The Intersil ISL43140-ISL43142 devices are CMOS, precision, quad 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 (1µW), low leakage currents (1nA max), and fast switching speeds (tON = 30ns, tOFF = 18ns). A 12Ω maximum RON flatness ensures signal fidelity, while channel-to-channel mismatch is guaranteed to be less than 2. 5Ω. The 3mm x 3mm Quad No- Lead Flatpack (QFN) package alleviates board space limitations, making this newest line of low-voltage switches an ideal solution. The ISL43140/ISL43141/ISL43142 are quad single-pole/ single-throw (SPST) devices. The ISL43140 has four normally closed (NC) switches; the ISL43141 has four normally open (NO) switches; the ISL43142 has two NO and two NC switches and can be used as a dual SPDT, or a dual 2:1 multiplexer.


  • Fully Specified at ±5V, 12V, 5V, and 3V Supplies for 10% Tolerances
  • Four Separately Controlled SPST Switches
  • Pin Compatible with DG411/DG412/DG413
  • ON Resistance (RON) 50Ω
  • RON Matching Between Channels 2Ω
  • Low Charge Injection 5pC (Max)
  • Low Power Consumption (PD) <1µW
  • Low Leakage Current (Max at 85°C) 5nA
  • Fast Switching Action
  • tON 30ns
  • tOFF 18ns
  • Guaranteed Break-Before-Make (ISL43142 only)
  • Minimum 2000V ESD Protection per Method 3015.7
  • TTL, CMOS Compatible
  • Pb-free Available



  • Battery Powered, Handheld, and Portable Equipment Cellular/Mobile Phones Pagers Laptops, Notebooks, Palmtops
  • Communications Systems Military Radios RF "Tee" Switches
  • Test Equipment Ultrasound Electrocardiograph
  • Heads-Up Displays
  • 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

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