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The Intersil ISL8394 device is a precision, quad SPDT analog switches designed to operate from a single +2V to +12V supply or from a ±2V to ±6V supply. Targeted applications include battery powered equipment that benefit from the devices' low power consumption (5µW), low leakage currents (2. 5nA max), and fast switching speeds (tON = 50ns, tOFF = 30ns). A 4Ω maximum RON flatness ensures signal fidelity, while channel to channel mismatch is guaranteed to be less than 2Ω. The ISL8394 is a quad single-pole/double-throw (SPDT) device and can be used as a quad SPDT, a quad 2:1 multiplexer, a single 4:1 multiplexer, or a dual 2-channel differential multiplexer.


  • Drop-in Replacement for MAX394
  • Four Separately Controlled SPDT Switches
  • ON Resistance (RON) 17Ω (Typ) 35Ω (Max)
  • RON Matching Between Channels <1Ω
  • Low Charge Injection 10pC (Max)
  • Low Power Consumption (PD) <5µW
  • Low Leakage Current (Max at 85°C) 2.5nA
  • Fast Switching Action
  • tON 50ns
  • tOFF 30ns
  • Guaranteed Break-Before-Make
  • Minimum 2000V ESD Protection per Method 3015.7
  • TTL, CMOS Compatible
  • Pb-free available


  • Battery Powered, Handheld, and Portable Equipment Barcode Scanners Laptops, Notebooks, Palmtops
  • Communications Systems Radios Base Stations RF "Tee" Switches
  • Test Equipment Ultrasound CAT/PET SCAN Electrocardiograph
  • Audio and Video Switching
  • General Purpose Circuits +3V/+5V DACs and ADCs Digital Filters Operational Amplifier Gain Switching Networks High Frequency Analog Switching High Speed Multiplexing

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type Buy Sample
Obsolete SOICW Tube

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL8394 Datasheet Datasheet PDF 673 KB
Application Notes & White Papers
AN1442: Powering AMD Uni-Plane and Split-Plane Processors with the ISL6323 Application Note PDF 1.93 MB
AN535: Design Considerations for a Data Acquisition System (DAS) Application Note PDF 843 KB