MAX4527ESA Equivalent & Substitute Parts

Part Overview

The MAX4527ESA is a dual SPDT (Single Pole Double Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component integrates two independent 2:1 multiplexer/demultiplexer circuits with 175Ohm on-state resistance in an 8-SOIC surface mount package. The MAX4527ESA is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity.

Substiute Parts

MAX4527ESA
Analog Devices Inc./Maxim IntegratedIn Stock: 2474MAX4527ESA Datasheet
MAX4527ESA
Current Part
MAX4527ESA+
Analog Devices Inc./Maxim IntegratedIn Stock: 2258MAX4527ESA+ Datasheet
MAX4527ESA+
Direct

Key Parameters

Parameter Value
Switch Circuit Configuration SPDT
Number of Circuits 2
Multiplexer/Demultiplexer Ratio 2:1
On-State Resistance (Max) 175Ohm
Channel-to-Channel Matching (ΔRon) 500mOhm
Supply Voltage - Single (V+) 4.5V ~ 36V
Supply Voltage - Dual (V±) ±4.5V ~ 18V
Charge Injection 1pC
Channel Capacitance (CS(off), CD(off)) 13pF
Current - Leakage (IS(off)) (Max) 500pA
Operating Temperature Range -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)

Substitute Part Grouping Explanation

Substitution of the MAX4527ESA is determined by strict equivalence across the following critical parameters:

  • Switch Architecture: SPDT configuration with 2:1 multiplexer/demultiplexer functionality
  • Circuit Count: Exactly 2 independent circuits
  • On-State Resistance: 175Ohm maximum
  • Resistance Matching: 500mOhm channel-to-channel tolerance
  • Supply Voltage Range: 4.5V ~ 36V (single supply) and ±4.5V ~ 18V (dual supply)
  • Electrical Characteristics: Charge injection (1pC), channel capacitance (13pF), leakage current (500pA maximum)
  • Package Specification: 8-SOIC surface mount form factor
  • Operating Temperature: -40°C ~ 85°C

The MAX4527ESA+ meets all these criteria and serves as a direct functional equivalent with improved product status and compliance certifications.

Parameter Comparison

Parameter MAX4527ESA MAX4527ESA+
Switch Circuit SPDT SPDT
Number of Circuits 2 2
Multiplexer/Demultiplexer Ratio 2:1 2:1
On-State Resistance (Max) 175Ohm 175Ohm
Channel-to-Channel Matching (ΔRon) 500mOhm 500mOhm
Supply Voltage - Single (V+) 4.5V ~ 36V 4.5V ~ 36V
Supply Voltage - Dual (V±) ±4.5V ~ 18V ±4.5V ~ 18V
Charge Injection 1pC 1pC
Channel Capacitance (CS(off), CD(off)) 13pF 13pF
Current - Leakage (IS(off)) (Max) 500pA 500pA
Operating Temperature Range -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Product Status Obsolete Active
RoHS Status RoHS non-compliant ROHS3 Compliant
Packaging Not specified Tube

Engineering Selection Recommendations

The MAX4527ESA+ is the direct substitute for the MAX4527ESA based on identical electrical and mechanical specifications. Selection of the MAX4527ESA+ is justified by the following factors:

  • Product Status: The MAX4527ESA+ maintains Active status, ensuring continued availability and manufacturing support, whereas the MAX4527ESA is Obsolete.
  • Regulatory Compliance: The MAX4527ESA+ is ROHS3 Compliant, meeting current environmental and regulatory requirements. The original MAX4527ESA is RoHS non-compliant.
  • Functional Equivalence: All critical electrical parameters, including switch configuration, resistance characteristics, voltage ratings, and operating temperature range, are identical.
  • Package Compatibility: Both parts use the 8-SOIC surface mount package with identical dimensions, ensuring direct PCB compatibility without layout modifications.

For new designs and production continuity, the MAX4527ESA+ is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the MAX4527ESA+ be used as a direct replacement for the MAX4527ESA?

A: Yes. The MAX4527ESA+ is electrically and mechanically equivalent to the MAX4527ESA. All functional parameters, including switch configuration, on-state resistance, voltage ratings, and package dimensions, are identical. The parts are pin-compatible and require no circuit modifications.

Q: What is the primary difference between the MAX4527ESA and MAX4527ESA+?

A: The MAX4527ESA+ is the active production variant with ROHS3 compliance and Tube packaging. The MAX4527ESA is classified as Obsolete and is RoHS non-compliant. Electrically, both parts are identical.

Q: Are there any package or pinout differences?

A: No. Both the MAX4527ESA and MAX4527ESA+ use the 8-SOIC surface mount package with identical pin configuration and dimensions (0.154" width, 3.90mm). Direct PCB substitution is possible without layout changes.

Q: What supply voltage configurations does the MAX4527ESA+ support?

A: The MAX4527ESA+ supports both single supply operation (4.5V ~ 36V) and dual supply operation (±4.5V ~ 18V), identical to the MAX4527ESA.

Q: Is the MAX4527ESA+ suitable for applications requiring RoHS compliance?

A: Yes. The MAX4527ESA+ is ROHS3 Compliant, meeting current environmental regulations. The original MAX4527ESA is RoHS non-compliant and should not be used in applications with RoHS requirements.

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