MAX4254ESD Equivalent & Substitute Parts Reference

Part Overview

The MAX4254ESD is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package, manufactured by Analog Devices Inc./Maxim Integrated. This device is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

The MAX4254ESD provides push-pull, rail-to-rail output configuration with a 3 MHz gain-bandwidth product and operates across a 2.4 V to 5.5 V supply range. With a slew rate of 0.3 V/µs and input bias current of 0.1 pA, this amplifier serves general-purpose signal conditioning and buffering applications.

Due to its obsolete status, substitute components must be evaluated based on electrical compatibility, package equivalence, and operational parameter alignment to ensure seamless integration into existing and new circuit designs.

Key Parameters

Parameter	MAX4254ESD	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Push-Pull, Rail-to-Rail	—
Slew Rate	0.3	V/µs
Gain Bandwidth Product	3	MHz
Current - Input Bias	0.1	pA
Voltage - Input Offset	70	µV
Current - Supply (x4 Channels)	420	µA
Current - Output / Channel	68	mA
Voltage - Supply Span (Min)	2.4	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 85	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	RoHS non-compliant	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the MAX4254ESD requires alignment across the following critical parameters:

Mandatory Compatibility Criteria:

Package type: 14-SOIC surface-mount configuration
Circuit count: Four independent amplifier circuits
Output configuration: Rail-to-rail capability
Supply voltage range: Minimum 2.4 V to maximum 5.5 V overlap
Operating temperature: Support for -40°C to 85°C minimum

Electrical Performance Considerations: Substitute parts must maintain functional equivalence in gain-bandwidth product (3 MHz reference), slew rate (0.3 V/µs reference), and output current capability (68 mA per channel reference). Input bias current and input offset voltage specifications define precision requirements for signal conditioning applications.

Compliance and Availability: Substitute components are grouped by product status (active vs. last-time-buy), RoHS compliance status, and current inventory availability. Active, RoHS3-compliant alternatives are prioritized for new designs, while last-time-buy components serve legacy production requirements.

The substitute parts identified below satisfy these criteria through equivalent or superior electrical specifications within the 14-SOIC package constraint.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Output Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status	RoHS
MAX4254ESD	Analog Devices	General Purpose	4	Push-Pull, Rail-to-Rail	0.3	3	0.1	70	420	68	2.4	5.5	-40 to 85	14-SOIC	Obsolete	Non-compliant
LMV324ID	Texas Instruments	General Purpose	4	Rail-to-Rail	1	1	15	1700	410	40	2.7	5.5	-40 to 125	14-SOIC	Last Time Buy	ROHS3
LMV324QD	Texas Instruments	General Purpose	4	Rail-to-Rail	1	1	15	1700	410	40	2.7	5.5	-40 to 125	14-SOIC	Last Time Buy	ROHS3
MCP604-E/SL	Microchip Technology	CMOS	4	Rail-to-Rail	2.3	2.8	1	700	230	22	2.7	6	-40 to 125	14-SOIC	Active	ROHS3
MCP604-I/SL	Microchip Technology	CMOS	4	Rail-to-Rail	2.3	2.8	1	700	230	22	2.7	6	-40 to 85	14-SOIC	Active	ROHS3
MCP604T-E/SL	Microchip Technology	CMOS	4	Rail-to-Rail	2.3	2.8	1	700	230	22	2.7	6	-40 to 125	14-SOIC	Active	ROHS3
MCP604T-I/SL	Microchip Technology	CMOS	4	Rail-to-Rail	2.3	2.8	1	700	230	22	2.7	6	-40 to 85	14-SOIC	Active	ROHS3
MCP6274-E/SL	Microchip Technology	General Purpose	4	Rail-to-Rail	0.9	2	1	3000	170	25	2	6	-40 to 125	14-SOIC	Active	ROHS3
MCP6274T-E/SL	Microchip Technology	General Purpose	4	Rail-to-Rail	0.9	2	1	3000	170	25	2	6	-40 to 125	14-SOIC	Active	ROHS3
MCP6474-E/SL	Microchip Technology	CMOS	4	Rail-to-Rail	1.1	2	1	1500	100	32	2	5.5	-40 to 125	14-SOIC	Active	ROHS3
MCP6474T-E/SL	Microchip Technology	CMOS	4	Rail-to-Rail	1.1	2	1	1500	100	32	2	5.5	-40 to 125	14-SOIC	Active	ROHS3

Engineering Selection Recommendations

For New Designs (RoHS3 Compliance Required):

The MCP604T-I/SL and MCP604T-E/SL represent the primary substitutes for new production. Both devices are active, RoHS3-compliant, and available in tape-and-reel packaging with high inventory levels (20,900 and 1,771 units respectively). The MCP604 series provides superior slew rate (2.3 V/µs) and extended supply voltage range (2.7 V to 6 V) compared to the MAX4254ESD. The -40°C to 125°C operating temperature range of the MCP604T-E/SL variant supports extended thermal environments.

