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MAX369CPN Equivalent & Substitute Parts
Part Overview
The MAX369CPN is a dual 4:1 analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, designed for signal routing and multiplexing applications. This component features SP4T (Single Pole, 4-Throw) switching architecture with 1.8kOhm on-state resistance per circuit. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Switch Circuit Configuration | SP4T |
| Multiplexer/Demultiplexer Circuit | 4:1 |
| Number of Circuits | 2 |
| On-State Resistance (Max) | 1.8kOhm |
| Channel-to-Channel Matching (ΔRon) | 180Ohm |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 18V |
| Switch Time (Ton, Toff) (Max) | 1.5µs, 1µs |
| Charge Injection | 55pC |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 12pF |
| Current - Leakage (IS(off)) (Max) | 5nA |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
| Package / Case | 18-DIP (0.300", 7.62mm) |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MAX369CPN is determined by strict equivalence across the following critical parameters:
- Switch Architecture: SP4T configuration with 4:1 multiplexing capability
- Circuit Count: Dual circuit implementation (2 independent switches)
- Electrical Performance: On-state resistance of 1.8kOhm maximum, channel matching of 180Ohm, switching times of 1.5µs (Ton) and 1µs (Toff)
- Supply Voltage: Dual supply operation within ±4.5V ~ 18V range
- Signal Integrity Parameters: Charge injection of 55pC, channel capacitance specifications (5pF off-state source, 12pF off-state drain)
- Leakage Current: Maximum 5nA off-state leakage
- Physical Form Factor: 18-DIP through-hole package with 0.300" (7.62mm) pitch
- Thermal Range: 0°C to 70°C operating temperature
The MAX369CPN+ qualifies as a direct substitute based on identical electrical specifications and package configuration.
Parameter Comparison
| Parameter | MAX369CPN | MAX369CPN+ |
|---|---|---|
| Switch Circuit | SP4T | SP4T |
| Multiplexer/Demultiplexer Circuit | 4:1 | 4:1 |
| Number of Circuits | 2 | 2 |
| On-State Resistance (Max) | 1.8kOhm | 1.8kOhm |
| Channel-to-Channel Matching (ΔRon) | 180Ohm | 180Ohm |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 18V | ±4.5V ~ 18V |
| Switch Time (Ton, Toff) (Max) | 1.5µs, 1µs | 1.5µs, 1µs |
| Charge Injection | 55pC | 55pC |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 12pF | 5pF, 12pF |
| Current - Leakage (IS(off)) (Max) | 5nA | 5nA |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 18-DIP (0.300", 7.62mm) | 18-DIP (0.300", 7.62mm) |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The MAX369CPN+ serves as the direct functional equivalent to the MAX369CPN. Both parts maintain identical electrical specifications, switching characteristics, and physical packaging. The primary distinction lies in regulatory compliance: the MAX369CPN+ achieves ROHS3 compliance, whereas the original MAX369CPN does not meet RoHS requirements.
For new designs or systems requiring regulatory compliance with RoHS3 standards, the MAX369CPN+ is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, either part satisfies the electrical and mechanical requirements. Both components are classified as obsolete products, indicating limited future availability through standard distribution channels.
Frequently Asked Questions (FAQ)
Q: Can MAX369CPN+ replace MAX369CPN in existing designs?
A: Yes. The MAX369CPN+ is electrically and mechanically identical to the MAX369CPN. Both devices feature the same SP4T switching architecture, 1.8kOhm on-state resistance, dual supply voltage range (±4.5V ~ 18V), and 18-DIP through-hole package. Direct substitution is valid without circuit modification.
Q: What is the difference between MAX369CPN and MAX369CPN+?
A: The primary difference is RoHS compliance status. The MAX369CPN+ meets ROHS3 requirements, while the MAX369CPN does not. All electrical parameters, switching characteristics, and package specifications are identical.
Q: Are there any packaging differences between these parts?
A: The MAX369CPN is supplied in standard packaging, while the MAX369CPN+ is supplied in tube packaging. Both use the 18-DIP (0.300", 7.62mm) form factor with identical pin configurations and electrical interfaces.
Q: What supply voltage range does the MAX369CPN support?
A: The device operates with dual supply voltages ranging from ±4.5V to ±18V, providing flexibility for various analog signal routing applications.
Q: Is the MAX369CPN suitable for new product designs?
A: Both the MAX369CPN and MAX369CPN+ are classified as obsolete. For new designs, evaluation of current-generation analog switch alternatives from Analog Devices Inc./Maxim Integrated is recommended to ensure long-term component availability and support.
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