DG409DJZ Equivalent & Substitute Parts

Part Overview

The DG409DJZ is a 2-circuit SP4T (single-pole, 4-throw) analog switch IC manufactured by Renesas Electronics Corporation in 16-DIP packaging. This component features 100Ohm on-state resistance and operates across a wide supply voltage range (5V to 34V single supply, or ±5V to ±20V dual supply). The DG409DJZ is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SP4T (Single-Pole, 4-Throw)
Number of Circuits	2
Multiplexer/Demultiplexer Circuit	4:1
On-State Resistance (Max)	100Ohm
Channel-to-Channel Matching (ΔRon)	15Ohm (Max)
Voltage - Supply, Single (V+)	5V ~ 34V
Voltage - Supply, Dual (V±)	±5V ~ 20V
Switch Time (Ton, Toff) (Max)	150ns, 150ns
Charge Injection	20pC
Channel Capacitance (CS(off), CD(off))	3pF, 14pF
Current - Leakage (IS(off)) (Max)	500pA
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the DG409DJZ is determined by the following critical parameters:

Primary Substitution Criteria:

Switch circuit configuration: SP4T
Number of circuits: 2
Multiplexer/Demultiplexer circuit: 4:1
On-state resistance: 100Ohm nominal
Package type: 16-DIP (0.300", 7.62mm)
Mounting type: Through Hole

Secondary Compatibility Factors:

Supply voltage range compatibility (single and/or dual supply)
Operating temperature range (-40°C ~ 85°C minimum)
Leakage current specification (500pA maximum)
RoHS3 compliance and MSL rating

Parts are grouped into two categories:

Group 1 - Direct Functional Equivalents (100Ohm, SP4T, 2-Circuit): ADG409BNZ, DG409DJ+, DG409CJ+, and DG409DJ-E3 maintain the core 100Ohm on-state resistance specification with SP4T 4:1 configuration in 16-DIP packaging. These parts differ in supply voltage ranges, channel matching specifications, and active product status.

Group 2 - Alternative Performance Profile (30Ohm, SP4T, 2-Circuit): ADG609BNZ provides lower on-state resistance (30Ohm) with improved switching speed and reduced charge injection, suitable for applications where lower impedance is beneficial. This part operates at reduced supply voltages (3.3V ~ 5V single supply).

Non-Equivalent Part: MAX339CPE+ is excluded from direct substitution due to significantly higher on-state resistance (400Ohm), which falls outside the functional equivalence range for 100Ohm-specified applications.

Parameter Comparison

Parameter	DG409DJZ	ADG409BNZ	ADG609BNZ	DG409CJ+	DG409DJ+	DG409DJ-E3
Manufacturer	Renesas Electronics	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim	Vishay Siliconix
Product Status	Obsolete	Active	Active	Active	Active	Active
Switch Circuit	SP4T	SP4T	SP4T	SP4T	SP4T	SP4T
Number of Circuits	2	2	2	2	2	2
On-State Resistance (Max)	100Ohm	100Ohm	30Ohm	100Ohm	100Ohm	100Ohm
Channel-to-Channel Matching (ΔRon)	15Ohm (Max)	15Ohm (Max)	5Ohm (Max)	1.5Ohm	1.5Ohm	15Ohm (Max)
Voltage - Supply, Single (V+)	5V ~ 34V	12V	3.3V ~ 5V	5V ~ 30V	5V ~ 30V	13V ~ 44V
Voltage - Supply, Dual (V±)	±5V ~ 20V	±15V	±5V	±5V ~ 20V	±5V ~ 20V	±5V ~ 20V
Switch Time (Ton, Toff) (Max)	150ns, 150ns	—	75ns, 45ns	150ns, 150ns	150ns, 150ns	150ns, 150ns
Charge Injection	20pC	20pC	6pC	2pC	2pC	20pC
Channel Capacitance (CS(off), CD(off))	3pF, 14pF	11pF, 20pF	9pF, 20pF	3pF, 14pF	3pF, 14pF	3pF, 14pF
Current - Leakage (IS(off)) (Max)	500pA	500pA	500pA	500pA	500pA	500pA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (100Ohm Specification Required):

