MAX4284ESD Equivalent & Substitute Parts

Part Overview

The MAX4284ESD is a general purpose operational amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This device contains four independent amplifier circuits in a 14-SOIC surface mount package with rail-to-rail output capability. The MAX4284ESD is classified as obsolete product status, making equivalent and substitute parts necessary for new designs and ongoing production requirements.

The MAX4284ESD operates across a supply voltage range of 2.5V to 5.5V with a gain bandwidth product of 2 MHz and slew rate of 0.7V/µs. With four channels per package and a maximum output current of 65 mA per channel, this device is suitable for general purpose amplification applications requiring low power consumption and compact packaging.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	MAX4284ESD	—
Manufacturer	Analog Devices Inc./Maxim Integrated	—
Category	Linear, Amplifiers	—
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	0.7	V/µs
Gain Bandwidth Product	2	MHz
Current - Input Bias	50	pA
Voltage - Input Offset	500	µV
Current - Supply (x4 Channels)	320	µA
Current - Output / Channel	65	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 85	°C
Product Status	Obsolete	—
RoHS Status	RoHS non-compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MAX4284ESD is determined by the following critical parameters that must be matched or exceeded:

Package Compatibility: All substitute parts must use the 14-SOIC surface mount package with 0.154" (3.90mm) width to ensure direct PCB footprint compatibility without layout modifications.

Circuit Configuration: The substitute must contain four independent amplifier circuits per package to maintain the same channel density and reduce component count.

Output Architecture: Rail-to-rail output capability is required to preserve the full supply voltage swing performance of the original design.

Electrical Performance Envelope: Substitute parts must operate within the supply voltage range of 2.5V to 5.5V minimum. The gain bandwidth product of 2 MHz and slew rate of 0.7V/µs establish the baseline performance threshold. Substitutes with equal or superior performance in these parameters are acceptable.

Amplifier Type Flexibility: While the MAX4284ESD is classified as general purpose, substitute parts may be either general purpose or CMOS type, provided all other electrical and mechanical parameters are compatible.

Temperature Range: The operating temperature range of -40°C to 85°C is the baseline requirement. Substitutes with extended temperature ranges (-40°C to 125°C) are acceptable and provide additional design margin.

Compliance Status: Active product status and RoHS3 compliance are preferred for new designs to ensure long-term availability and regulatory alignment.

Parameter Comparison

Parameter	MAX4284ESD	MCP604-E/SL	MCP604-I/SL	MCP604T-E/SL	MCP604T-I/SL	MCP6274-E/SL	MCP6274T-E/SL	MCP6474-E/SL	MCP6474T-E/SL	MCP6484-E/SL	MCP6L4T-E/SL
Manufacturer	Analog Devices	Microchip	Microchip	Microchip	Microchip	Microchip	Microchip	Microchip	Microchip	Microchip	Microchip
Number of Circuits	4	4	4	4	4	4	4	4	4	4	4
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate (V/µs)	0.7	2.3	2.3	2.3	2.3	0.9	0.9	1.1	1.1	2.7	2.3
Gain Bandwidth Product (MHz)	2	2.8	2.8	2.8	2.8	2	2	2	2	4	2.8
Current - Input Bias (pA)	50	1	1	1	1	1	1	1	1	1	1
Voltage - Input Offset (mV)	0.5	0.7	0.7	0.7	0.7	3	3	1.5	1.5	1.5	1
Current - Supply (µA, x4 Channels)	320	230	230	230	230	170	170	100	100	240	200
Current - Output / Channel (mA)	65	22	22	22	22	25	25	32	32	12	20
Voltage - Supply Span Min (V)	2.5	2.7	2.7	2.7	2.7	2	2	2	2	2.2	2.7
Voltage - Supply Span Max (V)	5.5	6	6	6	6	6	6	5.5	5.5	5.5	6
Operating Temperature (°C)	-40 to 85	-40 to 125	-40 to 85	-40 to 125	-40 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes for Direct Replacement:

The MCP6274-E/SL and MCP6274T-E/SL are the closest functional equivalents to the MAX4284ESD. Both devices maintain the same gain bandwidth product of 2 MHz and slew rate of 0.9V/µs, which closely matches the original specification of 0.7V/µs. These general purpose amplifiers operate across an extended supply voltage range of 2V to 6V, providing compatibility with the MAX4284ESD supply envelope of 2.5V to 5.5V. Both parts are active products with RoHS3 compliance and extended operating temperature range to 125°C, ensuring long-term design viability.

