MAX4040EUA-T Equivalent & Substitute Parts

Part Overview

The MAX4040EUA-T is a general purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for rail-to-rail applications in 8-uMAX/uSOP surface mount packaging. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The MAX4040EUA-T delivers 1 circuit configuration with specified electrical performance 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	0.04	V/µs
Gain Bandwidth Product	90	kHz
Current - Input Bias	2	nA
Voltage - Input Offset	250	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
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MAX4040EUA-T is determined by the following critical parameters:

Primary Substitution Criteria:

Amplifier Type: General Purpose
Number of Circuits: 1
Output Type: Rail-to-Rail
Package / Case: 8-TSSOP or 8-MSOP (0.118", 3.00mm Width)
Mounting Type: Surface Mount
Voltage - Supply Span: Minimum 2.4 V, Maximum 5.5 V
Operating Temperature Range: -40°C to 85°C (minimum requirement)

Substitution Categories:

Category 1: Direct Packaging Equivalent (Identical Specifications) MAX4040EUA+T is the direct equivalent with identical electrical specifications and packaging. The only difference is the packaging format (Tape & Reel vs. standard packaging) and active product status.

Category 2: General Purpose Amplifier Substitutes (Microchip MCP6141 Series) The MCP6141-E/MS, MCP6141-I/MS, MCP6141T-E/MS, and MCP6141T-I/MS devices are general purpose amplifiers meeting the core substitution criteria. These parts maintain rail-to-rail output, 8-MSOP packaging, and surface mount configuration. The MCP6141 series operates within the required supply voltage range (1.4 V to 6 V) and temperature range (-40°C to 125°C for -E variants, -40°C to 85°C for -I variants). Electrical performance differs in slew rate (0.003 V/µs vs. 0.04 V/µs), gain bandwidth product (100 kHz vs. 90 kHz), and input bias current (1 pA vs. 2 nA).

Category 3: Enhanced Performance Substitute (Analog Devices ADA4528-1ARMZ Series) The ADA4528-1ARMZ, ADA4528-1ARMZ-R7, and ADA4528-1ARMZ-RL devices are zero-drift amplifiers with superior electrical characteristics. These parts provide rail-to-rail output in 8-MSOP packaging with surface mount configuration. Supply voltage range (2.2 V to 5.5 V) and operating temperature range (-40°C to 125°C) exceed the MAX4040EUA-T requirements. Electrical performance is significantly enhanced: slew rate of 0.5 V/µs, gain bandwidth product of 4 MHz, input bias current of 90 pA, and input offset voltage of 0.3 µV.

Parameter Comparison

Parameter	MAX4040EUA-T	MAX4040EUA+T	MCP6141T-I/MS	MCP6141T-E/MS	ADA4528-1ARMZ-R7
Manufacturer	Analog Devices/Maxim	Analog Devices/Maxim	Microchip Technology	Microchip Technology	Analog Devices
Product Status	Obsolete	Active	Active	Active	Active
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	Zero-Drift
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)	0.04	0.04	0.003	0.003	0.5
Gain Bandwidth Product (kHz)	90	90	100	100	4000
Current - Input Bias (nA)	2	2	0.001	0.001	0.09
Voltage - Input Offset (µV)	250	250	3000	3000	0.3
Current - Supply (µA)	14	14	0.6	0.6	1.5
Current - Output / Channel (mA)	2.5	2.5	20	20	40
Voltage - Supply Span Min (V)	2.4	2.4	1.4	1.4	2.2
Voltage - Supply Span Max (V)	5.5	5.5	6	6	5.5
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 125	-40 to 125
Package / Case	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	811 Pcs	661 Pcs	22800 Pcs	704 Pcs	3505 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): Select MAX4040EUA+T when procurement of the exact electrical specification is required. This part maintains all electrical characteristics of the original MAX4040EUA-T while offering active product status and availability in Tape & Reel packaging format. Both parts are ROHS3 compliant with MSL 1 rating.

