DG441LDY-T1-E3 Equivalent & Substitute Parts

Part Overview

The DG441LDY-T1-E3 is a 4-circuit SPST-NC (Single Pole Single Throw - Normally Closed) analog switch IC manufactured by Vishay Siliconix in 16-SOIC surface mount package. This part operates with single supply voltage of 2.7V to 12V or dual supply of ±3V to ±6V, featuring 30Ohm on-state resistance and 280MHz bandwidth. The product is currently obsolete, necessitating identification of active equivalent and substitute parts that maintain functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	DG441LDY-T1-E3
Switch Circuit	SPST - NC
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	30Ohm
Channel-to-Channel Matching (ΔRon)	100mOhm
Voltage - Supply, Single (V+)	2.7V ~ 12V
Voltage - Supply, Dual (V±)	±3V ~ 6V
Switch Time (Ton, Toff) (Max)	60ns, 35ns
-3dB Bandwidth	280MHz
Charge Injection	5pC
Channel Capacitance (CS(off), CD(off))	5pF, 6pF
Current - Leakage (IS(off)) (Max)	1nA
Crosstalk	-95dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DG441LDY-T1-E3 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Switch circuit topology: SPST - NC (4 circuits, 1:1 multiplexer configuration)
Package type: 16-SOIC surface mount form factor
Operating temperature range: Must support -40°C to 85°C minimum
RoHS3 compliance and MSL rating

Electrical Performance Parameters:

On-state resistance and channel matching determine signal integrity and power dissipation
Supply voltage ranges (single and dual) define circuit compatibility
Switch timing (Ton, Toff), bandwidth, and charge injection affect signal fidelity
Leakage current and crosstalk specifications impact noise performance

Substitute parts are grouped into two categories based on electrical performance trade-offs:

Category A - Direct Electrical Upgrade (Lower Ron): DG441LEDY-T1-GE3 provides improved on-state resistance (26Ohm vs 30Ohm) with enhanced crosstalk performance (-114dB vs -95dB) while maintaining identical switching times and package form factor.

Category B - Higher Ron Alternatives: ADG441BRZ, ADG441BRZ-REEL, ALD4211SCL, DG441CY+, DG441CY+T, DG441DY+, DG441DY+T, DG441DYZ, and DG441DYZ-T feature higher on-state resistance (70Ohm to 135Ohm) with varying supply voltage ranges and thermal specifications. These are suitable for applications where Ron tolerance is less critical.

Parameter Comparison

Parameter	DG441LDY-T1-E3	DG441LEDY-T1-GE3	ADG441BRZ	ADG441BRZ-REEL	ALD4211SCL	DG441CY+	DG441CY+T	DG441DY+	DG441DY+T	DG441DYZ	DG441DYZ-T
Switch Circuit	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC
Number of Circuits	4	4	4	4	4	4	4	4	4	4	4
On-State Resistance (Max)	30Ohm	26Ohm	70Ohm	70Ohm	135Ohm	85Ohm	85Ohm	85Ohm	85Ohm	85Ohm	85Ohm
Channel-to-Channel Matching (ΔRon)	100mOhm	100mOhm	—	—	2.7Ohm	4Ohm (Max)	4Ohm (Max)	4Ohm (Max)	4Ohm (Max)	—	—
Voltage - Supply, Single (V+)	2.7V ~ 12V	3V ~ 16V	12V	12V	3V ~ 12V	10V ~ 30V	10V ~ 30V	10V ~ 30V	10V ~ 30V	5V ~ 34V	5V ~ 34V
Voltage - Supply, Dual (V±)	±3V ~ 6V	±3V ~ 8V	±15V	±15V	±1.5V ~ 6V	±4.5V ~ 20V	±4.5V ~ 20V	±4.5V ~ 20V	±4.5V ~ 20V	±5V ~ 22V	±5V ~ 22V
Switch Time (Ton, Toff) (Max)	60ns, 35ns	60ns, 35ns	110ns, 60ns	110ns, 60ns	130ns, 130ns	250ns, 120ns	250ns, 120ns	250ns, 120ns	250ns, 120ns	250ns, 120ns	250ns, 120ns
Charge Injection	5pC	6.6pC	1pC	1pC	0.2pC	5pC	5pC	5pC	5pC	-1pC	-1pC
Channel Capacitance (CS(off), CD(off))	5pF, 6pF	5pF, 6pF	4pF, 4pF	4pF, 4pF	3pF, 3pF	4pF, 4pF	4pF, 4pF	4pF, 4pF	4pF, 4pF	4pF, 4pF	4pF, 4pF
Current - Leakage (IS(off)) (Max)	1nA	1nA	500pA	500pA	100pA	500pA	500pA	500pA	500pA	500pA	500pA
Crosstalk	-95dB @ 1MHz	-114dB @ 1MHz	-100dB @ 1MHz	-100dB @ 1MHz	-90dB @ 100kHz	-100dB @ 1MHz	-100dB @ 1MHz	-100dB @ 1MHz	-100dB @ 1MHz	-100dB @ 1MHz	-100dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	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)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

