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MAX4534CSD Equivalent & Substitute Parts
Part Overview
The MAX4534CSD 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 400Ω on-state resistance and is housed in a 14-SOIC surface mount package. The MAX4534CSD is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production 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) | 400Ω |
| Channel-to-Channel Matching (ΔRon) | 2Ω |
| Supply Voltage - Single (V+) | 9V ~ 36V |
| Supply Voltage - Dual (V±) | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) Max | 275ns, 200ns |
| Charge Injection | 1pC |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 6.5pF |
| Leakage Current (IS(off)) Max | 500pA |
| Crosstalk | -53dB @ 1MHz |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution of the MAX4534CSD is determined by strict equivalence across the following critical parameters:
- Switch topology: SP4T configuration with 4:1 multiplexing capability
- Electrical performance: 400Ω on-state resistance, 2Ω channel matching, switching times (275ns/200ns), and signal integrity metrics (charge injection, crosstalk, leakage current)
- Supply voltage compatibility: Single supply (9V–36V) and dual supply (±4.5V–±20V) operation
- Package and form factor: 14-SOIC surface mount package with identical physical dimensions
- Operating temperature range: 0°C to 70°C
The MAX4534CSD+ meets all these criteria and is therefore a direct functional equivalent. The primary distinction is product status and compliance certification.
Parameter Comparison
| Parameter | MAX4534CSD (Main Part) | MAX4534CSD+ (Substitute) |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Switch Circuit | SP4T | SP4T |
| Multiplexer/Demultiplexer Circuit | 4:1 | 4:1 |
| Number of Circuits | 1 | 1 |
| On-State Resistance (Max) | 400Ω | 400Ω |
| Channel-to-Channel Matching (ΔRon) | 2Ω | 2Ω |
| Supply Voltage - Single (V+) | 9V ~ 36V | 9V ~ 36V |
| Supply Voltage - 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 |
| Leakage Current (IS(off)) Max | 500pA | 500pA |
| Crosstalk | -53dB @ 1MHz | -53dB @ 1MHz |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°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 |
| Packaging | Not specified | Tube |
Engineering Selection Recommendations
The MAX4534CSD+ is the direct substitute for the obsolete MAX4534CSD. Both parts share identical electrical specifications, switching characteristics, and package geometry. Selection between these parts is determined by application requirements and regulatory compliance:
MAX4534CSD+ is the preferred choice for new designs and production continuity. This part is in active production status, ensuring long-term availability and supply chain stability. The MAX4534CSD+ is ROHS3 compliant, meeting current environmental and regulatory standards. Tube packaging provides standard handling and storage compatibility with automated assembly processes.
MAX4534CSD remains suitable only for legacy system maintenance where existing inventory is available and RoHS non-compliance does not conflict with application requirements or regional regulations.
Frequently Asked Questions (FAQ)
Q: Are MAX4534CSD and MAX4534CSD+ pin-compatible? A: Yes. Both parts use the 14-SOIC package with identical pin assignments, footprints, and electrical interface specifications.
Q: Can MAX4534CSD+ replace MAX4534CSD in existing designs without circuit modification? A: Yes. The MAX4534CSD+ is a direct functional equivalent with identical electrical performance across all specified parameters. No circuit changes are required.
Q: What is the difference between MAX4534CSD and MAX4534CSD+? A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), and packaging format. Electrical specifications and performance are identical.
Q: Why is the MAX4534CSD classified as obsolete? A: Obsolescence indicates the part is no longer in active production. The MAX4534CSD+ serves as the active production equivalent.
Q: Is the MAX4534CSD+ available in the same packaging as the original MAX4534CSD? A: The MAX4534CSD+ is supplied in Tube packaging, which is standard for surface mount components. Both parts use the same 14-SOIC physical package.
Q: What supply voltage options does the MAX4534CSD+ support? A: The MAX4534CSD+ operates with single supply (9V–36V) or dual supply (±4.5V–±20V) configurations, identical to the original MAX4534CSD.
Q: Are there any performance differences in switching speed between these parts? A: No. Both parts have identical switch times: 275ns maximum for turn-on (Ton) and 200ns maximum for turn-off (Toff).
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