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DG407CWI Equivalent & Substitute Parts
Part Overview
The DG407CWI is a dual 8:1 multiplexer/demultiplexer IC manufactured by Analog Devices Inc./Maxim Integrated, housed in a 28-SOIC surface mount package. This interface component features 100Ohm on-state resistance and operates across a wide supply voltage range of 5V to 30V (single supply) or ±4.5V to ±20V (dual supply). The DG407CWI is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Multiplexer/Demultiplexer Circuit | 8:1 |
| Number of Circuits | 2 |
| On-State Resistance (Max) | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 1.5Ohm |
| Voltage - Supply, Single (V+) | 5V ~ 30V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ ±20V |
| Switch Time (Ton, Toff) (Max) | 200ns, 150ns |
| Charge Injection | 2pC |
| Channel Capacitance (CS(off), CD(off)) | 8pF, 65pF |
| Current - Leakage (IS(off)) (Max) | 500pA |
| Crosstalk | -92dB @ 100kHz |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution eligibility for the DG407CWI is determined by strict equivalence across the following critical parameters:
- Multiplexer configuration: 8:1 dual circuit topology
- On-state resistance: 100Ohm maximum
- Channel-to-channel matching: 1.5Ohm maximum
- Supply voltage ranges: 5V to 30V (single) and ±4.5V to ±20V (dual)
- Switching performance: 200ns (Ton) and 150ns (Toff) maximum
- Charge injection: 2pC
- Channel capacitance specifications: 8pF and 65pF
- Leakage current: 500pA maximum
- Crosstalk performance: -92dB @ 100kHz
- Package: 28-SOIC surface mount
- Operating temperature range: 0°C to 70°C
The DG407CWI+ meets all electrical and mechanical parameters required for direct substitution.
Parameter Comparison
| Parameter | DG407CWI | DG407CWI+ |
|---|---|---|
| Multiplexer/Demultiplexer Circuit | 8:1 | 8:1 |
| Number of Circuits | 2 | 2 |
| On-State Resistance (Max) | 100Ohm | 100Ohm |
| Channel-to-Channel Matching (ΔRon) | 1.5Ohm | 1.5Ohm |
| Voltage - Supply, Single (V+) | 5V ~ 30V | 5V ~ 30V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ ±20V | ±4.5V ~ ±20V |
| Switch Time (Ton, Toff) (Max) | 200ns, 150ns | 200ns, 150ns |
| Charge Injection | 2pC | 2pC |
| Channel Capacitance (CS(off), CD(off)) | 8pF, 65pF | 8pF, 65pF |
| Current - Leakage (IS(off)) (Max) | 500pA | 500pA |
| Crosstalk | -92dB @ 100kHz | -92dB @ 100kHz |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The DG407CWI+ is the direct functional equivalent of the DG407CWI. Both parts share identical electrical specifications and mechanical packaging. The primary distinction is product lifecycle status: the DG407CWI is obsolete, while the DG407CWI+ maintains active production status.
For new designs and production continuity, the DG407CWI+ is the appropriate selection. This part carries ROHS3 compliance certification, whereas the original DG407CWI is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification.
Frequently Asked Questions (FAQ)
Q: Can the DG407CWI+ directly replace the DG407CWI in existing designs?
A: Yes. The DG407CWI+ provides identical electrical performance and mechanical compatibility. No circuit modifications are required for substitution.
Q: What is the significance of the "+" designation in the DG407CWI+?
A: The "+" suffix indicates an updated version of the base DG407 product line. In this case, it denotes ROHS3 compliance and active production status.
Q: Are there packaging differences between these parts?
A: Both parts use 28-SOIC surface mount packaging with identical dimensions (0.295", 7.50mm width). The DG407CWI+ is supplied in tube packaging, while the original DG407CWI packaging specification is not detailed.
Q: What supply voltage configurations does the DG407CWI+ support?
A: The part operates with single supply voltage from 5V to 30V, or dual supply voltage from ±4.5V to ±20V.
Q: Is the DG407CWI+ suitable for applications requiring RoHS compliance?
A: Yes. The DG407CWI+ carries ROHS3 certification, making it suitable for RoHS-compliant applications and procurement requirements.
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