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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, designed for low-impedance signal switching applications. This surface-mount component operates from a single 2V to 5.5V supply and delivers 10Ohm on-state resistance with fast switching characteristics (12ns turn-on, 10ns turn-off). The part is currently in active production status with 4001 units in stock.
Substitute parts are necessary when the MAX4614CSD+ becomes unavailable, when alternative supply chain options are required, or when design specifications allow for relaxed electrical parameters such as higher on-state resistance, extended operating temperature ranges, or different supply voltage requirements.
Substiute Parts
Key Parameters
| Parameter | MAX4614CSD+ | Unit |
|---|---|---|
| Switch Circuit Type | SPST - NO | — |
| Number of Circuits | 4 | — |
| On-State Resistance (Max) | 10 | Ohm |
| Channel-to-Channel Matching (ΔRon) | 200 | mOhm |
| Supply Voltage (Single) | 2 to 5.5 | V |
| Switch Time (Ton/Toff Max) | 12 / 10 | ns |
| -3dB Bandwidth | 70 | MHz |
| Charge Injection | 6.5 | pC |
| Channel Capacitance (CS(off) / CD(off)) | 5 / 5 | pF |
| Leakage Current (IS(off) Max) | 1 | nA |
| Crosstalk | -96 | dB @ 100kHz |
| Operating Temperature | 0 to 70 | °C |
| Package | 14-SOIC | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution eligibility is determined by the following criteria:
Primary Compatibility Parameters:
- Switch circuit type: SPST - NO (mandatory match)
- Number of circuits: 4 (mandatory match)
- Package type: 14-SOIC form factor (mandatory match)
- Mounting type: Surface Mount (mandatory match)
Electrical Tolerance Parameters:
- On-state resistance: Substitute parts may exceed 10Ohm if application design permits higher impedance
- Supply voltage range: Substitute parts must encompass or exceed the 2V to 5.5V range, or operate within a subset if the application uses only that subset
- Operating temperature: Substitute parts with extended ranges (-40°C to 125°C) are acceptable for designs operating within 0°C to 70°C
- Switch timing, bandwidth, and charge injection: Substitute parts with equal or superior performance are acceptable
Compliance Parameters:
- RoHS3 compliance required
- MSL rating 1 (Unlimited) required
Substitute parts are grouped by on-state resistance performance tier, as this parameter most directly affects circuit behavior in signal switching applications.
Parameter Comparison
| Part Number | Manufacturer | Ron (Max) Ohm | ΔRon mOhm | V+ Range V | Ton/Toff ns | BW MHz | IS(off) Max | Temp °C | Status |
|---|---|---|---|---|---|---|---|---|---|
| MAX4614CSD+ | Analog Devices | 10 | 200 | 2–5.5 | 12/10 | 70 | 1nA | 0–70 | Active |
| 74LVC4066D,118 | Nexperia | 10 | — | 1.65–5.5 | 3.9/5 | 500 | 5µA | -40–125 | Active |
| 74LV4066D,118 | Nexperia | 35 | — | 1–6 | 16/28 | 200 | 2µA | -40–125 | Active |
| 74HCT4066D,118 | Nexperia | 20 | 3 | 4.5–5.5 | 44/30 | 200 | 1µA | -40–125 | Active |
| 74HCT4066D-Q100,11 | Nexperia | 20 | 3 | 4.5–5.5 | 44/30 | 200 | 1µA | -40–125 | Active |
| 74HC4066D,653 | Nexperia | 95 | 3 | 2–10 | 30/20 | 200 | 1µA | -40–125 | Active |
| HEF4066BT,653 | Nexperia | 155 | 5 | 3–15 | — | 90 | 200nA | -40–125 | Active |
| SN74AHC4066DR | Texas Instruments | 75 | 2 | 2–5.5 | 12/12 | 50 | 100nA | -40–85 | Last Time Buy |
| SN74AHC4066D | Texas Instruments | 75 | 2 | 2–5.5 | 12/12 | 50 | 100nA | -40–85 | Last Time Buy |
| D24066QM96G4Q1 | Texas Instruments | 95 | 1 | 4.5–5.5 | 24/35 | 200 | — | -40–125 | Last Time Buy |
Engineering Selection Recommendations
Direct Replacement (Identical On-State Resistance):
The 74LVC4066D,118 (Nexperia) provides the closest electrical match with 10Ohm on-state resistance. This part offers superior switching speed (3.9ns/5ns) and extended bandwidth (500MHz) compared to the MAX4614CSD+. The supply voltage range is wider (1.65V to 5.5V), and the operating temperature range extends to -40°C to 125°C. This part is in active production status.
