parts is necessary to support ongoing design requirements, system maintenance, and production continuity for applications currently utilizing the MAX4042ESA.

Key Parameters

Parameter	MAX4042ESA Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	Channels
Output Type	Rail-to-Rail	—
Slew Rate	0.04	V/µs
Gain Bandwidth Product	90	kHz
Current - Input Bias	2	nA
Voltage - Input Offset	200	µV
Current - Supply (x2 Channels)	14	µA
Current - Output / Channel	2.5	mA
Voltage - Supply Span (Min)	2.4	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	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MAX4042ESA is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Dual-channel configuration (2 circuits)
Rail-to-rail output capability
8-SOIC surface mount package (0.154", 3.90mm width)
Supply voltage range compatibility (minimum 2.4 V, maximum 5.5 V overlap required)
Operating temperature range coverage (-40°C to 85°C minimum)

Secondary Compatibility Factors:

Input bias current (lower values indicate improved performance)
Slew rate and gain bandwidth product (application-dependent performance metrics)
Output current capability per channel
Input offset voltage

Substitute parts are grouped into two categories:

Category 1: Direct Equivalents (Identical Electrical Performance)

MAX4042ESA+ (same base part, different packaging and compliance status)

Category 2: Functional Substitutes (Compatible Electrical Parameters)

Parts meeting all primary substitution criteria with variations in secondary performance metrics
Includes Texas Instruments LMV358 series, Analog Devices LT1466 series, and Microchip MCP6002/MCP607 series

Parameter Comparison

Part Number	Manufacturer	Slew Rate (V/µs)	GBW (kHz)	Input Bias (nA)	Input Offset (µV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Status	RoHS
MAX4042ESA	Analog Devices	0.04	90	2	200	14	2.5	2.4	5.5	-40 to 85	Obsolete	Non-compliant
MAX4042ESA+	Analog Devices	0.04	90	2	200	14	2.5	2.4	5.5	-40 to 85	Active	ROHS3 Compliant
LMV358M	Texas Instruments	1	1000	15	1700	210	160	2.7	5.5	-40 to 125	Last Time Buy	ROHS3 Compliant
LMV358M/NOPB	Texas Instruments	1	1000	15	1700	210	160	2.7	5.5	-40 to 125	Active	ROHS3 Compliant
LMV358MX/NOPB	Texas Instruments	1	1000	15	1700	210	160	2.7	5.5	-40 to 125	Active	ROHS3 Compliant
LT1466LCS8#PBF	Analog Devices	0.04	120	3	110	60	18	2	10	0 to 70	Active	ROHS3 Compliant
LT1466LCS8#TRPBF	Analog Devices	0.04	120	3	110	60	18	2	10	0 to 70	Active	ROHS3 Compliant
MCP6002-I/SN	Microchip Technology	0.6	1000	0.001	4500	100	23	1.8	6	-40 to 85	Active	ROHS3 Compliant
MCP6002T-I/SN	Microchip Technology	0.6	1000	0.001	4500	100	23	1.8	6	-40 to 85	Active	ROHS3 Compliant
MCP607-I/SN	Microchip Technology	0.08	155	0.001	250	18.7	17	2.5	6	-40 to 85	Active	ROHS3 Compliant
MCP607T-I/SN	Microchip Technology	0.08	155	0.001	250	18.7	17	2.5	6	-40 to 85	Active	ROHS3 Compliant

Engineering Selection Recommendations

Recommended Primary Substitute: MAX4042ESA+

The MAX4042ESA+ is the direct equivalent replacement for the obsolete MAX4042ESA. This part maintains identical electrical specifications and package configuration while offering active product status and ROHS3 compliance. Selection of MAX4042ESA+ eliminates all compatibility risk and is appropriate for direct board-level substitution without circuit redesign.

Recommended Secondary Substitutes (Functional Alternatives):

For applications requiring extended temperature range (-40°C to 125°C):

LMV358M/NOPB (Active status, ROHS3 compliant, highest inventory availability)
LMV358MX/NOPB (Active status, ROHS3 compliant, 155,100 units in stock)

These parts provide superior performance in slew rate (1 V/µs vs. 0.04 V/µs), gain bandwidth product (1 MHz vs. 90 kHz), and output current capability (160 mA vs. 2.5 mA). Extended operating temperature range supports applications with elevated thermal requirements.

For applications requiring low input bias current and CMOS technology:

MCP607-I/SN or MCP607T-I/SN (Microchip Technology, Active status, ROHS3 compliant)

These CMOS amplifiers provide 1 pA input bias current, superior to the MAX4042ESA's 2 nA specification. Slew rate (0.08 V/µs) and gain bandwidth product (155 kHz) remain comparable to the original part.

