MAX4461HESA Equivalent & Substitute Parts

Part Overview

The MAX4461HESA is an instrumentation amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for precision signal conditioning applications requiring rail-to-rail output capability. This device integrates one instrumentation amplifier circuit in an 8-SOIC surface mount package and operates across a supply voltage range of 2.85V to 5.25V.

The MAX4461HESA is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

MAX4461HESA

Analog Devices Inc./Maxim IntegratedIn Stock: 1130MAX4461HESA Datasheet

Current PartRFQ

MAX4462HESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1253MAX4462HESA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4461HESA is determined by strict equivalence across the following critical parameters:

Functional Parameters:

• Amplifier Type: Instrumentation
• Number of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 0.25 V/µs
• Gain Bandwidth Product: 2.5 MHz
• -3dB Bandwidth: 25 kHz
• Current - Input Bias: 1 pA
• Current - Supply: 800 µA
• Current - Output / Channel: 150 mA

Electrical Operating Range:

• Voltage - Supply Span: 2.85V to 5.25V
• Operating Temperature: -40°C to 85°C

Physical & Environmental Compliance:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The MAX4462HESA+ meets all functional, electrical, and physical requirements for direct substitution. The primary distinction is the Voltage - Input Offset specification, where the substitute part offers improved performance (50 µV versus 100 µV).

Parameter Comparison

Engineering Selection Recommendations

The MAX4462HESA+ is a direct functional substitute for the MAX4461HESA. Both devices share identical electrical performance specifications, package geometry, and environmental compliance certifications.

Product Status Consideration: The MAX4461HESA is classified as obsolete, while the MAX4462HESA+ maintains active product status. This distinction ensures ongoing manufacturer support, continued availability, and compliance with current regulatory requirements.

Compliance & Certification: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. No additional qualification or environmental testing is required for substitution.

Performance Differential: The MAX4462HESA+ provides improved input offset voltage specification (50 µV versus 100 µV). This enhancement does not introduce incompatibility; it represents superior performance within the same functional class.

Packaging & Assembly: Identical 8-SOIC surface mount package specifications ensure direct PCB compatibility without layout or assembly process modifications.

Frequently Asked Questions (FAQ)

Q: Can the MAX4462HESA+ be used as a direct replacement for the MAX4461HESA in existing designs?

A: Yes. The MAX4462HESA+ meets all functional, electrical, and physical specifications required for direct substitution. No circuit modifications or PCB redesign is necessary.

Q: What is the primary difference between these two parts?

A: The MAX4462HESA+ specifies a lower input offset voltage (50 µV) compared to the MAX4461HESA (100 µV). All other electrical and physical parameters are identical.

Q: Are there any package compatibility concerns?

A: No. Both devices use the identical 8-SOIC (0.154", 3.90mm Width) surface mount package. PCB footprints, solder reflow profiles, and assembly processes remain unchanged.

Q: Why is the MAX4461HESA classified as obsolete?

A: Product obsolescence is determined by the manufacturer. The MAX4462HESA+ is the active equivalent and recommended for new designs and long-term supply continuity.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the MAX4461HESA and MAX4462HESA+ are ROHS3 compliant and REACH unaffected. MSL 1 (unlimited) moisture sensitivity applies to both devices.

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

A: Both devices operate across -40°C to 85°C. No temperature-related limitations exist for substitution.

Q: Are there inventory or lead time differences between these parts?

A: Inventory status is subject to real-time availability. The MAX4462HESA+ maintains active product status, which typically ensures more consistent supply availability compared to obsolete parts.