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MAX4668ESE Equivalent & Substitute Parts
Part Overview
The MAX4668ESE is a 2-circuit IC switch with SPST-NO (Single Pole Single Throw - Normally Open) configuration manufactured by Analog Devices Inc./Maxim Integrated. This component operates as a 1:1 multiplexer/demultiplexer with 2.5Ohm on-state resistance and is housed in a 16-SOIC surface mount package. The MAX4668ESE is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Switch Circuit Type | SPST - NO |
| Number of Circuits | 2 |
| Multiplexer/Demultiplexer Configuration | 1:1 |
| On-State Resistance (Max) | 2.5Ohm |
| Channel-to-Channel Matching (ΔRon) | 50mOhm |
| Supply Voltage - Single (V+) | 4.5V ~ 36V |
| Supply Voltage - Dual (V±) | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) Max | 275ns, 175ns |
| Charge Injection | 450pC |
| Channel Capacitance (CS(off), CD(off)) | 65pF, 65pF |
| Current - Leakage (IS(off)) Max | 500pA |
| Crosstalk | -66dB @ 1MHz |
| Operating Temperature Range | -40°C ~ 85°C (TA) |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution of the MAX4668ESE is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute identified is the MAX4668ESE+, which maintains identical functional specifications including switch circuit topology, on-state resistance, supply voltage ranges, switching characteristics, and package configuration.
The substitution is valid based on the following criteria:
- Identical switch circuit type (SPST - NO)
- Identical number of circuits (2) and multiplexer configuration (1:1)
- Identical on-state resistance and channel matching specifications
- Identical supply voltage operating ranges (single and dual)
- Identical switching time, charge injection, and capacitance parameters
- Identical leakage current and crosstalk specifications
- Identical operating temperature range
- Identical package and mounting type (16-SOIC surface mount)
Parameter Comparison
| Parameter | MAX4668ESE (Main Part) | MAX4668ESE+ (Substitute) |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Obsolete | Active |
| Switch Circuit | SPST - NO | SPST - NO |
| Number of Circuits | 2 | 2 |
| Multiplexer Configuration | 1:1 | 1:1 |
| On-State Resistance (Max) | 2.5Ohm | 2.5Ohm |
| Channel-to-Channel Matching (ΔRon) | 50mOhm | 50mOhm |
| Supply Voltage - Single (V+) | 4.5V ~ 36V | 4.5V ~ 36V |
| Supply Voltage - Dual (V±) | ±4.5V ~ 20V | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) Max | 275ns, 175ns | 275ns, 175ns |
| Charge Injection | 450pC | 450pC |
| Channel Capacitance (CS(off), CD(off)) | 65pF, 65pF | 65pF, 65pF |
| Current - Leakage (IS(off)) Max | 500pA | 500pA |
| Crosstalk | -66dB @ 1MHz | -66dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| 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 MAX4668ESE+ is the direct equivalent for the obsolete MAX4668ESE. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical and mechanical specifications. The primary distinction is product status: the MAX4668ESE is obsolete while the MAX4668ESE+ is active and currently available.
For new designs and production applications, the MAX4668ESE+ is the appropriate selection. This part maintains full functional compatibility with the original MAX4668ESE while offering the advantage of active product status and ROHS3 compliance, compared to the RoHS non-compliant status of the original part. Both parts carry identical moisture sensitivity levels and REACH compliance status.
Frequently Asked Questions (FAQ)
Q: Can MAX4668ESE+ be used as a direct replacement for MAX4668ESE?
A: Yes. The MAX4668ESE+ is a direct equivalent with identical electrical and mechanical specifications. All functional parameters, including switch circuit type, on-state resistance, supply voltage ranges, switching characteristics, and package configuration are identical between the two parts.
Q: What is the difference between MAX4668ESE and MAX4668ESE+?
A: The primary differences are product status and RoHS compliance. The MAX4668ESE is obsolete and RoHS non-compliant, while the MAX4668ESE+ is active and ROHS3 compliant. All electrical and mechanical specifications are identical.
Q: Are there any package or pinout differences?
A: No. Both parts use the 16-SOIC surface mount package with identical dimensions (0.154" width, 3.90mm). Pinout and mounting configuration are identical.
Q: What supply voltage ranges are supported?
A: Both parts support single supply operation from 4.5V to 36V (V+) and dual supply operation from ±4.5V to ±20V (V±).
Q: What is the on-state resistance specification?
A: The on-state resistance maximum is 2.5Ohm with channel-to-channel matching of 50mOhm for both parts.
Q: Are moisture sensitivity considerations the same?
A: Yes. Both parts have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions.
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