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The PS4066ACSD is a CMOS analog switch manufactured by Diodes Incorporated, formerly Pericom. It integrates four independent single-pole single-throw (SPST) switches in a 14-pin narrow-body SOIC package. The device supports supply voltages from 2.7V to 15V and offers low on-resistance of 40Ω at 5V and 50Ω at 12V. Key electrical characteristics include high off-isolation exceeding 56dB at 5V and low leakage current below 50nA. It features rail-to-rail signal handling, fast switching times, and compliance with MIL-STD-883 Method 3015.7 ESD standards.
Verify the component authenticity by checking the manufacturer marking against Diodes Incorporated or Pericom Semiconductor records. Confirm the package type matches the narrow-body SOIC-14 specification. Ensure the operating temperature range aligns with commercial or industrial requirements before finalizing procurement orders.
Select this component when designing circuits requiring multiple analog channels in a small footprint. Consider the 40Ω on-resistance at 5V for low-power applications. Verify that the input signal levels remain within the V+ and GND rails to prevent internal diode conduction issues during operation.
This part belongs to the PS4066 family of CMOS analog switches. It serves as a direct replacement for legacy Pericom Semiconductor parts. The AC suffix typically denotes specific testing or packaging variations within the Diodes Incorporated portfolio. It is designed for general-purpose signal switching in consumer and industrial electronics.
The PI5A391/PI5A392 are recommended alternatives for operations below 5V. Verify pin compatibility and on-resistance specifications when substituting with other quad SPST CMOS switches from different manufacturers.