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The Intersil ISL43681 and ISL43741 devices are precision, bidirectional, analog switches configured as an 8 channel and a differential 4 channel multiplexer/demultiplexer. They are designed to operate from a single +2V to +12V supply or from a ±2V to ±6V supplies. The devices have an inhibit and inhibit bar pin to simultaneously open all signal paths. The devices also have a latch bar pin to lock in the last switch address.

ON resistance of 39Ω with a ±5V supply and 125Ω with a +3.3V supply. Each switch can handle rail to rail analog signals. The off-leakage current is only 0.1nA at +25°C or 2.5nA at +85°C.

All digital inputs have 0.8V to 2.4V logic thresholds, ensuring TTL/CMOS logic compatibility when using a single 3.3V or +5V supply or dual ±5V supplies. The ISL43681 is a single 8 to 1 multiplexer device and the ISL43741 is a diff 4 to 1 multiplexer device.

Key Features

• Fully Specified at 3.3V, 5V, ±5V, and 12V Supplies for 10% Tolerances
• ON Resistance (RON) Max, VS = ±4.5V 50Ω
• ON Resistance (RON) Max, VS = +3V 155Ω
• RON Matching Between Channels, VS = ±5V <2Ω
• Low Charge Injection, VS = ±5V 1pC (Max)
• Single Supply Operation +2V to +12V
• Dual Supply Operation ±2V to ±6V
• Fast Switching Action (VS = +5V)
  • tON 38ns
  • tOFF 19ns
• Guaranteed Max Off-leakage 2.5nA
• Guaranteed Break-Before-Make
• TTL, CMOS Compatible
• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Battery Powered, Handheld, and Portable Equipment
• Communications Systems
  • Radios
  • Telecom Infrastructure
  • ADSL, VDSL Modems
• Test Equipment
  • Medical Ultrasound
  • Magnetic Resonance Image
  • CT and PET Scanners (MRI)
  • ATE
  • Electrocardiograph
• Audio and Video Signal Routing
• Various Circuits
  • +3V/+5V DACs and ADCs
  • Sample and Hold Circuits
  • Operational Amplifier Gain Switching Networks
  • High Frequency Analog Switching
  • High Speed Multiplexing
  • Integrator Reset Circuits