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MAX350CAP Equivalent & Substitute Parts
Part Overview
The MAX350CAP is a dual-channel SP4T (Single Pole, 4-Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This interface component provides 4:1 multiplexing/demultiplexing functionality with 100Ohm on-state resistance in a 20-SSOP surface mount package. The MAX350CAP is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Switch Circuit Configuration | SP4T (Single Pole, 4-Throw) |
| Number of Circuits | 2 |
| Multiplexer/Demultiplexer Circuit | 4:1 |
| On-State Resistance (Max) | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 16Ohm (Max) |
| Supply Voltage - Single (V+) | 2.7V ~ 16V |
| Supply Voltage - Dual (V±) | ±2.7V ~ 8V |
| Switch Time (Ton/Toff) | 275ns / 150ns (Max) |
| Charge Injection | 1pC |
| Channel Capacitance (CS(off)/CD(off)) | 2pF / 2pF |
| Leakage Current (IS(off)) (Max) | 100pA |
| Crosstalk | -90dB @ 100kHz |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution eligibility for the MAX350CAP is determined by strict equivalence across the following critical parameters:
- Switch Architecture: SP4T configuration with 2 independent circuits
- Multiplexing Ratio: 4:1 channel selection
- Electrical Performance: 100Ohm on-state resistance with 16Ohm maximum channel matching
- Supply Voltage Compatibility: Single supply (2.7V ~ 16V) and dual supply (±2.7V ~ 8V) operation
- Switching Characteristics: Maximum switch times of 275ns (Ton) and 150ns (Toff)
- Signal Integrity Parameters: Charge injection (1pC), channel capacitance (2pF), leakage current (100pA), and crosstalk (-90dB @ 100kHz)
- Physical Form Factor: 20-SSOP surface mount package with identical 5.30mm width
The MAX350CAP+ meets all substitution criteria as a direct equivalent with identical electrical specifications and package configuration.
Parameter Comparison
| Parameter | MAX350CAP | MAX350CAP+ |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Switch Circuit | SP4T | SP4T |
| Number of Circuits | 2 | 2 |
| Multiplexer/Demultiplexer Circuit | 4:1 | 4:1 |
| On-State Resistance (Max) | 100Ohm | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 16Ohm (Max) | 16Ohm (Max) |
| Supply Voltage - Single (V+) | 2.7V ~ 16V | 2.7V ~ 16V |
| Supply Voltage - Dual (V±) | ±2.7V ~ 8V | ±2.7V ~ 8V |
| Switch Time (Ton, Toff) (Max) | 275ns, 150ns | 275ns, 150ns |
| Charge Injection | 1pC | 1pC |
| Channel Capacitance (CS(off), CD(off)) | 2pF, 2pF | 2pF, 2pF |
| Current - Leakage (IS(off)) (Max) | 100pA | 100pA |
| Crosstalk | -90dB @ 100kHz | -90dB @ 100kHz |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The MAX350CAP+ is the direct substitute for the obsolete MAX350CAP. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product lifecycle status and regulatory compliance.
The MAX350CAP is classified as obsolete with RoHS non-compliant certification. The MAX350CAP+ is an active product with ROHS3 compliance, making it the appropriate selection for new designs and ongoing production support. Both parts share identical MSL rating (1 - Unlimited) and REACH status (REACH Unaffected).
For applications currently using MAX350CAP, direct substitution with MAX350CAP+ requires no circuit modifications or design changes. Pin configuration, electrical performance, and package footprint remain unchanged.
Frequently Asked Questions (FAQ)
Q: Can MAX350CAP+ be used as a direct replacement for MAX350CAP in existing designs?
A: Yes. The MAX350CAP+ provides identical electrical performance and physical form factor. No circuit modifications are required for substitution.
Q: What is the primary reason to transition from MAX350CAP to MAX350CAP+?
A: The MAX350CAP is obsolete. The MAX350CAP+ is an active product with ROHS3 compliance, ensuring long-term availability and regulatory alignment for new and ongoing production.
Q: Are the supply voltage ranges identical between both parts?
A: Yes. Both MAX350CAP and MAX350CAP+ support single supply operation (2.7V ~ 16V) and dual supply operation (±2.7V ~ 8V).
Q: Do both parts have the same package footprint?
A: Yes. Both parts use the 20-SSOP surface mount package with 5.30mm width. PCB layout and assembly processes remain unchanged.
Q: What is the significance of the MSL rating for these parts?
A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
Q: Are there any differences in switching performance between MAX350CAP and MAX350CAP+?
A: No. Switch times (Ton/Toff), charge injection, channel capacitance, leakage current, and crosstalk specifications are identical.
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