DG212CJ Equivalent & Substitute Parts

Part Overview

The DG212CJ is a 4-circuit SPST-NO analog switch IC manufactured by Analog Devices Inc./Maxim Integrated, housed in a 16-DIP package. This component functions as a precision electronic switch with 175Ohm on-state resistance and operates across dual supply voltages of ±4.5V to ±18V. The DG212CJ is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility through matching switch topology, circuit count, package form factor, and critical electrical parameters.

Substiute Parts

DG212CJ

Analog Devices Inc./Maxim IntegratedIn Stock: 2017DG212CJ Datasheet

Current PartRFQ

DG212CJ+

Analog Devices Inc./Maxim IntegratedIn Stock: 1144DG212CJ+ Datasheet

DirectRFQ

ADG212AKNZ

Analog Devices Inc.In Stock: 3170ADG212AKNZ Datasheet

MFR RecommendedRFQ

DG212BDJ-E3

Vishay SiliconixIn Stock: 15685DG212BDJ-E3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DG212CJ is determined by the following mandatory parameters:

• Switch circuit topology: SPST - NO configuration
• Circuit count: 4 independent circuits
• Multiplexer ratio: 1:1
• Package form factor: 16-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Channel capacitance: 5pF off-state capacitance (both CS(off) and CD(off))

Parts meeting these core criteria are classified as direct substitutes. Secondary parameters including on-state resistance, supply voltage range, switch timing, leakage current, and crosstalk performance may vary within acceptable engineering tolerances. Parts with improved specifications (lower resistance, faster switching, lower leakage, extended temperature range) are considered enhanced substitutes suitable for applications requiring superior performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

DG212CJ+ (Direct Equivalent)

The DG212CJ+ is the direct successor to the DG212CJ, maintaining identical electrical specifications including 175Ohm on-state resistance, ±4.5V to ±18V dual supply voltage range, and 1µs/500ns switching times. This part is manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and is classified as active product status. The primary distinction is RoHS3 compliance, making DG212CJ+ the preferred choice for new designs and applications subject to environmental regulations. Packaging is supplied in tube format.

ADG212AKNZ (Enhanced Performance Substitute)

The ADG212AKNZ offers improved electrical performance with reduced on-state resistance (115Ohm versus 175Ohm), faster switching times (600ns/450ns versus 1µs/500ns), and extended operating temperature range (-40°C to 85°C versus 0°C to 70°C). This part is manufactured by Analog Devices Inc. and carries active product status with ROHS3 compliance. The supply voltage specification is fixed at ±15V, which differs from the DG212CJ's ±4.5V to ±18V range. Selection of ADG212AKNZ is appropriate for applications requiring superior performance metrics and wider temperature operation, provided the ±15V supply voltage requirement is compatible with system design.

DG212BDJ-E3 (Superior Performance Substitute)

The DG212BDJ-E3, manufactured by Vishay Siliconix, delivers the highest performance profile among available substitutes with 85Ohm on-state resistance, 300ns/200ns switching times, and 500pA leakage current (100 times lower than DG212CJ). Extended operating temperature range (-40°C to 85°C) and superior crosstalk performance (-95dB @ 100kHz) are provided. Supply voltage range is ±4.5V to ±22V, offering broader compatibility than the original part. This part is active and ROHS3 compliant. DG212BDJ-E3 is selected for applications demanding minimal on-state resistance, fastest switching response, and lowest leakage characteristics.

Frequently Asked Questions (FAQ)

Q: Can DG212CJ+ be used as a direct replacement for DG212CJ?

A: Yes. DG212CJ+ maintains identical electrical specifications and package form factor. The primary difference is active product status and RoHS3 compliance, making it the recommended direct substitute for obsolete DG212CJ applications.

Q: What are the key differences between ADG212AKNZ and DG212CJ?

A: ADG212AKNZ provides improved on-state resistance (115Ohm versus 175Ohm), faster switching times (600ns/450ns versus 1µs/500ns), and extended temperature range (-40°C to 85°C versus 0°C to 70°C). The supply voltage is fixed at ±15V rather than the variable ±4.5V to ±18V range of DG212CJ. Channel capacitance and circuit topology remain identical.

Q: Is DG212BDJ-E3 compatible with DG212CJ applications?

A: DG212BDJ-E3 is functionally compatible as a 4-circuit SPST-NO switch in 16-DIP package. It offers superior electrical performance with lower on-state resistance (85Ohm), faster switching, and reduced leakage current. The supply voltage range (±4.5V to ±22V) is broader than DG212CJ, ensuring compatibility with existing power supplies.

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

A: Yes. All substitute parts (DG212CJ+, ADG212AKNZ, DG212BDJ-E3) are housed in 16-DIP (0.300", 7.62mm) through-hole packages, ensuring mechanical and electrical compatibility with DG212CJ PCB layouts.

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

A: DG212CJ+ is recommended for direct replacement with minimal design changes. For applications requiring enhanced performance, ADG212AKNZ or DG212BDJ-E3 provide superior specifications. Selection depends on specific application requirements for on-state resistance, switching speed, temperature range, and supply voltage compatibility.

Q: Are all substitute parts RoHS compliant?

A: DG212CJ+ (ROHS3 Compliant), ADG212AKNZ (ROHS3 Compliant), and DG212BDJ-E3 (ROHS3 Compliant) all meet RoHS3 requirements. The original DG212CJ is RoHS non-compliant.