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MAX4066CSD Equivalent & Substitute Parts
Part Overview
The MAX4066CSD 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 device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements. The MAX4066CSD operates across a supply voltage range of 2V to 16V with a maximum on-state resistance of 45Ohm and supports switching frequencies up to 100MHz. Locating suitable substitutes ensures design continuity and component availability for applications requiring SPST-NO switching functionality in this package form factor.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Switch Circuit Type | SPST - NO |
| Number of Circuits | 4 |
| Multiplexer/Demultiplexer Circuit | 1:1 |
| On-State Resistance (Max) | 45Ohm |
| Channel-to-Channel Matching (ΔRon) | 500mOhm |
| Voltage - Supply, Single (V+) | 2V ~ 16V |
| Switch Time (Ton, Toff) (Max) | 100ns, 75ns |
| -3dB Bandwidth | 100MHz |
| Charge Injection | 1pC |
| Channel Capacitance (CS(off), CD(off)) | 9pF, 9pF |
| Current - Leakage (IS(off)) (Max) | 1nA |
| Crosstalk | -86dB @ 1MHz |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS non-compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the MAX4066CSD is determined by strict adherence to the following electrical and mechanical criteria:
Primary Substitution Criteria:
- Switch circuit type must be SPST - NO
- Number of circuits must be 4
- Multiplexer/Demultiplexer circuit configuration must be 1:1
- Package must be 14-SOIC form factor with 0.154" (3.90mm) width
- Surface mount mounting type required
- Operating temperature range must encompass or exceed 0°C ~ 70°C
Secondary Electrical Parameters for Compatibility Assessment:
- On-state resistance (45Ohm nominal for MAX4066CSD)
- Supply voltage range (minimum 2V, maximum 16V for full compatibility)
- Switching speed characteristics (Ton, Toff)
- Bandwidth performance (-3dB at 100MHz minimum)
- Leakage current specifications
- Crosstalk performance at 1MHz
Substitute parts are grouped based on whether they meet all primary criteria while maintaining electrical performance within acceptable tolerances for the intended application. Parts with superior specifications (lower on-state resistance, faster switching, wider supply range) are listed as direct functional equivalents. Parts with degraded specifications in non-critical parameters but meeting core switching requirements are listed as conditional substitutes.
Parameter Comparison
| Part Number | Manufacturer | On-State Resistance (Max) | Supply Voltage (V+) | Switch Time Ton/Toff (Max) | -3dB Bandwidth | Leakage Current (Max) | Crosstalk @ 1MHz | Operating Temp | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| MAX4066CSD | Analog Devices Inc./Maxim Integrated | 45Ohm | 2V ~ 16V | 100ns, 75ns | 100MHz | 1nA | -86dB | 0°C ~ 70°C | Obsolete | RoHS non-compliant |
| MAX4066CSD+ | Analog Devices Inc./Maxim Integrated | 45Ohm | 2V ~ 16V | 100ns, 75ns | 100MHz | 1nA | -86dB | 0°C ~ 70°C | Active | ROHS3 Compliant |
| 74HC4066D,653 | Nexperia USA Inc. | 95Ohm | 2V ~ 10V | 30ns, 20ns | 200MHz | 1µA | -60dB | -40°C ~ 125°C | Active | ROHS3 Compliant |
| 74HCT4066D,118 | Nexperia USA Inc. | 20Ohm (Typ) | 4.5V ~ 5.5V | 44ns, 30ns | 200MHz | 1µA | -60dB | -40°C ~ 125°C | Active | ROHS3 Compliant |
| 74LV4066D,118 | Nexperia USA Inc. | 35Ohm | 1V ~ 6V | 16ns, 28ns | 200MHz | 2µA | -60dB | -40°C ~ 125°C | Active | ROHS3 Compliant |
| 74LVC4066D,118 | Nexperia USA Inc. | 10Ohm | 1.65V ~ 5.5V | 3.9ns, 5ns | 500MHz | 5µA | -56dB | -40°C ~ 125°C | Active | ROHS3 Compliant |
| CD74HC4066M | Texas Instruments | 70Ohm | 2V ~ 10V | — | 200MHz | 100nA | -72dB | -55°C ~ 125°C | Last Time Buy | ROHS3 Compliant |
| CD74HC4066M96 | Texas Instruments | 70Ohm | 2V ~ 10V | — | 200MHz | 100nA | -72dB | -55°C ~ 125°C | Active | ROHS3 Compliant |
| CD74HC4066MT | Texas Instruments | 70Ohm | 2V ~ 10V | — | 200MHz | 100nA | -72dB | -55°C ~ 125°C | Last Time Buy | ROHS3 Compliant |
| CD74HCT4066M | Texas Instruments | 70Ohm | 4.5V ~ 5.5V | — | 200MHz | 100nA | -72dB | -55°C ~ 125°C | Last Time Buy | ROHS3 Compliant |
| CD74HCT4066M96 | Texas Instruments | 70Ohm | 4.5V ~ 5.5V | — | 200MHz | 100nA | -72dB | -55°C ~ 125°C | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Replacement (Identical Electrical Performance): MAX4066CSD+ is the active production equivalent of MAX4066CSD, offering identical electrical specifications with ROHS3 compliance. This part is the preferred choice for new designs and production continuity where the original MAX4066CSD is no longer available.
