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MAX4614CSD Equivalent & Substitute Parts
Part Overview
The MAX4614CSD is a 4-circuit SPST-NO analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, housed in a 14-SOIC surface mount package. This component features a 10Ohm on-state resistance and operates across a 2V to 5.5V single supply voltage range. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts must maintain functional compatibility while meeting the electrical and mechanical requirements of the original specification.
Substiute Parts
Key Parameters
| Parameter | MAX4614CSD |
|---|---|
| Switch Circuit Type | SPST - NO |
| Number of Circuits | 4 |
| On-State Resistance (Max) | 10Ohm |
| Channel-to-Channel Matching (ΔRon) | 200mOhm |
| Voltage - Supply, Single (V+) | 2V ~ 5.5V |
| Switch Time (Ton, Toff) (Max) | 12ns, 10ns |
| -3dB Bandwidth | 70MHz |
| Charge Injection | 6.5pC |
| Channel Capacitance (CS(off), CD(off)) | 5pF, 5pF |
| Current - Leakage (IS(off)) (Max) | 1nA |
| Crosstalk | -96dB @ 100kHz |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| RoHS Status | RoHS non-compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict adherence to the following criteria:
Primary Compatibility Requirements:
- Switch circuit type: SPST - NO (mandatory match)
- Number of circuits: 4 (mandatory match)
- Package / Case: 14-SOIC form factor (mandatory match)
- Multiplexer/Demultiplexer circuit: 1:1 (mandatory match)
Electrical Parameter Tolerance Bands:
- On-state resistance must not exceed 10Ohm maximum specification
- Supply voltage range must encompass or exceed 2V ~ 5.5V
- Operating temperature range must support 0°C ~ 70°C minimum
- Switch timing and bandwidth must meet or exceed specified performance
Compliance Considerations:
- RoHS3 compliance preferred for new designs
- Moisture sensitivity level MSL 1 (Unlimited) maintained across all substitutes
- REACH and ECCN classifications consistent across all listed parts
Substitute parts are grouped into two categories: direct equivalents (identical electrical specifications) and functional alternatives (compatible within tolerance bands but with differing on-state resistance values).
Parameter Comparison
| Part Number | Manufacturer | On-State Resistance (Max) | Supply Voltage (V+) | Operating Temperature | Switch Time Ton/Toff (Max) | -3dB Bandwidth | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| MAX4614CSD | Analog Devices Inc./Maxim Integrated | 10Ohm | 2V ~ 5.5V | 0°C ~ 70°C | 12ns, 10ns | 70MHz | Obsolete | RoHS non-compliant |
| MAX4614CSD+ | Analog Devices Inc./Maxim Integrated | 10Ohm | 2V ~ 5.5V | 0°C ~ 70°C | 12ns, 10ns | 70MHz | Active | ROHS3 Compliant |
| 74LVC4066D,118 | Nexperia USA Inc. | 10Ohm | 1.65V ~ 5.5V | -40°C ~ 125°C | 3.9ns, 5ns | 500MHz | Active | ROHS3 Compliant |
| 74HCT4066D,118 | Nexperia USA Inc. | 20Ohm (Typ) | 4.5V ~ 5.5V | -40°C ~ 125°C | 44ns, 30ns | 200MHz | Active | ROHS3 Compliant |
| 74HCT4066D-Q100,11 | Nexperia USA Inc. | 20Ohm (Typ) | 4.5V ~ 5.5V | -40°C ~ 125°C | 44ns, 30ns | 200MHz | Active | ROHS3 Compliant |
| 74LV4066D,118 | Nexperia USA Inc. | 35Ohm | 1V ~ 6V | -40°C ~ 125°C | 16ns, 28ns | 200MHz | Active | ROHS3 Compliant |
| 74HC4066D,653 | Nexperia USA Inc. | 95Ohm | 2V ~ 10V | -40°C ~ 125°C | 30ns, 20ns | 200MHz | Active | ROHS3 Compliant |
| HEF4066BT,653 | Nexperia USA Inc. | 155Ohm | 3V ~ 15V | -40°C ~ 125°C | — | 90MHz | Active | ROHS3 Compliant |
| SN74AHC4066DR | Texas Instruments | 75Ohm | 2V ~ 5.5V | -40°C ~ 85°C | 12ns, 12ns | 50MHz | Last Time Buy | ROHS3 Compliant |
| SN74AHC4066D | Texas Instruments | 75Ohm | 2V ~ 5.5V | -40°C ~ 85°C | 12ns, 12ns | 50MHz | Last Time Buy | ROHS3 Compliant |
| D24066QM96G4Q1 | Texas Instruments | 95Ohm | 4.5V ~ 5.5V | -40°C ~ 125°C | 24ns, 35ns | 200MHz | Last Time Buy | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Equivalent (Recommended Primary Substitute):
MAX4614CSD+ is the direct functional equivalent with identical electrical specifications and package configuration. This part maintains the 10Ohm on-state resistance, 2V ~ 5.5V supply range, and 14-SOIC package footprint. The primary distinction is product status (Active vs. Obsolete) and RoHS3 compliance, making it the preferred choice for new production and design continuity.
