The Intersil ISL84521, ISL84523, ISL84523 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 = 45ns, tOFF = 15ns). A12Ω maximum RON flatness ensures signal fidelity, while channel-to-channel mismatch is guaranteed to be less than 4Ω.

The ISL84521, ISL84522, ISL84523 are quad single-pole/ single-throw (SPST) devices. The ISL84521 has four normally closed (NC) switches; the ISL84522 has four normally open (NO) switches; the ISL84523 has two NO and two NC switches and can be used as a dual SPDT, or a dual 2:1 multiplexer.

• Drop-in Replacements for MAX4521 - MAX4523
• Four Separately Controlled SPST Switches
• Pin Compatible with DG411, DG412, DG413
• ON Resistance (RON Max.) 100Ω
• RON Matching Between Channels <1Ω
• Low Power Consumption (PD) <1µW
• Low Leakage Current (Max at 85oC) 10nA
• Fast Switching Action
  • tON 45ns
  • tOFF 15ns
• Break before Make Timing
• Minimum 2000V ESD Protection per Method 3015.7
• TTL, CMOS Compatible

• 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