For applications requiring lowest input bias current and widest supply voltage range:

MCP6002-I/SN or MCP6002T-I/SN (Microchip Technology, Active status, ROHS3 compliant)

These parts offer 1 pA input bias current and extended supply voltage range (1.8 V to 6 V), providing maximum design flexibility. Higher slew rate (0.6 V/µs) and gain bandwidth product (1 MHz) support faster signal processing applications.

Not Recommended for Direct Substitution:

LT1466LCS8#PBF and LT1466LCS8#TRPBF operate within a reduced temperature range (0°C to 70°C), which does not meet the MAX4042ESA's -40°C to 85°C specification. These parts are suitable only for applications with relaxed low-temperature requirements.

Frequently Asked Questions (FAQ)

Q1: Can MAX4042ESA+ be used as a direct replacement for MAX4042ESA?

A: Yes. MAX4042ESA+ is the direct equivalent with identical electrical specifications, package configuration, and pin assignment. The primary differences are active product status and ROHS3 compliance. No circuit modifications are required.

Q2: What are the key differences between MAX4042ESA and LMV358M/NOPB?

A: Both are dual-channel rail-to-rail operational amplifiers in 8-SOIC packaging. LMV358M/NOPB provides superior performance: slew rate of 1 V/µs (vs. 0.04 V/µs), gain bandwidth product of 1 MHz (vs. 90 kHz), and output current of 160 mA per channel (vs. 2.5 mA). LMV358M/NOPB also supports extended operating temperature to 125°C. These improvements make it suitable for higher-speed applications but may require circuit validation due to increased bandwidth.

Q3: Why does MCP6002-I/SN show higher input offset voltage (4.5 mV) compared to MAX4042ESA (200 µV)?

A: MCP6002-I/SN is a CMOS-input amplifier optimized for extremely low input bias current (1 pA). The trade-off is higher input offset voltage. This characteristic is typical of CMOS input stages and does not indicate inferior quality. Selection depends on application requirements: if input bias current is critical, MCP6002-I/SN is superior; if input offset voltage must be minimized, MAX4042ESA or LT1466 series are preferred.

Q4: Can LT1466LCS8#PBF substitute for MAX4042ESA in all applications?

A: LT1466LCS8#PBF is not recommended as a universal substitute due to its reduced operating temperature range (0°C to 70°C vs. -40°C to 85°C). It is suitable only for applications operating within this narrower temperature window. For applications requiring the full -40°C to 85°C range, alternative substitutes must be selected.

Q5: What is the significance of packaging designations (Tube, Cut Tape, Tape & Reel)?

A: Packaging designations indicate the physical form in which components are supplied: Tube packaging is for manual handling and small-quantity applications; Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) are for automated assembly processes. Electrical specifications remain identical across packaging variants. Selection depends on manufacturing process requirements and order quantities.

Q6: Are all substitute parts ROHS3 compliant?

A: All recommended substitute parts except the original MAX4042ESA are ROHS3 compliant. MAX4042ESA is RoHS non-compliant. If RoHS compliance is a design requirement, MAX4042ESA+ or any of the recommended secondary substitutes satisfy this criterion.

Q7: Which substitute offers the best inventory availability?

A: LMV358MX/NOPB (Texas Instruments) has the highest inventory level at 155,100 units in stock. MCP6002T-I/SN (Microchip Technology) is the second option with 241,240 units available. Both parts are active products with ROHS3 compliance and support extended design lifecycles.

Q8: Can supply voltage range differences affect circuit operation?

A: Yes. The MAX4042ESA operates from 2.4 V to 5.5 V. Some substitutes (such as MCP6002 series) support 1.8 V to 6 V, providing wider flexibility. Others (such as LT1466) support 2 V to 10 V. Verify that the selected substitute's supply voltage range encompasses your application's power supply specifications. Narrower ranges may limit design flexibility; wider ranges provide additional margin.

Q9: What does "Last Time Buy" status mean for LMV358M?

A: "Last Time Buy" indicates that Texas Instruments has announced end-of-life for this specific part number variant. Existing inventory is available for purchase, but no future production is planned. For long-term design continuity, LMV358M/NOPB or LMV358MX/NOPB (both with Active status) are preferred alternatives.

Q10: How do I determine which substitute is best for my application?

A: Prioritize selection based on: (1) Package compatibility (all recommended parts use 8-SOIC); (2) Operating temperature range requirements; (3) Supply voltage range requirements; (4) Performance specifications (slew rate, bandwidth, output current); (5) Product status and compliance certifications; (6) Inventory availability and lead time. Consult application-specific datasheets to validate performance metrics against circuit design requirements.

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