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The Intersil ISL43143-ISL43145 devices are CMOS, precision, quad SPST 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 (5nA max), and fast switching speeds (t_ON = 52ns, t_OFF = 40ns). A 5Ω maximum R_ON flatness ensures signal fidelity, while channel-to-channel mismatch is guaranteed to be less than 2Ω.

The ISL43143/ISL43144/ISL43145 are quad single-pole/ single-throw (SPST) devices. The ISL43143 has four normally closed (NC) switches; the ISL43144 has four normally open (NO) switches; the ISL43145 has two NO and two NC switches and can be used as a dual SP_DT, or a dual 2:1 multiplexer.

Key Features

• Fully Specified for 10% Tolerances at VS = ±5V and V+ = 12V, 5V and 3.3V
• Four Separately Controlled SPST Switches
• Pin Compatible with DG411/DG412/DG413
• ON Resistance (RON Max.) 25Ω
• RON Matching Between Channels <1Ω
• Low Power Consumption (PD) <1µW
• Low Off Leakage Current (Max at 85°C) 2.5nA
• Fast Switching Action
  • tON 52ns
  • tOFF 40ns
• Minimum 2000V ESD Protection per Method 3015.7
• TTL, CMOS Compatible
• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Battery Powered, Handheld, and Portable Equipment
  • Barcode Scanners
  • Laptops, Notebooks, Palmtops
• Communications Systems
  • Radios
  • XDSL and PBX/PABX
  • RF "Tee" Switches
  • Base Stations
• Test Equipment
  • Medical Ultrasound
  • Electrocardiograph
  • ATE
• 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