Higher Impedance Alternatives (Acceptable for Less Demanding Applications):
Parts with 20Ohm to 35Ohm on-state resistance (74HCT4066D,118, 74HCT4066D-Q100,11, 74LV4066D,118) are suitable when circuit design tolerates increased impedance. The 74HCT4066D-Q100,11 carries AEC-Q100 automotive qualification and is recommended for automotive applications. All three are in active production.
Extended Supply Voltage Range:
The 74HC4066D,653 (95Ohm) and HEF4066BT,653 (155Ohm) support wider supply voltage ranges (2V to 10V and 3V to 15V respectively) for applications requiring operation beyond the standard 5V rail. Both are in active production.
Avoid for New Designs:
The SN74AHC4066DR, SN74AHC4066D, and D24066QM96G4Q1 are marked as Last Time Buy and should not be selected for new designs requiring long-term availability.
Frequently Asked Questions (FAQ)
Q: Can I use a substitute part with higher on-state resistance than the MAX4614CSD+?
A: Yes, if your circuit design accommodates the increased impedance. Higher resistance increases signal attenuation and may affect bandwidth. Verify that the substitute part's on-state resistance does not degrade signal integrity in your specific application. The 74LV4066D,118 (35Ohm) and 74HC4066D,653 (95Ohm) are common alternatives with acceptable performance in many applications.
Q: What is the difference between the 74HCT4066D,118 and 74HCT4066D-Q100,11?
A: Both parts are electrically identical with 20Ohm on-state resistance and identical switching characteristics. The 74HCT4066D-Q100,11 carries AEC-Q100 automotive qualification and is packaged in Tape & Reel format. Select the Q100 variant for automotive applications; select the standard variant for general industrial use.
Q: Is the 74LVC4066D,118 a direct replacement for the MAX4614CSD+?
A: The 74LVC4066D,118 matches the MAX4614CSD+ in on-state resistance (10Ohm) and package (14-SOIC). It offers superior performance with faster switching (3.9ns vs. 12ns turn-on) and higher bandwidth (500MHz vs. 70MHz). The supply voltage range is wider (1.65V to 5.5V vs. 2V to 5.5V). This part is fully compatible and in active production.
Q: Can I substitute a part with a narrower supply voltage range?
A: Only if your application operates entirely within that narrower range. For example, the 74HCT4066D,118 operates from 4.5V to 5.5V. If your design uses a 5V supply exclusively, this part is acceptable. If your design requires operation at 3.3V or lower, this part is not suitable.
Q: What does "Last Time Buy" status mean?
A: Last Time Buy indicates the manufacturer will discontinue the part after a specified date. Parts with this status should not be selected for new designs. The SN74AHC4066DR, SN74AHC4066D, and D24066QM96G4Q1 are in this category.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All parts listed in this reference are RoHS3 compliant and carry MSL rating 1 (Unlimited), meeting the compliance requirements of the MAX4614CSD+.
Q: Which substitute offers the best performance for high-frequency applications?
A: The 74LVC4066D,118 provides the highest bandwidth (500MHz) and fastest switching times (3.9ns turn-on, 5ns turn-off), making it the optimal choice for high-frequency signal switching applications.
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