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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
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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