MAX4018ESD Equivalent & Substitute Parts

Part Overview

The MAX4018ESD is a voltage feedback operational amplifier featuring three independent circuits in a 14-SOIC surface mount package. This device is designed for rail-to-rail output applications requiring high slew rate performance and moderate bandwidth. The MAX4018ESD is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing design support and procurement continuity.

Substiute Parts

MAX4018ESD

Analog Devices Inc./Maxim IntegratedIn Stock: 2148MAX4018ESD Datasheet

Current PartRFQ

MAX4018ESD+

Analog Devices Inc./Maxim IntegratedIn Stock: 786MAX4018ESD+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4018ESD is determined by strict equivalence across all electrical and mechanical parameters. The critical substitution criteria are:

Electrical Parameters (Must Match):

• Amplifier topology: Voltage feedback configuration
• Circuit count: Three independent operational amplifier circuits
• Output architecture: Rail-to-rail capability
• Slew rate: 600 V/µs minimum
• Bandwidth: 150 MHz at -3dB
• Input bias current: 5.4 µA maximum
• Input offset voltage: 4 mV maximum
• Supply current: 5.5 mA per three channels
• Output current per channel: 120 mA minimum
• Supply voltage range: 3.15 V to 11 V

Mechanical Parameters (Must Match):

• Package type: 14-SOIC surface mount
• Package dimensions: 0.154" width (3.90 mm)
• Mounting technology: Surface mount

The MAX4018ESD+ qualifies as a direct substitute based on identical electrical specifications and mechanical packaging. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX4018ESD+ is a direct electrical and mechanical equivalent to the MAX4018ESD. Selection between these parts should be based on the following factors:

Product Status Consideration: The MAX4018ESD is classified as obsolete, while the MAX4018ESD+ maintains active product status. For new designs or long-term production requirements, the MAX4018ESD+ is the appropriate selection due to ongoing manufacturer support and availability.

Compliance and Regulatory Status: The MAX4018ESD+ achieves ROHS3 compliance, whereas the original MAX4018ESD is RoHS non-compliant. Applications subject to RoHS directives or customer requirements for RoHS-compliant components must use the MAX4018ESD+.

Packaging and Supply Chain: The MAX4018ESD+ is supplied in tube packaging, which differs from the main part specification. Both parts maintain identical electrical performance and 14-SOIC surface mount package dimensions, ensuring direct PCB compatibility.

Inventory and Procurement: The MAX4018ESD+ is available in active inventory (703 pcs), while the MAX4018ESD is classified as obsolete. For procurement planning, the MAX4018ESD+ represents the sustainable long-term source.

Frequently Asked Questions (FAQ)

Q: Can the MAX4018ESD+ be used as a direct replacement for the MAX4018ESD in existing designs?

A: Yes. The MAX4018ESD+ is electrically and mechanically identical to the MAX4018ESD. All electrical parameters, including slew rate, bandwidth, supply current, output current, and supply voltage range, are identical. The 14-SOIC package dimensions are identical, ensuring direct PCB compatibility without layout modifications.

Q: What is the primary reason to transition from MAX4018ESD to MAX4018ESD+?

A: The MAX4018ESD is obsolete, while the MAX4018ESD+ maintains active product status. The MAX4018ESD+ also achieves ROHS3 compliance, making it suitable for applications with regulatory requirements or customer specifications mandating RoHS compliance.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are specified identically across all electrical parameters: 600 V/µs slew rate, 150 MHz bandwidth, 5.4 µA input bias current, 4 mV input offset voltage, 5.5 mA supply current, and 120 mA output current per channel. Supply voltage range is identical at 3.15 V to 11 V.

Q: Does the packaging format difference affect component selection?

A: The MAX4018ESD+ is supplied in tube packaging, while the original part specification does not define a packaging format. Both parts use the identical 14-SOIC surface mount package with 0.154" width (3.90 mm). Tube packaging is a supply format consideration only and does not affect electrical performance or PCB mounting.

Q: What is the operating temperature range for both parts?

A: Both the MAX4018ESD and MAX4018ESD+ operate across the identical temperature range of -40°C to 85°C.

Q: Are there any moisture sensitivity considerations?

A: Both parts are classified as Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.