The MCP6274T-E/SL offers an alternative general-purpose topology with active status and RoHS3 compliance. This device features lower supply current (170 µA across four channels) and extended supply range (2 V to 6 V), making it suitable for low-power applications. Inventory availability is substantial at 20,997 units.

For Legacy Production (Last-Time-Buy Scenarios):

The LMV324QD and LMV324ID from Texas Instruments provide general-purpose amplifier functionality with RoHS3 compliance and last-time-buy status. These devices support the -40°C to 125°C temperature range and maintain rail-to-rail output configuration. Inventory levels are limited (1,035 and 3,200 units respectively), requiring procurement planning for sustained production.

For Low-Power Applications:

The MCP6474-E/SL and MCP6474T-E/SL deliver the lowest supply current consumption (100 µA across four channels) with active product status and RoHS3 compliance. These CMOS amplifiers support -40°C to 125°C operation and provide adequate slew rate (1.1 V/µs) for general-purpose signal conditioning.

Supply Voltage Compatibility:

Applications requiring operation below 2.7 V must utilize the MCP6274-E/SL or MCP6274T-E/SL, which support minimum supply voltage of 2 V. All other substitutes require minimum 2.7 V supply.

Output Current Requirements:

Applications demanding output current exceeding 40 mA per channel should prioritize the MAX4254ESD (68 mA), MCP6474 series (32 mA), or MCP6274 series (25 mA). The MCP604 series provides only 22 mA per channel output current.

Frequently Asked Questions (FAQ)

Q: Can the MCP604T-I/SL directly replace the MAX4254ESD in existing designs?

A: The MCP604T-I/SL is electrically compatible within the 14-SOIC package and supports the required supply voltage range (2.7 V to 5.5 V overlap). However, the reduced output current per channel (22 mA versus 68 mA) and lower slew rate (2.3 V/µs versus 0.3 V/µs) must be verified against circuit requirements. The MCP604T-I/SL operates across -40°C to 85°C, matching the MAX4254ESD temperature range.

Q: What is the primary difference between MCP604-E/SL and MCP604T-E/SL?

A: Both devices are electrically identical CMOS amplifiers with identical electrical specifications. The primary distinction is packaging: MCP604-E/SL is supplied in tube packaging, while MCP604T-E/SL is supplied in tape-and-reel format. The MCP604T-E/SL variant supports extended operating temperature (-40°C to 125°C) compared to the standard -40°C to 85°C range.

Q: Are the LMV324 variants suitable for new designs?

A: The LMV324ID and LMV324QD are classified as last-time-buy components, indicating limited future availability. While RoHS3-compliant and functionally equivalent, these devices are not recommended for new designs. Active alternatives such as the MCP604 or MCP6274 series are preferred for long-term production sustainability.

Q: Which substitute provides the lowest power consumption?

A: The MCP6474-E/SL and MCP6474T-E/SL deliver the lowest supply current at 100 µA across four channels, compared to 420 µA for the MAX4254ESD. These CMOS amplifiers are suitable for battery-powered and low-power applications requiring extended operating temperature support (-40°C to 125°C).

Q: What is the minimum supply voltage supported by substitute parts?

A: The MCP6274-E/SL and MCP6274T-E/SL support the lowest minimum supply voltage at 2 V. All other substitutes require minimum 2.7 V supply. The MAX4254ESD operates at 2.4 V minimum, placing it between these two groups.

Q: Can I use MCP6274 series in applications requiring high output current?

A: The MCP6274 series provides 25 mA per channel output current, which is lower than the MAX4254ESD (68 mA). Applications requiring output current exceeding 25 mA should evaluate the MCP6474 series (32 mA) or confirm that reduced output current is acceptable for the specific circuit topology.

Q: Are all substitute parts RoHS3-compliant?

A: All identified substitute parts are RoHS3-compliant. The MAX4254ESD is RoHS non-compliant, making RoHS3-compliant substitutes mandatory for applications subject to RoHS regulations.

Q: What is the difference between general-purpose and CMOS amplifier types?

A: General-purpose amplifiers (LMV324, MCP6274 series) are optimized for broad application compatibility with moderate power consumption. CMOS amplifiers (MCP604, MCP6474 series) feature lower input bias current (1 pA versus 15 nA for LMV324) and reduced supply current, making them suitable for precision and low-power applications. Selection depends on specific circuit requirements for input impedance and power budget.

Q: Which substitute has the highest gain-bandwidth product?

A: The MAX4254ESD provides 3 MHz gain-bandwidth product. Among substitutes, the MCP604 series delivers 2.8 MHz, while the MCP6274 and MCP6474 series provide 2 MHz. Applications requiring maximum bandwidth should prioritize the MCP604 series.

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