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Ultra-Low-THD Dual-SPDT (0.35?) Analog Switch with Negative Signal Handling Capability

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Product Description

The PI3A288 is a dual, single-pole double throw (SPDT) CMOS switch with negative signal handling capability at all ports. It can be used as an analog switch or as a low-delay bus switch. Operating over a wide power supply voltage ranges from 1.65V to 4.3V, the PI3A288 processes a low on-resistance and distortion. The ultralow THD performance enables the PI3A288 to apply in high-quality audio applications. The PI3A288 has also a soft-start and soft-stop feature so as to minimize signal disruption during channel switching


  • CMOS Technology for Bus and Analog Applications
  • Negative Signal Handling Capability at all Ports
  • Low On-Resistance: 0.35Ω at 1.8V Supply
  • On-Resistance Flatness 0.001Ω
  • Wide VDD Range: 1.65V to 4.3V
  • 2.0Vrms analog signal range
  • Programmable soft-start and soft-stop time
  • -3dB Bandwidth: 255MHz
  • High Off Isolation: -85dB @ 30kHz
  • Low THD: 0.0003% from 20Hz to 20kHz, 0.5VRMS
  • Crosstalk Rejection Reduces Signal Distortion: -85dB @ 30kHz
  • High-impedance mode when VDD not applied
  • Extended Industrial Temperature Range: –40°C to 85°C
  • Packaging (Pb-free & Green):
  • –10-contact UQFN (ZM10)


  • Cell Phones, PDAs, MP3 Players
  • Portable Instrumentation
  • Computer Peripherals
  • Speaker Headset Switching
  • Power Routing
  • Relay Replacement
  • Audio and Video Signal Routing
  • PCMCIA Cards
  • Modems

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Configuration N/A
Differential Channels N/A
HotInsertion 0
Lanes N/A
OtherFeatures N/A
RailToRail 0
Signal Type N/A
Single Ended Channels N/A
Voltage 1.65-4.3

Technical Documents

Recommended Soldering Techniques


Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

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Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
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Qty. Carrier
PI3A288ZMEX Active U-QFN1418-10 TPGP 3000 T&R


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 815 6/15/2021 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 45 6/15/2021 South America, North America, Asia, Europe, Middle East Buy Now
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Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free


Product Change Notices

PCN # Issue Date Implementation Date Subject
PCN-2448 2020-02-05 2020-08-05 Device End of Life (EOL)