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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 (t_ON = 30ns, t_OFF = 18ns). A 12Ω maximum R_ON 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.

Key Features

• 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

Applications

• 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