DG301AC/D Equivalent & Substitute Parts

Part Overview

The DG301AC/D is a single-circuit SPDT (Single Pole Double Throw) IC switch manufactured by Analog Devices Inc./Maxim Integrated, configured as a 2:1 multiplexer/demultiplexer with 50Ohm on-state resistance. This component is supplied as a die package for direct integration into hybrid circuits and custom applications.

The DG301AC/D is classified as obsolete. Identifying equivalent and substitute parts is necessary to support ongoing production requirements, maintenance of legacy systems, and transition to active product lines that maintain electrical and functional compatibility.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPDT
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	1
On-State Resistance (Max)	50Ohm
Voltage - Supply, Dual (V±)	±5V ~ 18V
Switch Time - Ton (Max)	300ns
Switch Time - Toff (Max)	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	Surface Mount
Base Product Number	DG301

Substitute Part Grouping Explanation

Substitution of the DG301AC/D is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Equivalence Parameters:

Switch circuit configuration (SPDT)
Multiplexer/demultiplexer circuit topology (2:1)
Number of circuits (1)
On-state resistance (50Ohm maximum)
Dual supply voltage range (±5V ~ 18V)
Switch timing specifications (Ton 300ns max, Toff 250ns max)
Charge injection (12pC)
Channel capacitance values (14pF each)
Leakage current (5nA maximum)
Crosstalk performance (-74dB @ 500kHz)
Operating temperature range (0°C ~ 70°C)
Base product number (DG301)

The DG301AC/D die package form factor is specific to hybrid circuit integration. Substitutes must maintain identical electrical performance while accommodating different packaging formats (such as 16-SOIC) when the application permits package transition.

Parameter Comparison

Parameter	DG301AC/D (Die)	DG301ACWE+ (16-SOIC)
Switch Circuit	SPDT	SPDT
Multiplexer/Demultiplexer Circuit	2:1	2:1
Number of Circuits	1	1
On-State Resistance (Max)	50Ohm	50Ohm
Voltage - Supply, Dual (V±)	±5V ~ 18V	±5V ~ 18V
Switch Time - Ton (Max)	300ns	300ns
Switch Time - Toff (Max)	250ns	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
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	Die	16-SOIC (0.295", 7.50mm Width)
Product Status	Obsolete	Active
RoHS Status	Not specified	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	Not specified	1 (Unlimited)

Engineering Selection Recommendations

DG301ACWE+ (16-SOIC Package) is the primary substitute for the DG301AC/D die package.

Basis for Selection:

Electrical Equivalence: All critical electrical parameters are identical across both parts, including switch circuit configuration, on-state resistance, supply voltage range, switching times, charge injection, capacitance, leakage current, and crosstalk performance.
Product Status: The DG301ACWE+ maintains active product status with Analog Devices Inc./Maxim Integrated, ensuring continued availability and support. The DG301AC/D is obsolete.
Compliance and Certifications: The DG301ACWE+ is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating, indicating robust handling and storage characteristics suitable for modern manufacturing environments.
Package Transition: The DG301ACWE+ is supplied in 16-SOIC package format rather than die form. This substitution is valid only when the application design permits package transition from die to surface-mount IC. Hybrid circuit applications requiring die form may require alternative sourcing strategies or custom packaging solutions.
Inventory Availability: The DG301ACWE+ is available in higher inventory quantities (1161 Pcs) compared to the obsolete DG301AC/D (962 Pcs), supporting sustained production requirements.

Frequently Asked Questions (FAQ)

Q: Can the DG301ACWE+ directly replace the DG301AC/D in all applications?

A: Electrical substitution is complete. However, package form factor differs: DG301AC/D is supplied as a die, while DG301ACWE+ is a 16-SOIC surface-mount IC. Direct replacement is possible only in applications where the design accommodates 16-SOIC package integration. Hybrid circuits or applications requiring die form require alternative solutions.

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

A: Substitutes must maintain identical SPDT switch circuit configuration, 2:1 multiplexer topology, 50Ohm on-state resistance, ±5V ~ 18V dual supply voltage range, 300ns/250ns switching times, 12pC charge injection, 14pF channel capacitance, 5nA leakage current, and -74dB crosstalk performance at 500kHz.

Q: Why is the DG301AC/D classified as obsolete?

A: The DG301AC/D die package has been discontinued by the manufacturer. The DG301ACWE+ 16-SOIC package variant remains active and is the recommended path forward for new designs and ongoing production.

Q: Are there compliance differences between the two parts?

A: The DG301ACWE+ is certified ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity. The DG301AC/D compliance status is not specified in available documentation. For applications requiring specific regulatory compliance, the DG301ACWE+ provides documented certification.

Q: What is the inventory status for each part?

A: DG301AC/D: 962 Pcs new original in stock (obsolete status). DG301ACWE+: 1161 Pcs new original in stock (active status). Higher availability of the active substitute supports production continuity.

Q: Can the DG301ACWE+ be used in new designs?

A: Yes. The DG301ACWE+ is the recommended component for new designs requiring SPDT 2:1 multiplexer functionality with 50Ohm on-state resistance and the specified electrical performance parameters. Active product status ensures long-term availability and manufacturer support.

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