MAX4254ESD+ Equivalent & Substitute Parts Reference

Part Overview

The MAX4254ESD+ is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, configured as a 4-circuit push-pull, rail-to-rail amplifier in a 14-SOIC surface-mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

The MAX4254ESD+ operates across a supply voltage range of 2.4 V to 5.5 V with a slew rate of 0.3 V/µs and a gain bandwidth product of 3 MHz. Its push-pull output configuration and rail-to-rail capability make it suitable for low-voltage analog signal processing applications.

Key Parameters

Parameter	Value	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	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the MAX4254ESD+ is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 14-SOIC surface-mount package with identical 0.154" (3.90 mm) width to ensure PCB footprint compatibility.

Circuit Configuration: The substitute must provide 4 independent amplifier circuits in a single package to maintain functional equivalence.

Output Architecture: Rail-to-rail output capability is required for operation across the full supply voltage range. Push-pull output is preferred but not mandatory if rail-to-rail performance is maintained.

Supply Voltage Range: Substitute parts must support operation within or encompass the 2.4 V to 5.5 V supply range. Parts with extended ranges (2 V to 6 V) are acceptable.

Electrical Performance: Slew rate, gain bandwidth product, input bias current, and input offset voltage determine signal fidelity. Substitutes with equal or superior performance in these parameters are functionally compatible.

Operating Temperature: The original part operates from -40°C to 85°C. Substitutes with extended temperature ranges (-40°C to 125°C) provide additional design margin.

Compliance & Certification: All substitute parts must maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status to ensure regulatory and environmental compatibility.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status
MAX4254ESD+	Analog Devices	General Purpose	0.3	3	0.0001	0.070	420	68	2.4	5.5	-40 to 85	Obsolete
LMV324ID	Texas Instruments	General Purpose	1.0	1	15	1.7	410	40	2.7	5.5	-40 to 125	Last Time Buy
LMV324QD	Texas Instruments	General Purpose	1.0	1	15	1.7	410	40	2.7	5.5	-40 to 125	Last Time Buy
MCP604-E/SL	Microchip Technology	CMOS	2.3	2.8	0.001	0.700	230	22	2.7	6.0	-40 to 125	Active
MCP604-I/SL	Microchip Technology	CMOS	2.3	2.8	0.001	0.700	230	22	2.7	6.0	-40 to 85	Active
MCP604T-E/SL	Microchip Technology	CMOS	2.3	2.8	0.001	0.700	230	22	2.7	6.0	-40 to 125	Active
MCP604T-I/SL	Microchip Technology	CMOS	2.3	2.8	0.001	0.700	230	22	2.7	6.0	-40 to 85	Active
MCP6274-E/SL	Microchip Technology	General Purpose	0.9	2	0.001	3.0	170	25	2.0	6.0	-40 to 125	Active
MCP6274T-E/SL	Microchip Technology	General Purpose	0.9	2	0.001	3.0	170	25	2.0	6.0	-40 to 125	Active
MCP6474-E/SL	Microchip Technology	CMOS	1.1	2	0.001	1.5	100	32	2.0	5.5	-40 to 125	Active
MCP6474T-E/SL	Microchip Technology	CMOS	1.1	2	0.001	1.5	100	32	2.0	5.5	-40 to 125	Active

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The MCP604T-I/SL and MCP604T-E/SL from Microchip Technology are recommended as primary substitutes. Both parts maintain 14-SOIC packaging, 4-circuit configuration, and rail-to-rail output. The MCP604 series offers superior slew rate (2.3 V/µs) and comparable gain bandwidth product (2.8 MHz). These parts are in active production status with extended temperature range support (-40°C to 125°C for MCP604T-E/SL). Supply availability is high (1,771 and 1,442 units respectively). Both maintain full ROHS3 compliance and MSL Level 1 rating.

The MCP6274T-E/SL provides an alternative with lower supply current (170 µA vs. 420 µA), beneficial for power-constrained applications. This part supports extended supply voltage range (2.0 V to 6.0 V) and maintains active production status with 20,997 units in stock.

