DG412 analog multiplexer/demultiplexer IC, and RS is likely the distributor’s marking (like RS Components or a sourcing identifier).

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DG412 Overview:

• Type: Quad SPST (Single-Pole Single-Throw) analog switch

• Function: It has 4 independent analog switches that can route analog signals under digital control — useful for signal routing, multiplexing, or switching analog inputs/outputs in circuits.

• Voltage Range: Operates typically from ±5V to ±15V or single supply 10V to 30V

• Low on-resistance: Usually around 35-60 Ohms

• Package: The DJ suffix typically indicates a plastic DIP (Dual Inline Package) or SOIC (depending on manufacturer)

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Additional Markings:

• B A G9648AI

• G9648AI is probably the date/lot code

• In this case, likely 48th week of 1996, production batch AI

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Use Case:

The DG412 is often used in:

• Analog signal routing

• Audio switchers

• Data acquisition systems

• Instrumentation

• Anywhere you need reliable, digitally controlled analog paths