Primary Substitute - DG441LEDY-T1-GE3 (Vishay Siliconix)

This part provides the closest electrical match to the DG441LDY-T1-E3 with improved performance. It maintains identical switching times (60ns/35ns), identical package form factor (16-SOIC), and identical operating temperature range (-40°C to 85°C). The lower on-state resistance (26Ohm vs 30Ohm) and superior crosstalk isolation (-114dB vs -95dB) represent performance enhancements. Supply voltage range is expanded (3V to 16V single supply vs 2.7V to 12V), providing greater circuit flexibility. Both parts are ROHS3 compliant with MSL 1 rating. Product status is active with 2084 units in stock.

Secondary Substitutes - DG441DY+T and DG441DYZ-T (Renesas Electronics Corporation)

These parts maintain the full -40°C to 85°C operating temperature range and 16-SOIC package compatibility. On-state resistance is higher at 85Ohm, requiring circuit re-evaluation for applications sensitive to Ron. Supply voltage ranges are expanded (5V to 34V single supply, ±5V to ±22V dual supply). Switching times are slower (250ns/120ns vs 60ns/35ns). DG441DYZ-T is available in Cut Tape & Digi-Reel packaging with 15,381 units in stock. Both are ROHS3 compliant. DG441DYZ-T has MSL 2 rating (1 Year) versus MSL 1 for the original part.

Alternative Substitutes - ADG441BRZ and ADG441BRZ-REEL (Analog Devices Inc.)

These parts are suitable for applications where supply voltage requirements align with fixed 12V single supply or ±15V dual supply operation. On-state resistance of 70Ohm and slower switching times (110ns/60ns) require circuit compatibility assessment. Charge injection is significantly lower (1pC vs 5pC), beneficial for precision analog applications. Both are ROHS3 compliant with MSL 1 rating and -40°C to 85°C operating range. ADG441BRZ-REEL offers Cut Tape & Digi-Reel packaging with 5,800 units in stock.

Specialized Alternative - ALD4211SCL (Advanced Linear Devices Inc.)

This part is suitable for low-leakage applications requiring minimal charge injection (0.2pC). On-state resistance of 135Ohm is significantly higher, limiting use to high-impedance signal paths. Operating temperature range is -40°C to 85°C. Supply voltage range is 3V to 12V single supply or ±1.5V to ±6V dual supply. Crosstalk specification is measured at 100kHz rather than 1MHz. ROHS3 compliant with MSL 1 rating. 1,087 units in stock.

Temperature-Limited Alternatives - DG441CY+ and DG441CY+T (Analog Devices Inc./Maxim Integrated)

These parts are restricted to 0°C to 70°C operating temperature range, unsuitable for applications requiring full -40°C to 85°C performance. On-state resistance is 85Ohm with expanded supply voltage ranges (10V to 30V single supply, ±4.5V to ±20V dual supply). DG441CY+T offers Tape & Reel packaging with 3,538 units in stock. Both are ROHS3 compliant with MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can DG441LEDY-T1-GE3 be used as a direct replacement for DG441LDY-T1-E3?