DG409DJ+ and DG409CJ+ are active products from Analog Devices Inc./Maxim Integrated with identical 100Ohm on-state resistance and improved channel-to-channel matching (1.5Ohm versus 15Ohm). Both maintain ROHS3 compliance and MSL 1 rating. DG409DJ+ supports the full -40°C ~ 85°C operating temperature range, while DG409CJ+ is limited to 0°C ~ 70°C. Select DG409DJ+ for applications requiring extended low-temperature operation.

ADG409BNZ (Analog Devices Inc., active) maintains 100Ohm on-state resistance with 15Ohm matching specification. Supply voltage range is restricted to 12V single supply or ±15V dual supply. This part is suitable only for applications within these voltage constraints.

DG409DJ-E3 (Vishay Siliconix, active) provides 100Ohm on-state resistance with extended single-supply voltage range (13V ~ 44V). This part is appropriate for high-voltage applications exceeding the DG409DJZ specification.

For Lower Impedance Applications:

ADG609BNZ (Analog Devices Inc., active) offers 30Ohm on-state resistance with superior switching speed (75ns/45ns) and reduced charge injection (6pC). This part operates at reduced supply voltages (3.3V ~ 5V single supply, ±5V dual supply) and is suitable for low-voltage, low-impedance switching applications.

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and 16-DIP through-hole packaging compatibility with the original DG409DJZ.

Frequently Asked Questions (FAQ)

Q: Can ADG409BNZ directly replace DG409DJZ in all applications?

A: ADG409BNZ is functionally equivalent in terms of switch configuration (SP4T, 2-circuit, 100Ohm) and package (16-DIP). However, supply voltage range differs: ADG409BNZ operates at 12V single supply or ±15V dual supply, while DG409DJZ supports 5V ~ 34V single supply or ±5V ~ 20V dual supply. Verify your application's supply voltage requirements before substitution.

Q: What is the difference between DG409DJ+ and DG409CJ+?

A: Both parts are 100Ohm SP4T 2-circuit switches in 16-DIP packaging with identical electrical specifications. The primary difference is operating temperature range: DG409DJ+ supports -40°C ~ 85°C, while DG409CJ+ is limited to 0°C ~ 70°C. Select DG409DJ+ for applications requiring extended low-temperature operation.

Q: Is ADG609BNZ a suitable substitute for DG409DJZ?

A: ADG609BNZ is not a direct substitute due to significantly lower on-state resistance (30Ohm versus 100Ohm). This part is suitable only for applications where lower impedance is beneficial and the circuit design accommodates the different resistance specification. Supply voltage range is also restricted to 3.3V ~ 5V single supply.

Q: Why is MAX339CPE+ not recommended as a substitute?

A: MAX339CPE+ has 400Ohm on-state resistance, which is four times higher than the DG409DJZ specification (100Ohm). This part is not functionally equivalent for applications requiring 100Ohm switching impedance.

Q: Are all substitute parts available in the same 16-DIP package?

A: Yes. All recommended substitute parts (ADG409BNZ, ADG609BNZ, DG409CJ+, DG409DJ+, and DG409DJ-E3) are available in 16-DIP (0.300", 7.62mm) through-hole packaging, ensuring mechanical compatibility with DG409DJZ PCB layouts.

Q: What compliance certifications apply to substitute parts?

A: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the DG409DJZ specifications. All parts carry EAR99 ECCN classification and REACH Unaffected status.

Q: Which substitute offers the best performance improvement over DG409DJZ?

A: DG409DJ+ and DG409CJ+ provide superior channel-to-channel matching (1.5Ohm versus 15Ohm) and significantly reduced charge injection (2pC versus 20pC), resulting in improved signal integrity. Both maintain 100Ohm on-state resistance and are active products with full ROHS3 compliance.

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