MAX4018EEE Equivalent & Substitute Parts

Part Overview

The MAX4018EEE is a voltage feedback operational amplifier featuring three independent circuits in a 16-QSOP surface mount package. This device is designed for rail-to-rail output applications requiring high-speed signal processing with moderate output current capability. The MAX4018EEE is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Voltage Feedback	—
Number of Circuits	3	—
Output Type	Rail-to-Rail	—
Slew Rate	600	V/µs
-3dB Bandwidth	150	MHz
Current - Input Bias	5.4	µA
Voltage - Input Offset	4	mV
Current - Supply (per 3 Channels)	5.5	mA
Current - Output / Channel	120	mA
Voltage - Supply Span (Min)	3.15	V
Voltage - Supply Span (Max)	11	V
Operating Temperature Range	-40 to 85	°C
Package / Case	16-SSOP (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the MAX4018EEE is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Amplifier topology (voltage feedback architecture)
Circuit count (3 independent operational amplifiers)
Output configuration (rail-to-rail capability)
Slew rate (600 V/µs minimum)
Bandwidth (-3dB at 150 MHz minimum)
Input bias current (5.4 µA maximum)
Input offset voltage (4 mV maximum)
Supply current per channel group (5.5 mA maximum)
Output current per channel (120 mA minimum)
Supply voltage range (3.15 V to 11 V)
Temperature operating range (-40°C to 85°C)

Physical Specifications:

Package type (16-SSOP surface mount)
Pin configuration and footprint compatibility

The substitute part must satisfy all electrical and physical parameters without deviation. Packaging format (tube versus alternative) does not affect electrical substitution eligibility.

Parameter Comparison

Parameter	MAX4018EEE	MAX4018EEE+	Match
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	✓
Amplifier Type	Voltage Feedback	Voltage Feedback	✓
Number of Circuits	3	3	✓
Output Type	Rail-to-Rail	Rail-to-Rail	✓
Slew Rate	600 V/µs	600 V/µs	✓
-3dB Bandwidth	150 MHz	150 MHz	✓
Current - Input Bias	5.4 µA	5.4 µA	✓
Voltage - Input Offset	4 mV	4 mV	✓
Current - Supply (x3 Channels)	5.5 mA	5.5 mA	✓
Current - Output / Channel	120 mA	120 mA	✓
Voltage - Supply Span (Min)	3.15 V	3.15 V	✓
Voltage - Supply Span (Max)	11 V	11 V	✓
Operating Temperature	-40°C to 85°C	-40°C to 85°C	✓
Package / Case	16-SSOP (0.154", 3.90mm Width)	16-SSOP (0.154", 3.90mm Width)	✓
Mounting Type	Surface Mount	Surface Mount	✓
Product Status	Obsolete	Active	—
RoHS Status	RoHS non-compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

MAX4018EEE+ as Direct Substitute:

The MAX4018EEE+ is electrically and mechanically identical to the MAX4018EEE across all specified parameters. Both devices share the same base product number (MAX4018), identical pin configuration, and equivalent electrical performance characteristics.

Compliance Advantage:

The MAX4018EEE+ holds Active product status, ensuring continued manufacturer support and availability. The MAX4018EEE+ is ROHS3 compliant, whereas the original MAX4018EEE is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the MAX4018EEE+ is the appropriate selection.

Availability Consideration:

The MAX4018EEE+ is currently in active production with documented inventory availability. The original MAX4018EEE, classified as obsolete, presents supply chain risk for new production requirements.

Application Continuity:

Direct substitution of MAX4018EEE+ for MAX4018EEE requires no circuit redesign, PCB layout modification, or firmware adjustment. Pin-for-pin compatibility and identical electrical specifications ensure functional equivalence in existing designs.

Frequently Asked Questions (FAQ)

Q: Can MAX4018EEE+ replace MAX4018EEE in existing designs without modification?

A: Yes. The MAX4018EEE+ is pin-for-pin compatible with identical electrical specifications across all operating parameters. No circuit redesign is required.

Q: What is the primary difference between MAX4018EEE and MAX4018EEE+?

A: The MAX4018EEE+ is the active production variant with ROHS3 compliance. The MAX4018EEE is obsolete. Electrical performance is identical.

Q: Are there packaging differences between these parts?

A: Both devices use 16-SSOP surface mount packages with identical footprints. Packaging format (tube for MAX4018EEE+) does not affect electrical substitution.

Q: What does "obsolete" status mean for the MAX4018EEE?

A: Obsolete status indicates the manufacturer has discontinued production. Existing inventory may be available from distributors, but long-term supply cannot be guaranteed. New designs should specify the active MAX4018EEE+ variant.

Q: Is the MAX4018EEE+ suitable for RoHS-regulated applications?

A: Yes. The MAX4018EEE+ is ROHS3 compliant. The original MAX4018EEE is not RoHS compliant and may not meet regulatory requirements for certain markets and applications.

Q: Do the three operational amplifier circuits within each device have independent power supply pins?

A: Both MAX4018EEE and MAX4018EEE+ share common power supply pins for all three circuits. Total supply current across all three channels is 5.5 mA maximum.

Q: What is the maximum output current per individual amplifier channel?

A: Each of the three operational amplifier circuits can deliver 120 mA output current maximum.

Q: Are there temperature-grade variants of these devices?

A: Both MAX4018EEE and MAX4018EEE+ operate across the -40°C to 85°C temperature range. No extended or industrial temperature variants are specified in the provided data.

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