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MAX368EPN+ Equivalent & Substitute Parts
Part Overview
The MAX368EPN+ is an 8:1 analog multiplexer/demultiplexer integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This single-circuit switch device features 1.8kOhm on-state resistance and operates across a dual supply voltage range of ±4.5V to ±18V. The component is housed in an 18-pin DIP package suitable for through-hole mounting applications. As an obsolete product status component, identifying equivalent alternatives is necessary for system redesign, board refreshes, or when original inventory becomes unavailable.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Multiplexer/Demultiplexer Configuration | 8:1 |
| Number of Circuits | 1 |
| 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, 25pF |
| Current - Leakage (IS(off)) (Max) | 5nA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 18-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MAX368EPN+ is determined by strict equivalence across the following critical parameters:
- Multiplexer Configuration: 8:1 topology with single circuit
- On-State Resistance: Maximum 1.8kOhm
- Channel-to-Channel Matching: 180Ohm tolerance
- Supply Voltage Range: Dual supply ±4.5V ~ 18V
- Switching Performance: Ton/Toff specifications of 1.5µs and 1µs maximum
- Charge Injection: 55pC maximum
- Package Format: 18-DIP through-hole configuration
- Compliance: ROHS3 compliance and MSL Level 1
Only components meeting all specified parameters across these categories qualify as direct substitutes. The MAX368EPN+ represents the complete specification set for this product category.
Parameter Comparison
| Parameter | MAX368EPN+ |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Multiplexer/Demultiplexer Circuit | 8:1 |
| Number of Circuits | 1 |
| 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, 25pF |
| Current - Leakage (IS(off)) (Max) | 5nA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 18-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Engineering Selection Recommendations
The MAX368EPN+ is classified as an obsolete product. Component selection for replacement applications must prioritize ROHS3 compliance and MSL Level 1 rating to ensure compatibility with modern manufacturing and storage requirements. The 18-DIP through-hole package format remains a critical constraint for board-level integration in legacy system designs. Dual supply voltage operation across ±4.5V to ±18V provides flexibility for mixed-signal applications requiring symmetric power rails.
Frequently Asked Questions (FAQ)
Q: What defines a valid substitute for the MAX368EPN+? A: A valid substitute must match all specified electrical parameters including 8:1 multiplexer configuration, 1.8kOhm on-state resistance, ±4.5V to ±18V dual supply operation, and switching time specifications. The component must also be housed in an 18-DIP through-hole package with ROHS3 compliance and MSL Level 1 rating.
Q: Can surface-mount alternatives replace the MAX368EPN+ in through-hole designs? A: No. The MAX368EPN+ is specified for through-hole mounting in an 18-DIP package. Surface-mount alternatives would require board redesign and are not considered direct substitutes for this application.
Q: Are there any package variants of the MAX368EPN+? A: The provided specification data identifies only the 18-PDIP package variant. No alternative package formats are listed in the substitute parts database.
Q: What is the significance of the MSL Level 1 rating? A: MSL Level 1 indicates unlimited moisture sensitivity, meaning the component does not require special moisture control during storage or handling. This simplifies inventory management and reduces storage costs compared to higher MSL-rated components.
Q: How does the 180Ohm channel-to-channel matching specification affect substitution? A: Channel-to-channel matching tolerance directly impacts signal integrity in multiplexed applications. Substitute components must maintain this 180Ohm maximum variation to ensure consistent switching characteristics across all eight channels.
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