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DG304ACWE Equivalent & Substitute Parts
Part Overview
The DG304ACWE 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 high-speed analog switch suitable for signal routing and multiplexing in interface applications. The DG304ACWE is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Part Number | DG304ACWE |
| Category | Interface |
| Switch Circuit Type | SPST - NO |
| Number of Circuits | 2 |
| On-State Resistance (Max) | 50Ohm |
| Multiplexer/Demultiplexer Circuit | 1:1 |
| Supply Voltage (Dual) | ±5V ~ 18V |
| Switch Time (Ton/Toff Max) | 250ns / 150ns |
| Charge Injection | 12pC |
| Channel Capacitance (CS(off)/CD(off)) | 14pF / 14pF |
| Leakage Current (IS(off) Max) | 5nA |
| Crosstalk | -74dB @ 500kHz |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the DG304ACWE is determined by strict equivalence across the following critical parameters:
- Switch circuit configuration: SPST - NO
- Number of circuits: 2
- On-state resistance: 50Ohm maximum
- Multiplexer/demultiplexer ratio: 1:1
- Supply voltage range: ±5V ~ 18V
- Switch timing specifications: Ton 250ns max, Toff 150ns max
- Charge injection: 12pC
- Channel capacitance: 14pF (both CS(off) and CD(off))
- Leakage current: 5nA maximum
- Crosstalk performance: -74dB @ 500kHz
- Package type: 16-SOIC surface mount
- Operating temperature range: 0°C ~ 70°C
The DG304ACWE+ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all parameters listed above.
Parameter Comparison
| Parameter | DG304ACWE | DG304ACWE+ |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Switch Circuit | SPST - NO | SPST - NO |
| Number of Circuits | 2 | 2 |
| On-State Resistance (Max) | 50Ohm | 50Ohm |
| Multiplexer/Demultiplexer Circuit | 1:1 | 1:1 |
| Supply Voltage (Dual) | ±5V ~ 18V | ±5V ~ 18V |
| Switch Time Ton (Max) | 250ns | 250ns |
| Switch Time Toff (Max) | 150ns | 150ns |
| Charge Injection | 12pC | 12pC |
| Channel Capacitance CS(off) | 14pF | 14pF |
| Channel Capacitance CD(off) | 14pF | 14pF |
| Leakage Current IS(off) (Max) | 5nA | 5nA |
| Crosstalk | -74dB @ 500kHz | -74dB @ 500kHz |
| 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 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The DG304ACWE+ is the appropriate substitute for the obsolete DG304ACWE. Both components maintain identical electrical and mechanical specifications across all functional parameters. The primary distinction is product status and regulatory compliance: the DG304ACWE+ is classified as active and carries ROHS3 compliance certification, whereas the original DG304ACWE is obsolete and RoHS non-compliant. For new designs and ongoing system support, the DG304ACWE+ provides continuity of supply with enhanced regulatory alignment. Both components share identical moisture sensitivity classification (MSL 1) and REACH status, ensuring equivalent handling and environmental requirements.
Frequently Asked Questions (FAQ)
Q: Can the DG304ACWE+ be used as a direct replacement for the DG304ACWE in existing designs?
A: Yes. The DG304ACWE+ provides electrical and mechanical equivalence across all specified parameters, including switch circuit configuration, impedance, timing characteristics, and 16-SOIC packaging. No circuit modifications are required.
Q: What is the primary reason to transition from DG304ACWE to DG304ACWE+?
A: The DG304ACWE is classified as obsolete, creating supply chain risk. The DG304ACWE+ is an active product from the same manufacturer with identical specifications and improved regulatory compliance (ROHS3).
Q: Are there any differences in packaging between these parts?
A: Both components use 16-SOIC surface mount packaging with identical physical dimensions (0.295", 7.50mm width). The DG304ACWE+ is supplied in tube packaging, while the original DG304ACWE packaging specification was not provided.
Q: Do these components have different handling or storage requirements?
A: No. Both components share identical moisture sensitivity level (MSL 1 - Unlimited), indicating equivalent handling and storage conditions.
Q: Is the DG304ACWE+ suitable for applications requiring RoHS compliance?
A: Yes. The DG304ACWE+ carries ROHS3 compliance certification, making it suitable for applications with RoHS requirements. The original DG304ACWE is RoHS non-compliant.
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