MAX4040ESA-T Equivalent & Substitute Parts

Part Overview

The MAX4040ESA-T is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface-mount package. This device features rail-to-rail output capability and is designed for low-power applications requiring single-circuit amplification. The MAX4040ESA-T is classified as obsolete, necessitating identification of active substitute components that maintain electrical and mechanical compatibility for ongoing production and maintenance applications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	0.04	V/µs
Gain Bandwidth Product	90	kHz
Current - Input Bias	2	nA
Voltage - Input Offset	200	µV
Current - Supply	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

Substitute Part Grouping Explanation

Substitution of the MAX4040ESA-T is determined by strict adherence to the following electrical and mechanical criteria:

Primary Substitution Criteria:

Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Amplifier Type: General Purpose
Number of Circuits: 1
Output Type: Rail-to-Rail

Secondary Compatibility Parameters:

Slew Rate: 0.04 V/µs or lower (slower slew rate acceptable)
Gain Bandwidth Product: 90 kHz or higher
Current - Input Bias: 2 nA or lower (lower bias current acceptable)
Voltage - Input Offset: 200 µV or lower (lower offset acceptable)
Current - Supply: 14 µA or lower (lower supply current acceptable)
Current - Output / Channel: 2.5 mA or higher
Voltage - Supply Span (Min): 2.4 V or lower
Voltage - Supply Span (Max): 5.5 V or higher
Operating Temperature: -40°C to 85°C minimum coverage

Substitute parts meeting these criteria are grouped by manufacturer and product status to facilitate component selection based on availability and compliance requirements.

Parameter Comparison

Parameter	MAX4040ESA-T	MAX4040ESA+T	MCP6141-E/SN	MCP6141-I/SN	MCP6141T-E/SN	MCP6141T-I/SN	OPA379AID	OPA379AIDR	TLV379IDR
Manufacturer	Analog Devices / Maxim	Analog Devices / Maxim	Microchip	Microchip	Microchip	Microchip	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Slew Rate (V/µs)	0.04	0.04	0.003	0.003	0.003	0.003	0.03	0.03	0.03
Gain Bandwidth Product (kHz)	90	90	100	100	100	100	90	90	90
Current - Input Bias (nA)	2	2	0.001	0.001	0.001	0.001	0.005	0.005	0.005
Voltage - Input Offset (µV)	200	200	3000	3000	3000	3000	400	400	800
Current - Supply (µA)	14	14	0.6	0.6	0.6	0.6	2.9	2.9	4
Current - Output / Channel (mA)	2.5	2.5	20	20	20	20	5	5	—
Voltage - Supply Span Min (V)	2.4	2.4	1.4	1.4	1.4	1.4	1.8	1.8	1.8
Voltage - Supply Span Max (V)	5.5	5.5	6	6	6	6	5.5	5.5	5.5
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 125	-40 to 85	-40 to 125	-40 to 85	-40 to 125	-40 to 125	-40 to 125
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Specifications):

MAX4040ESA+T is the direct substitute for MAX4040ESA-T. Both components share identical electrical parameters and are housed in the same 8-SOIC package. MAX4040ESA+T is currently in active production status with higher inventory availability (2900 units). This component is ROHS3 compliant and maintains the same moisture sensitivity level. Selection of MAX4040ESA+T is appropriate for applications requiring no design modification.

Microchip MCP6141 Series Substitutes:

The MCP6141-E/SN, MCP6141-I/SN, MCP6141T-E/SN, and MCP6141T-I/SN are functionally compatible substitutes. These devices feature superior electrical performance characteristics including lower input bias current (0.001 nA versus 2 nA), lower supply current (0.6 µA versus 14 µA), and higher output current capability (20 mA versus 2.5 mA). All MCP6141 variants are ROHS3 compliant and maintain 8-SOIC packaging. MCP6141T-I/SN offers the highest inventory availability (33,300 units) and is recommended for high-volume applications. MCP6141T-E/SN is available in tape and reel packaging with extended temperature range (-40°C to 125°C). MCP6141-E/SN is non-compliant with RoHS requirements and should not be selected for applications requiring RoHS certification.

