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DG300ACWE Equivalent & Substitute Parts
Part Overview
The DG300ACWE is a 2-circuit IC switch with SPST-NO (Single Pole Single Throw - Normally Open) configuration, designed for 50Ohm impedance matching applications in 16-SOIC surface mount packaging. This component functions as a precision analog switch suitable for signal routing and multiplexing in communication and instrumentation systems.
The DG300ACWE is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for legacy systems and new designs requiring compatible switching functionality.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Switch Circuit Type | SPST - NO |
| Number of Circuits | 2 |
| Multiplexer/Demultiplexer Configuration | 1:1 |
| On-State Resistance (Max) | 50Ohm |
| Switch Time - Turn On (Ton) | 300ns |
| Switch Time - Turn Off (Toff) | 250ns |
| Charge Injection | 12pC |
| Channel Capacitance - Off State (CS(off), CD(off)) | 14pF, 14pF |
| Current - Leakage (IS(off)) Max | 5nA |
| Crosstalk | -74dB @ 500kHz |
| Voltage Supply - Dual (V±) | ±5V ~ 18V |
| Operating Temperature Range | 0°C ~ 70°C (TA) |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution of the DG300ACWE is determined by strict equivalence across the following critical parameters:
- Switch Configuration: SPST - NO topology with 1:1 multiplexer/demultiplexer circuit and 2 circuits
- Impedance Matching: 50Ohm on-state resistance
- Switching Performance: 300ns turn-on time and 250ns turn-off time
- Signal Integrity: 12pC charge injection, 14pF channel capacitance, 5nA maximum leakage current, and -74dB crosstalk at 500kHz
- Supply Voltage: ±5V ~ 18V dual supply operation
- Package Compatibility: 16-SOIC surface mount package with identical physical dimensions
- Temperature Range: 0°C ~ 70°C operating temperature
Parts meeting all these parameters are classified as parametric equivalents and direct substitutes.
Parameter Comparison
| Parameter | DG300ACWE | DG300ACWE+ |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Switch Circuit | SPST - NO | SPST - NO |
| Number of Circuits | 2 | 2 |
| Multiplexer Configuration | 1:1 | 1:1 |
| On-State Resistance (Max) | 50Ohm | 50Ohm |
| Switch Time (Ton, Toff) | 300ns, 250ns | 300ns, 250ns |
| Charge Injection | 12pC | 12pC |
| Channel Capacitance (CS(off), CD(off)) | 14pF, 14pF | 14pF, 14pF |
| Current - Leakage (IS(off)) Max | 5nA | 5nA |
| Crosstalk | -74dB @ 500kHz | -74dB @ 500kHz |
| Voltage Supply (V±) | ±5V ~ 18V | ±5V ~ 18V |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Packaging | Not specified | Tube |
Engineering Selection Recommendations
The DG300ACWE+ is a direct parametric equivalent to the DG300ACWE. Both parts share identical electrical and mechanical specifications across all critical switching parameters, supply voltage requirements, and package dimensions.
The primary distinction between these parts is product status and regulatory compliance. The DG300ACWE is obsolete, while the DG300ACWE+ maintains active product status. The DG300ACWE+ is ROHS3 compliant, whereas the DG300ACWE is RoHS non-compliant. For new designs and applications requiring current regulatory compliance, the DG300ACWE+ is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, either part provides equivalent functionality.
Frequently Asked Questions (FAQ)
Q: Can DG300ACWE+ be used as a direct replacement for DG300ACWE?
A: Yes. The DG300ACWE+ is a parametric equivalent with identical electrical performance, switching characteristics, and 16-SOIC package dimensions. No circuit modifications are required for substitution.
Q: What is the difference between DG300ACWE and DG300ACWE+?
A: The parts are electrically and mechanically identical. The primary differences are product status (obsolete vs. active) and RoHS compliance (non-compliant vs. ROHS3 compliant). The DG300ACWE+ is supplied in tube packaging.
Q: Are there any compatibility concerns when substituting DG300ACWE with DG300ACWE+?
A: No compatibility concerns exist. Both parts operate within the same voltage supply range (±5V ~ 18V), temperature range (0°C ~ 70°C), and package footprint. PCB layout and design remain unchanged.
Q: Which part should be selected for new designs?
A: The DG300ACWE+ should be selected for new designs. It maintains active product status and meets current ROHS3 regulatory requirements, ensuring long-term availability and compliance with environmental standards.
Q: Is the 16-SOIC package footprint identical between both parts?
A: Yes. Both parts use the 16-SOIC package with 0.295" width and 7.50mm dimensions. PCB footprints are interchangeable without modification.
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