DG409EUE Equivalent & Substitute Parts

Part Overview

The DG409EUE is a 2-circuit SP4T analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, designed for signal routing and multiplexing applications. This component features 4:1 multiplexer/demultiplexer functionality with 100Ohm on-state resistance per channel, housed in a 16-TSSOP surface mount package.

The DG409EUE is classified as obsolete. Locating direct equivalents and active substitutes is necessary to support ongoing production requirements, maintenance operations, and system redesigns where component availability is constrained.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SP4T (Single Pole, 4-Throw)
Multiplexer/Demultiplexer Circuit	4:1
Number of Circuits	2
On-State Resistance (Max)	100Ohm
Channel-to-Channel Matching (ΔRon)	1.5Ohm
Voltage - Supply, Single (V+)	5V ~ 30V
Voltage - Supply, Dual (V±)	±5V ~ 20V
Switch Time (Ton, Toff) (Max)	150ns, 150ns
Charge Injection	2pC
Channel Capacitance (CS(off), CD(off))	3pF, 14pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-92dB @ 100kHz
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the DG409EUE is determined by strict equivalence across the following critical parameters:

Switch circuit topology: SP4T configuration with 4:1 multiplexer/demultiplexer functionality
Number of independent circuits: 2 circuits per package
On-state resistance: 100Ohm maximum
Channel-to-channel matching: 1.5Ohm maximum deviation
Supply voltage ranges: 5V ~ 30V (single supply) and ±5V ~ 20V (dual supply)
Switch timing: 150ns maximum for both turn-on and turn-off
Electrical characteristics: Charge injection, channel capacitance, leakage current, and crosstalk performance
Physical form factor: 16-TSSOP surface mount package with identical dimensions
Operating temperature range: -40°C ~ 85°C

The DG409EUE+ 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	DG409EUE	DG409EUE+
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SP4T	SP4T
Multiplexer/Demultiplexer Circuit	4:1	4:1
Number of Circuits	2	2
On-State Resistance (Max)	100Ohm	100Ohm
Channel-to-Channel Matching (ΔRon)	1.5Ohm	1.5Ohm
Voltage - Supply, Single (V+)	5V ~ 30V	5V ~ 30V
Voltage - Supply, Dual (V±)	±5V ~ 20V	±5V ~ 20V
Switch Time (Ton, Toff) (Max)	150ns, 150ns	150ns, 150ns
Charge Injection	2pC	2pC
Channel Capacitance (CS(off), CD(off))	3pF, 14pF	3pF, 14pF
Current - Leakage (IS(off)) (Max)	500pA	500pA
Crosstalk	-92dB @ 100kHz	-92dB @ 100kHz
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)
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 DG409EUE+ is the direct functional equivalent of the DG409EUE, with identical electrical performance and package specifications. Selection between these parts is determined by regulatory and supply chain considerations:

DG409EUE+ is the preferred selection for new designs and ongoing production. This part carries Active product status, ensuring long-term availability and manufacturing support. The DG409EUE+ meets ROHS3 compliance requirements, satisfying environmental and regulatory mandates in most jurisdictions. Both parts maintain REACH Unaffected status.

DG409EUE remains available for legacy system support and maintenance applications where existing inventory is present. This part is classified as Obsolete, indicating limited future availability and no active manufacturing support from the supplier.

Both parts are electrically and mechanically interchangeable within the specified operating parameters. No circuit redesign or board layout modification is required when transitioning between these variants.

Frequently Asked Questions (FAQ)

Q: Are DG409EUE and DG409EUE+ pin-for-pin compatible?

A: Yes. Both parts use the 16-TSSOP package with identical pinout, dimensions (0.173" × 4.40mm width), and electrical interface. Direct PCB substitution is supported without layout changes.

Q: What is the difference between DG409EUE and DG409EUE+?

A: The parts are electrically identical across all specified parameters. The primary differences are product status (Obsolete vs. Active) and RoHS compliance (non-compliant vs. ROHS3 Compliant). The DG409EUE+ is the current production variant.

Q: Can I use DG409EUE+ in applications originally designed for DG409EUE?

A: Yes. The DG409EUE+ meets or exceeds all electrical and mechanical specifications of the DG409EUE. No application modifications are required.

Q: What packaging options are available?

A: DG409EUE is supplied in standard packaging. DG409EUE+ is supplied in Tube packaging. Both use the 16-TSSOP surface mount package format.

Q: Are there any supply chain considerations when selecting between these parts?

A: DG409EUE is classified as Obsolete with limited inventory availability. DG409EUE+ is Active production with ongoing supply. For new projects and long-term production, DG409EUE+ is the recommended selection.

Q: Do both parts meet environmental compliance standards?

A: DG409EUE+ is ROHS3 Compliant. DG409EUE is RoHS non-compliant. Both maintain REACH Unaffected status. Compliance requirements should be evaluated against your application and regional regulations.

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