DG390ACJ+ Equivalent & Substitute Parts

Part Overview

The DG390ACJ+ is a dual-circuit SPDT (Single Pole Double Throw) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This 16-pin DIP package device provides two independent 2:1 multiplexer/demultiplexer circuits with 50Ohm on-state resistance, designed for precision signal routing applications in analog systems.

The DG390ACJ+ is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance of systems utilizing this interface component.

Substiute Parts

DG390ACJ+

Analog Devices Inc./Maxim IntegratedIn Stock: 1128DG390ACJ+ Datasheet

Current PartRFQ

DG301ACJ+

Analog Devices Inc./Maxim IntegratedIn Stock: 1273DG301ACJ+ Datasheet

Parametric EquivalentRFQ

DG303ACJ+

Analog Devices Inc./Maxim IntegratedIn Stock: 1697DG303ACJ+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DG390ACJ+ is determined by the following critical parameters:

Primary Substitution Criteria:

• Switch Circuit Type: SPDT
• Multiplexer/Demultiplexer Configuration: 2:1
• On-State Resistance (Max): 50Ohm
• Voltage Supply (Dual): ±5V ~ 18V
• Switch Time (Ton, Toff) Max: 300ns, 250ns
• Charge Injection: 12pC
• Channel Capacitance (CS(off), CD(off)): 14pF, 14pF
• Current - Leakage (IS(off)) Max: 5nA
• Crosstalk: -74dB @ 500kHz
• Operating Temperature: 0°C ~ 70°C (TA)
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

Secondary Consideration:

• Number of Circuits: The DG390ACJ+ contains 2 circuits. Substitutes may vary in circuit count while maintaining all other electrical parameters.

The DG303ACJ+ qualifies as a parametric equivalent with identical electrical specifications and active product status, differing only in package pin count (14-DIP vs. 16-DIP) due to reduced circuit count (2 circuits in both devices, but different pin configuration).

The DG301ACJ+ qualifies as a parametric equivalent with identical electrical specifications and active product status, but contains only 1 circuit and uses a 14-DIP package.

Parameter Comparison

Engineering Selection Recommendations

DG303ACJ+ Selection: The DG303ACJ+ is the primary substitute for the DG390ACJ+. Both devices contain 2 SPDT circuits with identical electrical performance specifications. The DG303ACJ+ is currently in active production status, ensuring supply chain availability. The device maintains ROHS3 compliance and MSL Level 1 rating. The primary design consideration is the package transition from 16-DIP to 14-DIP, which requires PCB layout modification but does not affect electrical functionality.

DG301ACJ+ Selection: The DG301ACJ+ is an alternative substitute when single-circuit functionality is acceptable. This device contains 1 SPDT circuit with identical electrical performance to the DG390ACJ+ per circuit. The DG301ACJ+ is currently in active production status. The device maintains ROHS3 compliance and MSL Level 1 rating. Selection of this part requires design modification to accommodate reduced circuit count and 14-DIP package configuration.

Both substitute parts maintain compliance certifications and electrical parameter equivalence with the obsolete DG390ACJ+.

Frequently Asked Questions (FAQ)

Q: Can the DG303ACJ+ directly replace the DG390ACJ+ without design changes?

A: The DG303ACJ+ provides electrical equivalence but requires PCB layout modification due to package change from 16-DIP to 14-DIP. Pin assignments differ between the two packages. Schematic functionality remains unchanged.

Q: What is the primary difference between DG303ACJ+ and DG301ACJ+?

A: The DG303ACJ+ contains 2 independent SPDT circuits, matching the DG390ACJ+ circuit count. The DG301ACJ+ contains 1 SPDT circuit. Both devices provide identical electrical performance per circuit. Selection depends on application circuit requirements.

Q: Are the substitute parts compatible with the original DG390ACJ+ supply voltage range?

A: Yes. Both DG303ACJ+ and DG301ACJ+ support the same dual supply voltage range of ±5V ~ 18V as the DG390ACJ+.

Q: Do the substitute parts maintain the same switching speed?

A: Yes. Both substitute parts maintain identical switch time specifications: Ton (Max) 300ns and Toff (Max) 250ns.

Q: What compliance certifications apply to the substitute parts?

A: Both DG303ACJ+ and DG301ACJ+ are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the DG390ACJ+ compliance profile.

Q: Why is the DG390ACJ+ classified as obsolete?

A: The DG390ACJ+ has been discontinued by the manufacturer. The DG303ACJ+ and DG301ACJ+ represent the active product line alternatives from Analog Devices Inc./Maxim Integrated for equivalent functionality.

Q: Can both substitute parts be used interchangeably in the same design?

A: No. Circuit count differs between the two substitutes. DG303ACJ+ (2 circuits) is the direct functional replacement for DG390ACJ+ (2 circuits). DG301ACJ+ (1 circuit) requires design modification if dual-circuit functionality is required.