DG412CJ Equivalent & Substitute Parts

Part Overview

The DG412CJ is a 4-circuit SPST-NO analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, housed in a 16-DIP package. This component functions as a precision electronic switch with 45Ohm on-state resistance, designed for signal routing and multiplexing applications in analog systems. The DG412CJ is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO (Single Pole Single Throw - Normally Open)
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	45Ohm
Channel-to-Channel Matching (ΔRon Max)	3Ohm
Voltage Supply - Single (V+)	10V ~ 30V
Voltage Supply - Dual (V±)	±4.5V ~ 20V
Switch Time (Ton/Toff Max)	175ns / 145ns
Charge Injection	5pC
Channel Capacitance (CS(off) / CD(off))	9pF / 9pF
Leakage Current (IS(off) Max)	250pA
Crosstalk	-85dB @ 1MHz
Operating Temperature Range	0°C ~ 70°C
Package Type	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution eligibility for the DG412CJ is determined by strict equivalence across the following critical parameters:

Switch circuit topology: SPST - NO configuration
Circuit count: 4 independent circuits
Multiplexer ratio: 1:1
On-state resistance: 45Ohm maximum
Channel matching tolerance: 3Ohm maximum
Supply voltage ranges: 10V ~ 30V (single) and ±4.5V ~ 20V (dual)
Switching performance: 175ns (Ton) and 145ns (Toff) maximum
Electrical isolation: -85dB crosstalk @ 1MHz
Package form factor: 16-DIP through-hole mounting
Operating temperature: 0°C ~ 70°C

The DG412CJ+ qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status and compliance certification.

Parameter Comparison

Parameter	DG412CJ (Main Part)	DG412CJ+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPST - NO	SPST - NO
Number of Circuits	4	4
Multiplexer Configuration	1:1	1:1
On-State Resistance (Max)	45Ohm	45Ohm
Channel-to-Channel Matching (ΔRon Max)	3Ohm	3Ohm
Voltage Supply - Single (V+)	10V ~ 30V	10V ~ 30V
Voltage Supply - Dual (V±)	±4.5V ~ 20V	±4.5V ~ 20V
Switch Time Ton (Max)	175ns	175ns
Switch Time Toff (Max)	145ns	145ns
Charge Injection	5pC	5pC
Channel Capacitance CS(off)	9pF	9pF
Channel Capacitance CD(off)	9pF	9pF
Leakage Current IS(off) (Max)	250pA	250pA
Crosstalk	-85dB @ 1MHz	-85dB @ 1MHz
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C
Package / Case	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging Type	Not specified	Tube

Engineering Selection Recommendations

The DG412CJ+ is the direct functional equivalent of the DG412CJ. Both parts share identical electrical characteristics and package specifications, ensuring pin-for-pin compatibility and equivalent circuit performance.

The DG412CJ+ is classified as active product status, whereas the DG412CJ is obsolete. For new designs and ongoing production, the DG412CJ+ is the appropriate selection due to continued manufacturer support and availability.

The DG412CJ+ carries ROHS3 compliance certification, meeting current environmental and regulatory requirements. The original DG412CJ is RoHS non-compliant. Systems requiring RoHS compliance must transition to the DG412CJ+.

Both parts are REACH unaffected and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, indicating no change in export control or tariff status.

Frequently Asked Questions (FAQ)

Q: Can the DG412CJ+ be used as a direct replacement for the DG412CJ in existing designs?

A: Yes. The DG412CJ+ is electrically and mechanically identical to the DG412CJ. All electrical parameters, switching characteristics, and package dimensions are equivalent. The 16-DIP through-hole footprint and pin configuration are identical, enabling direct substitution without circuit modification.

Q: What is the primary reason to transition from DG412CJ to DG412CJ+?

A: The DG412CJ is classified as obsolete, while the DG412CJ+ is active product. The DG412CJ+ ensures continued availability, manufacturer support, and compliance with current environmental standards (ROHS3). For new designs and production continuity, the DG412CJ+ is the recommended selection.

Q: Are there differences in packaging between the DG412CJ and DG412CJ+?

A: The DG412CJ+ is supplied in tube packaging, while the DG412CJ packaging type is not specified. Both use the same 16-DIP physical form factor. Packaging differences do not affect electrical performance or circuit compatibility.

Q: Do both parts meet the same regulatory and compliance standards?

A: Both parts are REACH unaffected and carry identical ECCN and HTSUS classifications. The DG412CJ+ is ROHS3 compliant, while the DG412CJ is RoHS non-compliant. Systems requiring RoHS compliance must use the DG412CJ+.

Q: What are the critical electrical parameters that define substitution eligibility?

A: Substitution is based on identical switch topology (SPST-NO), circuit count (4), on-state resistance (45Ohm), supply voltage ranges (10V ~ 30V single, ±4.5V ~ 20V dual), switching times (175ns/145ns), and package configuration (16-DIP through-hole). All these parameters are identical between the DG412CJ and DG412CJ+.

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