Secondary Substitutes (Last Time Buy Status):

The LMV324QD and LMV324ID from Texas Instruments are available as secondary options. Both provide 4-circuit general-purpose amplifier configuration in 14-SOIC packaging with rail-to-rail output. These parts are classified as Last Time Buy, indicating limited future availability. Supply voltage range is 2.7 V to 5.5 V, and operating temperature extends to 125°C. Input bias current is higher (15 nA) compared to the original part.

Low-Power Alternative:

The MCP6474T-E/SL offers the lowest supply current (100 µA) among all substitutes, making it suitable for battery-powered or ultra-low-power applications. It maintains 4-circuit configuration, rail-to-rail output, and active production status with 6,400 units available.

Compliance Verification:

All recommended substitutes maintain ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), and REACH unaffected status, ensuring regulatory compatibility with the original MAX4254ESD+.

Frequently Asked Questions (FAQ)

Q: Can I directly replace MAX4254ESD+ with MCP604T-I/SL without PCB modifications?

A: Yes. Both parts use identical 14-SOIC packaging with 0.154" (3.90 mm) width. Pin-to-pin compatibility is maintained for 4-circuit operational amplifier configurations. No PCB layout changes are required.

Q: What is the key difference between MCP604 and MCP6274 series?

A: The MCP604 is a CMOS amplifier with higher slew rate (2.3 V/µs) and lower input offset voltage (700 µV). The MCP6274 is a general-purpose amplifier with lower supply current (170 µA vs. 230 µA) and extended supply voltage range (2.0 V to 6.0 V). Selection depends on application requirements for speed versus power consumption.

Q: Why is the MAX4254ESD+ classified as obsolete?

A: The MAX4254ESD+ is no longer in active production. Equivalent parts from Microchip Technology and Texas Instruments provide superior performance characteristics and are actively manufactured, making them preferred alternatives for new designs and production continuity.

Q: Are there temperature range limitations when substituting with LMV324QD?

A: The LMV324QD supports -40°C to 125°C operating temperature, which exceeds the original MAX4254ESD+ range (-40°C to 85°C). This provides additional design margin for extended temperature applications. However, the part is classified as Last Time Buy, limiting long-term availability.

Q: What is the impact of different slew rates on circuit performance?

A: The MAX4254ESD+ has a slew rate of 0.3 V/µs. Substitutes like MCP604 (2.3 V/µs) and MCP6274 (0.9 V/µs) offer faster signal transitions. For applications requiring high-speed signal processing, faster slew rates reduce settling time and improve transient response. For low-frequency applications, slew rate differences are negligible.

Q: Can I use MCP6474T-E/SL in high-current output applications?

A: The MCP6474T-E/SL provides 32 mA output current per channel, compared to 68 mA for the MAX4254ESD+. Applications requiring output currents exceeding 32 mA per channel should use MCP604 series (22 mA) or LMV324 series (40 mA) as alternatives. For higher output current requirements, external buffering may be necessary.

Q: What is the significance of MSL Level 1 rating?

A: MSL (Moisture Sensitivity Level) Level 1 indicates unlimited shelf life without moisture control requirements. All recommended substitutes maintain this rating, ensuring compatibility with standard storage and handling procedures without special desiccant packaging or baking requirements.

Q: Are there supply voltage compatibility issues when switching from MAX4254ESD+ to substitutes?

A: The MAX4254ESD+ operates from 2.4 V to 5.5 V. Most substitutes support 2.7 V to 5.5 V or 2.0 V to 6.0 V ranges. Applications operating below 2.7 V require verification. The MCP6274 series supports 2.0 V minimum, providing compatibility with lower supply voltages.

Q: What packaging options are available for substitute parts?

A: All substitute parts are available in 14-SOIC surface-mount packaging. Microchip parts are offered in Tube, Cut Tape (CT) & Digi-Reel®, or Tape & Reel (TR) packaging options. Texas Instruments parts are supplied in Tube packaging. Selection depends on production volume and assembly requirements.

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