Active Production Alternatives:
74LVC4066D,118 (Nexperia) provides superior performance characteristics with 10Ohm on-state resistance matching the original specification, extended operating temperature range (-40°C ~ 125°C), and significantly improved bandwidth (500MHz vs. 70MHz). This part is actively produced and RoHS3 compliant, suitable for applications requiring enhanced performance margins.
74HCT4066D,118 and 74HCT4066D-Q100,11 (Nexperia) offer 20Ohm on-state resistance with active production status and automotive qualification (AEC-Q100 for the -Q100 variant). These parts are suitable for applications where the higher on-state resistance is acceptable and extended temperature operation is required.
Legacy Status Considerations:
SN74AHC4066DR and SN74AHC4066D (Texas Instruments) are classified as Last Time Buy with 75Ohm on-state resistance. These parts maintain 2V ~ 5.5V supply compatibility but are not recommended for new designs due to end-of-life status.
D24066QM96G4Q1 (Texas Instruments) is also Last Time Buy status with automotive qualification but restricted supply voltage (4.5V ~ 5.5V), limiting applicability to the original 2V ~ 5.5V specification.
74HC4066D,653 and HEF4066BT,653 (Nexperia) feature higher on-state resistance (95Ohm and 155Ohm respectively) and are suitable only for applications where resistance tolerance is not critical.
Frequently Asked Questions (FAQ)
Q: Can MAX4614CSD be directly replaced with MAX4614CSD+?
A: Yes. MAX4614CSD+ is the direct equivalent with identical electrical and mechanical specifications. The primary differences are product status (Active vs. Obsolete) and RoHS3 compliance. Pin configuration, package footprint, and electrical performance are identical, requiring no circuit modifications.
Q: What is the primary limitation when substituting with 74HCT4066D,118?
A: The 74HCT4066D,118 features 20Ohm on-state resistance compared to the original 10Ohm specification. This doubles the on-state resistance and may impact signal integrity in low-impedance applications. Supply voltage is also restricted to 4.5V ~ 5.5V, excluding operation below 4.5V. Verify circuit tolerance for these parameters before selection.
Q: Is 74LVC4066D,118 suitable as a drop-in replacement?
A: 74LVC4066D,118 maintains the 10Ohm on-state resistance specification and 14-SOIC package, making it mechanically and electrically compatible. However, the minimum supply voltage is 1.65V (vs. 2V original), and leakage current is higher (5µA vs. 1nA). For applications operating at or above 2V with standard leakage tolerance, this part is suitable. Verify leakage specifications for precision analog applications.
Q: Why are SN74AHC4066DR and SN74AHC4066D marked as Last Time Buy?
A: Last Time Buy status indicates these parts are no longer in active production and available inventory is limited. While functionally compatible with 75Ohm on-state resistance and 2V ~ 5.5V supply range, they are not recommended for new designs. Prioritize active production alternatives such as 74LVC4066D,118 or MAX4614CSD+.
Q: What is the significance of the 14-SOIC package specification?
A: The 14-SOIC (0.154", 3.90mm Width) package is a standard surface mount form factor. All listed substitute parts maintain this package specification, ensuring PCB footprint compatibility without layout modifications. Verify supplier device package designation matches 14-SOIC or 14-SO to confirm mechanical compatibility.
Q: Can HEF4066BT,653 be used in place of MAX4614CSD?
A: HEF4066BT,653 is not recommended as a direct substitute. While it maintains the 4-circuit SPST-NO configuration and 14-SOIC package, the 155Ohm on-state resistance significantly exceeds the 10Ohm specification. This part is suitable only for applications where on-state resistance is not performance-critical. Additionally, the 3V ~ 15V supply range does not support the original 2V minimum specification.
Q: What compliance certifications should be verified for new production?
A: RoHS3 compliance is standard across all active production alternatives. For automotive applications, verify AEC-Q100 qualification (available on 74HCT4066D-Q100,11). REACH and ECCN classifications are consistent across all listed parts (REACH Unaffected, EAR99). Confirm specific compliance requirements with your procurement and quality assurance departments.
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