Secondary Substitutes with Enhanced Performance:

The MCP6474-E/SL and MCP6474T-E/SL offer improved slew rate performance at 1.1V/µs with the same 2 MHz gain bandwidth product. These CMOS amplifiers provide lower supply current consumption at 100µA across four channels compared to the MAX4284ESD at 320µA, making them suitable for power-sensitive applications. The supply voltage range of 2V to 5.5V encompasses the original specification.

The MCP6484-E/SL provides the highest performance option with a 4 MHz gain bandwidth product and 2.7V/µs slew rate. This general purpose amplifier is suitable for applications requiring faster signal processing while maintaining the same 14-SOIC package footprint. The supply voltage range of 2.2V to 5.5V is compatible with the original design.

Compliance and Availability Considerations:

All recommended substitute parts are active products with RoHS3 compliance status, ensuring regulatory alignment and long-term component availability. The MCP604 series (MCP604-E/SL, MCP604-I/SL, MCP604T-E/SL, MCP604T-I/SL) offers CMOS technology with superior input bias current performance at 1 pA and extended temperature range to 125°C. These parts are suitable for applications where lower input bias current is beneficial.

The MCP6L4T-E/SL provides a balanced alternative with general purpose amplifier characteristics, 2.8 MHz gain bandwidth product, and 2.3V/µs slew rate. This part operates across 2.7V to 6V supply range with RoHS3 compliance and extended temperature rating.

Frequently Asked Questions (FAQ)

Q: Can I directly replace MAX4284ESD with any of the listed substitute parts?

A: Yes, all listed substitute parts are pin-compatible and package-compatible with the MAX4284ESD in the 14-SOIC surface mount package. Direct PCB substitution is possible without layout modifications. However, electrical performance characteristics differ, so circuit performance should be evaluated based on the specific application requirements.

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

A: The MCP604 series uses CMOS amplifier technology with extremely low input bias current of 1 pA and higher slew rate of 2.3V/µs. The MCP6274 series uses general purpose amplifier technology with the same 1 pA input bias current but lower slew rate of 0.9V/µs. Both series maintain the same 2 MHz or 2.8 MHz gain bandwidth product depending on the specific part number.

Q: Which substitute part offers the lowest power consumption?

A: The MCP6474-E/SL and MCP6474T-E/SL offer the lowest supply current consumption at 100µA across four channels, compared to the MAX4284ESD at 320µA. This represents a 69% reduction in total supply current, making these parts ideal for battery-powered or power-constrained applications.

Q: Are all substitute parts RoHS compliant?

A: Yes, all listed substitute parts carry RoHS3 compliance status. The original MAX4284ESD is RoHS non-compliant. Substitution with any of the listed parts ensures compliance with current environmental and regulatory requirements.

Q: What is the difference between tube and tape & reel packaging options?

A: Tube packaging (indicated by part numbers without "T" suffix) is suitable for lower-volume applications and manual assembly processes. Tape & Reel packaging (indicated by "T" in the part number) is designed for high-volume automated assembly and reel-based pick-and-place equipment. Both packaging options contain the same die and electrical specifications; the difference is in the physical delivery format.

Q: Can I use MCP6484-E/SL as a drop-in replacement if my application requires higher bandwidth?

A: The MCP6484-E/SL is pin-compatible and package-compatible with the MAX4284ESD, so physical substitution is possible. This part offers 4 MHz gain bandwidth product and 2.7V/µs slew rate, providing enhanced performance for applications requiring faster signal processing. The supply voltage range of 2.2V to 5.5V is compatible with the original design specification.

Q: What is the operating temperature range difference between substitute parts?

A: The MAX4284ESD operates from -40°C to 85°C. Most substitute parts extend this range to -40°C to 125°C, providing additional design margin for high-temperature environments. The MCP604-I/SL and MCP604T-I/SL maintain the -40°C to 85°C range, matching the original specification.

Q: Which substitute part most closely matches the original MAX4284ESD performance?

A: The MCP6274-E/SL and MCP6274T-E/SL provide the closest performance match with 2 MHz gain bandwidth product and 0.9V/µs slew rate, closely approximating the original 0.7V/µs specification. These general purpose amplifiers maintain the same circuit configuration and output characteristics while offering active product status and RoHS3 compliance.

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