Nexperia 74-Series Alternatives: The Nexperia 74HC4066D,653, 74HCT4066D,118, 74LV4066D,118, and 74LVC4066D,118 are all active production parts with ROHS3 compliance. Selection among these depends on supply voltage requirements: 74HC4066D,653 operates at 2V ~ 10V; 74HCT4066D,118 requires 4.5V ~ 5.5V; 74LV4066D,118 operates at 1V ~ 6V; 74LVC4066D,118 operates at 1.65V ~ 5.5V. The 74LVC4066D,118 offers the lowest on-state resistance (10Ohm) and fastest switching performance (3.9ns, 5ns) with the widest bandwidth (500MHz), making it suitable for high-speed applications within its voltage range.
Texas Instruments CD74-Series Alternatives: CD74HC4066M96 and CD74HCT4066M96 are active production parts with ROHS3 compliance. CD74HC4066M96 operates at 2V ~ 10V, while CD74HCT4066M96 operates at 4.5V ~ 5.5V. Both offer 70Ohm on-state resistance and 200MHz bandwidth. CD74HC4066M and CD74HC4066MT are Last Time Buy status parts and should not be selected for new designs. CD74HCT4066M is also Last Time Buy status.
Compliance Considerations: All substitute parts listed carry ROHS3 compliance, addressing the RoHS non-compliance status of the original MAX4066CSD. This is a critical factor for applications subject to environmental regulations.
Frequently Asked Questions (FAQ)
Q: Can MAX4066CSD be directly replaced with MAX4066CSD+? A: Yes. MAX4066CSD+ is the active production equivalent with identical electrical specifications. The primary difference is product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant). All electrical parameters, package form factor, and pin configuration are identical.
Q: What is the key difference between Nexperia and Texas Instruments substitutes? A: Both manufacturers provide 4-circuit SPST-NO switches in 14-SOIC packages. Nexperia parts (74HC4066, 74HCT4066, 74LV4066, 74LVC4066 series) offer varying supply voltage ranges and on-state resistance values. Texas Instruments CD74-series parts (CD74HC4066, CD74HCT4066) provide consistent 70Ohm on-state resistance across their product lines. Selection depends on specific supply voltage and resistance requirements of the application.
Q: Which substitute offers the best performance for high-speed switching applications? A: The 74LVC4066D,118 from Nexperia provides the fastest switching performance with Ton/Toff of 3.9ns and 5ns respectively, and the highest bandwidth at 500MHz. However, this part operates within a 1.65V ~ 5.5V supply range, which may not be suitable for applications requiring the original MAX4066CSD's 2V ~ 16V range.
Q: Are all substitute parts available in the same packaging options? A: All substitute parts are available in 14-SOIC surface mount packages. However, packaging options (Tube, Cut Tape & Digi-Reel, Tape & Reel) vary by part number and manufacturer. Verify specific packaging availability with your supplier for procurement requirements.
Q: What should I consider when selecting between active and Last Time Buy parts? A: Last Time Buy parts (CD74HC4066M, CD74HC4066MT, CD74HCT4066M) have limited remaining inventory and are no longer in active production. For new designs and long-term production, select only Active status parts: MAX4066CSD+, 74HC4066D,653, 74HCT4066D,118, 74LV4066D,118, 74LVC4066D,118, CD74HC4066M96, or CD74HCT4066M96.
Q: Does supply voltage range affect substitution compatibility? A: Yes. The original MAX4066CSD operates at 2V ~ 16V. Substitutes with narrower voltage ranges (such as 74HCT4066D,118 at 4.5V ~ 5.5V) are only compatible with applications operating within their specified ranges. Verify that the substitute's supply voltage range encompasses your application's operating conditions.
Q: What is the significance of on-state resistance differences among substitutes? A: On-state resistance affects signal attenuation and power dissipation. The MAX4066CSD has 45Ohm on-state resistance. Substitutes range from 10Ohm (74LVC4066D,118) to 95Ohm (74HC4066D,653). Lower resistance reduces signal loss and heat generation; higher resistance may introduce signal degradation in sensitive applications. Select based on your circuit's impedance requirements and signal integrity specifications.
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