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DG405CJ+ Equivalent & Substitute Parts
Part Overview
The DG405CJ+ is a 2-circuit IC switch with DPST-NO configuration and 45Ohm on-state resistance, manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a 2:1 multiplexer/demultiplexer for analog signal switching applications. The DG405CJ+ is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Switch Circuit Type | DPST - NO |
| Multiplexer/Demultiplexer Configuration | 2:1 |
| Number of Circuits | 2 |
| On-State Resistance (Max) | 45Ohm |
| Voltage - Supply, Single (V+) | 10V ~ 30V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 20V |
| Switch Time (Ton, Toff) (Max) | 150ns, 100ns |
| Package / Case | 16-DIP (0.300", 7.62mm) |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
Substitute Part Grouping Explanation
Substitution of the DG405CJ+ is determined by strict equivalence across the following critical parameters:
- Switch circuit topology (DPST - NO configuration)
- Multiplexer/demultiplexer ratio (2:1)
- On-state resistance specification (45Ohm maximum)
- Physical package format (16-DIP through-hole)
- Supply voltage compatibility (single or dual supply operation)
- Switching speed characteristics (Ton, Toff specifications)
The DG405DJ-E3, manufactured by Vishay Siliconix, meets these core substitution criteria. Both parts share identical switch circuit topology, multiplexer configuration, on-state resistance, and package specifications. The DG405DJ-E3 maintains functional compatibility while offering extended operating temperature range and active product status.
Parameter Comparison
| Parameter | DG405CJ+ (Main Part) | DG405DJ-E3 (Substitute) |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Vishay Siliconix |
| Product Status | Obsolete | Active |
| Switch Circuit | DPST - NO | DPST - NO |
| Multiplexer/Demultiplexer Circuit | 2:1 | 2:1 |
| Number of Circuits | 2 | 2 |
| On-State Resistance (Max) | 45Ohm | 45Ohm |
| Voltage - Supply, Single (V+) | 10V ~ 30V | 13V ~ 36V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 20V | ±7V ~ 22V |
| Switch Time (Ton, Toff) (Max) | 150ns, 100ns | 150ns, 100ns |
| Channel Capacitance (CS(off), CD(off)) | 12pF, 12pF | 12pF, 12pF |
| Current - Leakage (IS(off)) (Max) | 500pA | 500pA |
| Crosstalk | -90dB @ 1MHz | -90dB @ 1MHz |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) |
| Package / Case | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The DG405DJ-E3 is a direct functional substitute for the obsolete DG405CJ+. Both components maintain identical electrical specifications for switch circuit topology, on-state resistance, switching speed, and signal integrity parameters. The DG405DJ-E3 offers extended operating temperature range (-40°C to 85°C versus 0°C to 70°C) and active product status, ensuring long-term availability and supply chain continuity.
Both parts comply with ROHS3 and REACH requirements, supporting equivalent environmental and regulatory compliance profiles. The DG405DJ-E3 is available in active production with documented inventory, making it the appropriate selection for replacement applications and new designs requiring this switch circuit topology.
Frequently Asked Questions (FAQ)
Q: Can the DG405DJ-E3 directly replace the DG405CJ+ in existing designs?
A: Yes. The DG405DJ-E3 maintains identical switch circuit topology (DPST-NO), multiplexer configuration (2:1), on-state resistance (45Ohm), switching speed (150ns/100ns), and 16-DIP package format. Pin-for-pin compatibility is established across all functional parameters.
Q: What are the supply voltage differences between these parts?
A: The DG405CJ+ operates at 10V ~ 30V (single supply) or ±4.5V ~ 20V (dual supply). The DG405DJ-E3 operates at 13V ~ 36V (single supply) or ±7V ~ 22V (dual supply). The DG405DJ-E3 supports higher maximum supply voltages and requires higher minimum dual supply voltages. Verify your application's supply voltage falls within the DG405DJ-E3 operating range.
Q: Are there package or mounting differences?
A: Both parts use identical 16-DIP (0.300", 7.62mm) through-hole packaging. No PCB layout modifications are required for substitution.
Q: What is the significance of the extended operating temperature range in the DG405DJ-E3?
A: The DG405DJ-E3 supports -40°C to 85°C operation compared to the DG405CJ+ range of 0°C to 70°C. This extended range provides greater flexibility for applications requiring operation in wider temperature environments.
Q: Are compliance certifications equivalent between these parts?
A: Yes. Both the DG405CJ+ and DG405DJ-E3 are ROHS3 compliant and REACH unaffected, maintaining equivalent environmental and regulatory compliance profiles.
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