A: Yes. Both parts share identical switch topology (SPST-NC, 4 circuits), package form factor (16-SOIC), operating temperature range (-40°C to 85°C), and switching times (60ns/35ns). The DG441LEDY-T1-GE3 features lower on-state resistance (26Ohm vs 30Ohm) and superior crosstalk performance (-114dB vs -95dB), representing functional improvements. Supply voltage range is expanded from 2.7V-12V to 3V-16V single supply operation. Both are ROHS3 compliant with MSL 1 rating.

Q: What are the key differences between low-Ron and high-Ron substitute options?

A: On-state resistance directly affects signal attenuation and power dissipation. The original DG441LDY-T1-E3 specifies 30Ohm maximum. DG441LEDY-T1-GE3 provides 26Ohm (lower), while alternatives like ADG441BRZ (70Ohm), DG441CY+ (85Ohm), and ALD4211SCL (135Ohm) feature progressively higher resistance. Higher Ron values require circuit re-evaluation for impedance matching and signal integrity. Lower Ron reduces power dissipation and improves signal fidelity in low-impedance applications.

Q: Are all substitute parts pin-compatible with the original DG441LDY-T1-E3?

A: All listed substitutes share the 16-SOIC package form factor and identical pin count (16 pins). Physical compatibility is confirmed. However, electrical parameter differences (Ron, switching times, supply voltage ranges) require circuit validation before implementation.

Q: Which substitute is recommended for applications requiring the full -40°C to 85°C temperature range?

A: DG441LEDY-T1-GE3, ADG441BRZ, ADG441BRZ-REEL, ALD4211SCL, DG441DY+, DG441DY+T, DG441DYZ, and DG441DYZ-T all support -40°C to 85°C operation. DG441CY+ and DG441CY+T are limited to 0°C to 70°C and are unsuitable for full temperature range applications. DG441LEDY-T1-GE3 is the preferred choice due to closest electrical match and improved performance.

Q: What is the impact of higher charge injection in substitute parts?

A: Charge injection affects signal settling time and introduces transient errors in precision analog applications. The original part specifies 5pC. DG441LEDY-T1-GE3 has 6.6pC (slightly higher), while ADG441BRZ and ALD4211SCL feature significantly lower values (1pC and 0.2pC respectively). Lower charge injection is beneficial for high-speed sampling and precision signal routing applications.

Q: Are packaging options (Tube vs Tape & Reel) functionally equivalent?

A: Yes. Tube and Tape & Reel packaging contain identical die and electrical specifications. Packaging selection is determined by assembly process requirements and volume. DG441LEDY-T1-GE3 is available in Tape & Reel. DG441DYZ is available in Tube, while DG441DYZ-T is available in Cut Tape & Digi-Reel. All are functionally equivalent.

Q: What is the significance of MSL (Moisture Sensitivity Level) differences?

A: MSL 1 (Unlimited) indicates no moisture sensitivity restrictions and indefinite shelf life. MSL 2 (1 Year) requires controlled storage conditions and has a one-year shelf life from manufacturing. DG441DYZ and DG441DYZ-T are rated MSL 2, while all other substitutes are MSL 1. For applications with extended storage requirements, MSL 1 parts are preferred.

Q: Can DG441DYZ be used in place of DG441LDY-T1-E3 despite higher Ron?

A: DG441DYZ is functionally compatible if circuit design accommodates 85Ohm on-state resistance versus the original 30Ohm specification. The part maintains identical switch topology, package form factor, and full -40°C to 85°C operating range. Expanded supply voltage range (5V-34V single supply) provides greater flexibility. Slower switching times (250ns/120ns vs 60ns/35ns) may impact high-frequency applications. Circuit re-evaluation is required.

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