DG442DY Equivalent & Substitute Parts

Part Overview

The DG442DY is a 4-circuit SPST-NO IC switch manufactured by Analog Devices Inc./Maxim Integrated, designed for signal routing and switching applications in interface circuits. This component features 85Ohm on-state resistance and operates across single supply (10V–30V) or dual supply (±4.5V–±20V) configurations. The DG442DY is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO (Single Pole Single Throw - Normally Open)
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	85Ohm
Channel-to-Channel Matching (ΔRon Max)	4Ohm
Voltage - Supply, Single (V+)	10V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ ±20V
Switch Time (Ton, Toff Max)	250ns, 170ns
Charge Injection	5pC
Channel Capacitance (CS(off), CD(off))	4pF, 4pF
Current - Leakage (IS(off) Max)	500pA
Crosstalk	-100dB @ 1MHz
Operating Temperature Range	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the DG442DY are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitutability:

Primary Equivalence Criteria:

Switch circuit type: SPST - NO
Number of circuits: 4
Multiplexer/Demultiplexer configuration: 1:1
On-state resistance: 85Ohm maximum
Channel-to-channel matching: 4Ohm maximum
Supply voltage ranges: 10V–30V (single) and ±4.5V–±20V (dual)
Switch timing: 250ns (Ton), 170ns (Toff) maximum
Charge injection: 5pC
Channel capacitance: 4pF (CS(off) and CD(off))
Leakage current: 500pA maximum
Crosstalk: -100dB @ 1MHz
Operating temperature: -40°C to 85°C
Package: 16-SOIC surface mount

Identified Substitutes:

DG442DY+ (Direct Manufacturer Equivalent) – Active product status with identical electrical specifications and RoHS3 compliance
DG445DY+ (Parametric Equivalent) – Active product status with identical electrical specifications and RoHS3 compliance

Both substitutes maintain full parameter compatibility with the obsolete DG442DY across all electrical and mechanical dimensions.

Parameter Comparison

Parameter	DG442DY (Main)	DG442DY+ (Direct Equivalent)	DG445DY+ (Parametric Equivalent)
Switch Circuit	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	4	4	4
Multiplexer/Demultiplexer	1:1	1:1	1:1
On-State Resistance (Max)	85Ohm	85Ohm	85Ohm
Channel-to-Channel Matching (ΔRon Max)	4Ohm	4Ohm	4Ohm
Voltage - Supply, Single (V+)	10V ~ 30V	10V ~ 30V	10V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ ±20V	±4.5V ~ ±20V	±4.5V ~ ±20V
Switch Time Ton (Max)	250ns	250ns	250ns
Switch Time Toff (Max)	170ns	170ns	170ns
Charge Injection	5pC	5pC	5pC
Channel Capacitance CS(off)	4pF	4pF	4pF
Channel Capacitance CD(off)	4pF	4pF	4pF
Current - Leakage IS(off) (Max)	500pA	500pA	500pA
Crosstalk	-100dB @ 1MHz	-100dB @ 1MHz	-100dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-SOIC	16-SOIC	16-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

DG442DY+ (Direct Manufacturer Equivalent): This part is the recommended primary substitute for the obsolete DG442DY. It maintains identical electrical and mechanical specifications while offering active product status and RoHS3 compliance. The DG442DY+ is available in tube packaging and provides 2,100 units in current inventory.

DG445DY+ (Parametric Equivalent): This part provides full electrical parameter equivalence to the DG442DY and is suitable for applications where the base product number change is acceptable. The DG445DY+ is active, RoHS3 compliant, and available in tube packaging with 4,345 units in current inventory.

Both substitutes are manufactured by Analog Devices Inc./Maxim Integrated and carry identical regulatory certifications (REACH Unaffected, EAR99 ECCN classification, HTSUS 8542.39.0001). Selection between DG442DY+ and DG445DY+ should be based on design documentation requirements and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can DG442DY+ be used as a direct replacement for DG442DY? A: Yes. The DG442DY+ is electrically and mechanically identical to the DG442DY across all specified parameters. The primary difference is product status (active vs. obsolete) and RoHS3 compliance.

Q: What is the difference between DG442DY+ and DG445DY+? A: Both parts are parametric equivalents with identical electrical specifications. The difference lies in the base product number (DG442 vs. DG445). Both are active, RoHS3 compliant, and suitable for the same applications.

Q: Are there any packaging differences between the substitutes? A: No. All three parts (DG442DY, DG442DY+, and DG445DY+) use 16-SOIC surface mount packaging with identical dimensions (0.154" width, 3.90mm).

Q: Do the substitutes support the same supply voltage ranges? A: Yes. Both DG442DY+ and DG445DY+ support single supply (10V–30V) and dual supply (±4.5V–±20V) configurations identical to the original DG442DY.

Q: Are there compliance or regulatory differences? A: The DG442DY is RoHS non-compliant, while both DG442DY+ and DG445DY+ are RoHS3 compliant. All three parts are REACH Unaffected and carry the same ECCN and HTSUS classifications.

Q: What is the moisture sensitivity level for these parts? A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message