Texas Instruments OPA379 Series Substitutes:

OPA379AID and OPA379AIDR are functionally compatible substitutes with electrical characteristics closely matching the MAX4040ESA-T. Both devices maintain 90 kHz gain bandwidth product and 0.03 V/µs slew rate. OPA379AIDR is supplied in tape and reel packaging with 1600 units in stock. OPA379AID is supplied in tube packaging with 3600 units available. Both variants are ROHS3 compliant with MSL 2 rating (1 Year moisture sensitivity). Extended operating temperature range (-40°C to 125°C) is supported.

Texas Instruments TLV379IDR Substitute:

TLV379IDR is a functionally compatible substitute supplied in tape and reel packaging with 3193 units in stock. This device maintains 90 kHz gain bandwidth product and 0.03 V/µs slew rate. TLV379IDR is ROHS3 compliant with MSL 2 rating and supports extended operating temperature range (-40°C to 125°C). Input offset voltage is 800 µV, which exceeds the MAX4040ESA-T specification of 200 µV. Selection of TLV379IDR is appropriate for applications where higher input offset voltage is acceptable.

Frequently Asked Questions (FAQ)

Q: Can MAX4040ESA+T be used as a direct replacement for MAX4040ESA-T?

A: Yes. MAX4040ESA+T is the direct substitute with identical electrical specifications, package type, and pin configuration. The primary difference is product status (active versus obsolete) and packaging format (tape and reel versus standard). No circuit modification is required.

Q: What are the key differences between Microchip MCP6141 variants?

A: MCP6141 variants differ in temperature rating and packaging format. MCP6141-E/SN and MCP6141T-E/SN support -40°C to 125°C operating range, while MCP6141-I/SN and MCP6141T-I/SN support -40°C to 85°C. The "T" designation indicates tape and reel packaging; non-T variants are supplied in tube format. All MCP6141 devices feature superior low-power performance with 0.6 µA supply current compared to 14 µA for MAX4040ESA-T.

Q: Are there performance trade-offs when substituting with MCP6141 devices?

A: MCP6141 devices feature lower slew rate (0.003 V/µs versus 0.04 V/µs) and higher input offset voltage (3000 µV versus 200 µV). These characteristics are acceptable for general-purpose amplifier applications but may impact performance in high-speed or precision signal conditioning circuits. Verify application requirements before selection.

Q: What is the difference between OPA379AID and OPA379AIDR?

A: Both devices are electrically identical. OPA379AID is supplied in tube packaging, while OPA379AIDR is supplied in tape and reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Can TLV379IDR be used in applications requiring low input offset voltage?

A: TLV379IDR has input offset voltage of 800 µV, which exceeds the MAX4040ESA-T specification of 200 µV. This device is suitable for general-purpose applications where offset voltage is not a critical parameter. For precision applications requiring low offset voltage, OPA379AID or OPA379AIDR are preferred alternatives.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed are ROHS3 compliant except MCP6141T-E/SN, which is marked as RoHS non-compliant. Verify compliance requirements for your application before component selection.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in three packaging formats: tube (MCP6141-E/SN, OPA379AID), tape and reel (MAX4040ESA+T, MCP6141T-E/SN, MCP6141T-I/SN, OPA379AIDR, TLV379IDR), and cut tape with digi-reel (MCP6141T-I/SN). Select packaging format based on assembly equipment compatibility and order quantity requirements.

Q: Do all substitute parts maintain the same 8-SOIC package dimensions?

A: Yes. All substitute parts are housed in 8-SOIC packages with 0.154" width (3.90mm). Pin configuration and footprint are identical, enabling direct PCB compatibility without layout modification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message