For General Purpose Applications with Extended Temperature Range: The MCP6141T-E/MS provides general purpose amplification with extended operating temperature range (-40°C to 125°C) compared to the MAX4040EUA-T (-40°C to 85°C). This Microchip device maintains rail-to-rail output, 8-MSOP packaging, and surface mount configuration. The MCP6141T-E/MS is ROHS3 compliant with MSL 1 rating. Electrical differences include lower slew rate (0.003 V/µs vs. 0.04 V/µs) and higher input offset voltage (3 mV vs. 250 µV). High inventory availability (704 Pcs) supports procurement continuity.

For General Purpose Applications with Standard Temperature Range: The MCP6141T-I/MS operates within the standard temperature range (-40°C to 85°C) matching the MAX4040EUA-T. This device offers the highest inventory availability (22800 Pcs) among all substitutes. Electrical characteristics are identical to MCP6141T-E/MS. ROHS3 compliance and MSL 1 rating are maintained.

For Enhanced Performance Requirements: The ADA4528-1ARMZ-R7 is selected when superior electrical performance is required. This zero-drift amplifier provides significantly improved specifications: slew rate of 0.5 V/µs (12.5× higher), gain bandwidth product of 4 MHz (44× higher), input bias current of 90 pA (22× lower), and input offset voltage of 0.3 µV (833× lower). Operating temperature range extends to 125°C. The device maintains rail-to-rail output, 8-MSOP packaging, and surface mount configuration. ROHS3 compliance and MSL 1 rating apply. Inventory availability is 3505 Pcs.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original MAX4040EUA-T.

Frequently Asked Questions (FAQ)

Q: Can MAX4040EUA+T be used as a direct replacement for MAX4040EUA-T? A: Yes. MAX4040EUA+T is the direct equivalent with identical electrical specifications, package type (8-TSSOP/8-MSOP), and mounting configuration. The only difference is packaging format (Tape & Reel) and active product status. Both are ROHS3 compliant with MSL 1 rating.

Q: What are the key differences between MCP6141 series and MAX4040EUA-T? A: The MCP6141 series (MCP6141T-I/MS, MCP6141T-E/MS, MCP6141-E/MS, MCP6141-I/MS) maintains general purpose amplifier functionality, rail-to-rail output, and 8-MSOP packaging. Electrical differences include: slew rate of 0.003 V/µs (vs. 0.04 V/µs), gain bandwidth product of 100 kHz (vs. 90 kHz), input bias current of 1 pA (vs. 2 nA), and input offset voltage of 3 mV (vs. 250 µV). Supply current is significantly lower at 600 nA vs. 14 µA. Output current capability is higher at 20 mA vs. 2.5 mA.

Q: When should ADA4528-1ARMZ-R7 be selected over MCP6141 devices? A: Select ADA4528-1ARMZ-R7 when applications require superior precision and speed. This zero-drift amplifier provides 12.5× higher slew rate, 44× higher gain bandwidth product, 22× lower input bias current, and 833× lower input offset voltage. Extended operating temperature range (-40°C to 125°C) supports wider environmental conditions. Higher output current (40 mA vs. 2.5 mA) accommodates demanding load requirements.

Q: Are all substitute parts compatible with the same PCB footprint? A: Yes. All substitute parts use 8-TSSOP or 8-MSOP packaging with 0.118" (3.00mm) width, maintaining identical surface mount footprint compatibility with MAX4040EUA-T designs.

Q: What is the difference between MCP6141T-I/MS and MCP6141T-E/MS? A: Both devices are identical in electrical specification and packaging. The primary difference is operating temperature range: MCP6141T-I/MS operates -40°C to 85°C, while MCP6141T-E/MS operates -40°C to 125°C. Select MCP6141T-E/MS for extended temperature applications.

Q: Do all substitute parts meet RoHS and REACH compliance? A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of MAX4040EUA-T.

Q: What packaging options are available for substitute parts? A: MAX4040EUA+T is supplied in Tape & Reel format. MCP6141T-E/MS is supplied in Tape & Reel. MCP6141T-I/MS is supplied in Cut Tape. ADA4528-1ARMZ-R7 is supplied in Cut Tape & Digi-Reel. All maintain 8-MSOP surface mount configuration.

Q: Which substitute offers the highest inventory availability? A: MCP6141T-I/MS provides the highest inventory with 22800 Pcs in stock, followed by ADA4528-1ARMZ-R7 with 3505 Pcs and ADA4528-1ARMZ with 2113 Pcs.

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