DG211CSE Equivalent & Substitute Parts

Part Overview

The DG211CSE is a 4-circuit IC switch with SPST-NC (Single Pole Single Throw - Normally Closed) configuration, manufactured by Analog Devices Inc./Maxim Integrated. This interface component features 175Ohm on-state resistance and operates across dual supply voltages of ±4.5V to ±18V. The part is currently classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Switch Circuit	SPST - NC
Number of Circuits	4
On-State Resistance (Max)	175Ohm
Voltage - Supply, Dual (V±)	±4.5V ~ 18V
Switch Time (Ton, Toff) (Max)	1µs, 500ns
Channel Capacitance (CS(off), CD(off))	5pF, 5pF
Current - Leakage (IS(off)) (Max)	5nA
Crosstalk	-90dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the DG211CSE is determined by the following critical parameters:

Switch Configuration: SPST-NC topology with 4 circuits
Package Compatibility: 16-SOIC form factor (0.154", 3.90mm Width)
On-State Resistance: Maximum 175Ohm specification
Supply Voltage Range: Dual supply operation ±4.5V ~ 18V
Switching Performance: Ton/Toff specifications of 1µs/500ns
Leakage Current: Maximum 5nA specification
Crosstalk Performance: -90dB @ 100kHz minimum

Substitute parts are grouped into two categories:

Direct Manufacturer Equivalents (DG211CSE+, DG211CY+): Identical electrical specifications from Analog Devices Inc./Maxim Integrated, differing only in product status (active vs. obsolete) and RoHS compliance.

Cross-Manufacturer Alternative (DG211BDY-E3, DG211BDY-T1-E3): Vishay Siliconix parts with enhanced performance characteristics including lower on-state resistance (85Ohm), improved switching speed, and extended operating temperature range. These parts exceed the minimum parameter requirements of the DG211CSE.

Parameter Comparison

Parameter	DG211CSE	DG211CSE+	DG211CY+	DG211BDY-E3	DG211BDY-T1-E3
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Vishay Siliconix	Vishay Siliconix
Product Status	Obsolete	Active	Active	Active	Active
Switch Circuit	SPST - NC	SPST - NC	SPST - NC	SPST - NC	SPST - NC
Number of Circuits	4	4	4	4	4
On-State Resistance (Max)	175Ohm	175Ohm	175Ohm	85Ohm	85Ohm
Voltage - Supply, Dual (V±)	±4.5V ~ 18V	±4.5V ~ 18V	±4.5V ~ 18V	±4.5V ~ 22V	±4.5V ~ 22V
Switch Time (Ton, Toff) (Max)	1µs, 500ns	1µs, 500ns	1µs, 500ns	300ns, 200ns	300ns, 200ns
Channel Capacitance (CS(off), CD(off))	5pF, 5pF	5pF, 5pF	5pF, 5pF	5pF, 5pF	5pF, 5pF
Current - Leakage (IS(off)) (Max)	5nA	5nA	5nA	500pA	500pA
Crosstalk	-90dB @ 100kHz	-90dB @ 100kHz	-90dB @ 100kHz	-95dB @ 100kHz	-95dB @ 100kHz
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Not specified	Tube	Tube	Tube	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

DG211CSE+ and DG211CY+ are direct electrical equivalents to the DG211CSE, maintaining identical on-state resistance, switching times, and supply voltage specifications. Both parts are active products with ROHS3 compliance, addressing the obsolescence status of the original part. DG211CSE+ is available in tube packaging with 1,233 units in stock, while DG211CY+ is also tube-packaged with 775 units available. Selection between these two should be based on inventory availability and packaging requirements.

For Enhanced Performance (Cross-Manufacturer Alternative):

DG211BDY-E3 and DG211BDY-T1-E3 from Vishay Siliconix provide superior electrical performance with 85Ohm on-state resistance (51% reduction), faster switching times (300ns/200ns vs. 1µs/500ns), and extended operating temperature range (-40°C to 85°C vs. 0°C to 70°C). These parts exceed the DG211CSE parameter specifications and are suitable for applications requiring improved performance margins. DG211BDY-T1-E3 offers higher inventory availability (15,553 units) with cut tape and Digi-Reel® packaging options, while DG211BDY-E3 is available in tube packaging (1,322 units).

All substitute parts maintain identical 16-SOIC package geometry, REACH compliance, and EAR99 export classification as the original DG211CSE.

Frequently Asked Questions (FAQ)

Q: Can DG211CSE+ or DG211CY+ be used as direct drop-in replacements?

A: Yes. DG211CSE+ and DG211CY+ are electrically identical to DG211CSE with matching on-state resistance (175Ohm), switching times (1µs/500ns), supply voltage range (±4.5V ~ 18V), and all other critical parameters. Both are pin-compatible 16-SOIC packages. The primary differences are product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What are the advantages of using DG211BDY-E3 or DG211BDY-T1-E3?

A: The Vishay Siliconix alternatives provide enhanced performance: on-state resistance is reduced to 85Ohm (lower power dissipation), switching times are faster (300ns/200ns), leakage current is lower (500pA vs. 5nA), and crosstalk performance is improved (-95dB vs. -90dB). Operating temperature range extends to -40°C to 85°C. These parts are suitable for applications requiring improved performance margins or wider temperature operation.

Q: Are there any compatibility concerns with the 16-SOIC package?

A: No. All substitute parts use identical 16-SOIC (0.154", 3.90mm Width) packaging. PCB footprints and mounting procedures are identical. Packaging format differs (tube vs. cut tape/Digi-Reel®) but does not affect component compatibility.

Q: Which substitute part should be selected for new designs?

A: For new designs, DG211BDY-T1-E3 is recommended based on active product status, superior electrical specifications, extended operating temperature range, and highest inventory availability (15,553 units). This part provides performance headroom and long-term supply security.

Q: Are all substitute parts RoHS compliant?

A: DG211CSE+ and DG211CY+ are ROHS3 compliant. DG211BDY-E3 and DG211BDY-T1-E3 are also ROHS3 compliant. The original DG211CSE is RoHS non-compliant. All substitutes meet current RoHS requirements.

Q: What is the difference between DG211BDY-E3 and DG211BDY-T1-E3?

A: Both parts are electrically identical with identical specifications. The difference is packaging format: DG211BDY-E3 is supplied in tube packaging (1,322 units available), while DG211BDY-T1-E3 is supplied in cut tape and Digi-Reel® format (15,553 units available). Selection depends on assembly process requirements and inventory needs.

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