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MAX4534ESD Equivalent & Substitute Parts
Part Overview
The MAX4534ESD is a single-circuit SP4T (Single-Pole, 4-Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a 4:1 multiplexer/demultiplexer with 400Ohm on-state resistance, designed for signal routing applications in analog systems. The device is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing production support and design continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Switch Circuit Configuration | SP4T (Single-Pole, 4-Throw) |
| Multiplexer/Demultiplexer Circuit | 4:1 |
| Number of Circuits | 1 |
| On-State Resistance (Max) | 400Ohm |
| Channel-to-Channel Matching (ΔRon) | 2Ohm |
| Voltage - Supply, Single (V+) | 9V ~ 36V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) (Max) | 275ns, 200ns |
| Charge Injection | 1pC |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 6.5pF |
| Current - Leakage (IS(off)) (Max) | 500pA |
| Crosstalk | -53dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution eligibility for the MAX4534ESD is determined by strict equivalence across the following critical parameters:
- Switch circuit topology: SP4T configuration
- Multiplexer function: 4:1 circuit
- On-state resistance: 400Ohm maximum
- Channel matching: 2Ohm ΔRon
- Supply voltage ranges: 9V ~ 36V (single) and ±4.5V ~ 20V (dual)
- Switching performance: 275ns Ton, 200ns Toff
- Charge injection: 1pC
- Channel capacitance: 5pF (CS(off)), 6.5pF (CD(off))
- Leakage current: 500pA maximum
- Crosstalk performance: -53dB @ 1MHz
- Package: 14-SOIC surface mount
- Operating temperature range: -40°C ~ 85°C
The MAX4534ESD+ meets all electrical and mechanical parameters required for direct substitution.
Parameter Comparison
| Parameter | MAX4534ESD (Main Part) | MAX4534ESD+ (Substitute) |
|---|---|---|
| Switch Circuit | SP4T | SP4T |
| Multiplexer/Demultiplexer Circuit | 4:1 | 4:1 |
| Number of Circuits | 1 | 1 |
| On-State Resistance (Max) | 400Ohm | 400Ohm |
| Channel-to-Channel Matching (ΔRon) | 2Ohm | 2Ohm |
| Voltage - Supply, Single (V+) | 9V ~ 36V | 9V ~ 36V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 20V | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) (Max) | 275ns, 200ns | 275ns, 200ns |
| Charge Injection | 1pC | 1pC |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 6.5pF | 5pF, 6.5pF |
| Current - Leakage (IS(off)) (Max) | 500pA | 500pA |
| Crosstalk | -53dB @ 1MHz | -53dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (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
The MAX4534ESD+ is the direct equivalent substitute for the MAX4534ESD. Both parts are electrically and mechanically identical across all specified parameters. The primary distinction is product lifecycle status: the MAX4534ESD is obsolete, while the MAX4534ESD+ is active and currently in production.
For new designs and ongoing production requiring this switch topology, the MAX4534ESD+ is the appropriate selection. The MAX4534ESD+ additionally provides ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the original MAX4534ESD does not carry RoHS certification.
Both parts maintain identical electrical performance characteristics, including on-state resistance, switching speed, charge injection, and crosstalk specifications. Package configuration and mounting type are identical, ensuring direct PCB compatibility without layout modifications.
Frequently Asked Questions (FAQ)
Q: Can MAX4534ESD+ be used as a direct replacement for MAX4534ESD in existing designs?
A: Yes. The MAX4534ESD+ is electrically and mechanically equivalent to the MAX4534ESD. All electrical parameters, including on-state resistance, switching times, supply voltage ranges, and package dimensions, are identical. No circuit modifications or PCB redesign is required.
Q: What is the difference between MAX4534ESD and MAX4534ESD+?
A: The primary differences are product status and compliance certification. The MAX4534ESD is obsolete, while the MAX4534ESD+ is active. The MAX4534ESD+ carries ROHS3 compliance; the MAX4534ESD does not. Electrical and mechanical specifications are identical.
Q: Are there packaging differences between these parts?
A: Both parts use the 14-SOIC surface mount package with identical dimensions (0.154", 3.90mm width). The MAX4534ESD+ is supplied in Tube packaging, while the original MAX4534ESD packaging is not specified. This does not affect electrical performance or PCB compatibility.
Q: What supply voltage configurations does this switch support?
A: The MAX4534ESD and MAX4534ESD+ support both single and dual supply configurations. Single supply operation: 9V ~ 36V (V+). Dual supply operation: ±4.5V ~ 20V (V±).
Q: What is the on-state resistance specification?
A: Maximum on-state resistance is 400Ohm with channel-to-channel matching of 2Ohm (ΔRon). This specification is identical for both the MAX4534ESD and MAX4534ESD+.
Q: What switching speed does this IC provide?
A: Maximum switch-on time (Ton) is 275ns and maximum switch-off time (Toff) is 200ns. These specifications apply to both the MAX4534ESD and MAX4534ESD+.
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