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The Intersil ISL84524 and ISL84525 devices are precision, bidirectional, analog switches configured as a 4 channel multiplexer/demultiplexer (ISL84524) and a double pole/double throw (DPDT) switch (ISL84525) designed to operate from a single +2V to +12V supply. Both have an inhibit pin to simultaneously open all signal paths.

ON resistance is 200Ω with a +5V supply and 500Ω with a +3V supply. Each switch can handle rail-to-rail analog signals. The off-leakage current is only 1nA at +25°C or 25nA at +85°C.

All digital inputs have 0.8V to 2.4V logic thresholds, ensuring TTL/CMOS logic compatibility when using a single +5V supply.

The ISL84524 is a 4 to 1 multiplexer device. The ISL84525 is a DPDT, which is perfect for use in 2-to-1 multiplexer applications.

Table 1 summarizes the performance of this family. For higher performance, see the ISL43640 and ISL43410 data sheets.

Key Features

• Drop-in Replacements for MAX4524 and MAX4525
• ON Resistance (RON) Max, VS = 5V: 200Ω
• ON Resistance (RON) Max, VS = 3V: 500Ω
• RON Matching Between Channels: <8Ω
• Low Charge Injection: 5pC (Max)
• Single Supply Operation: +2V to +12V
• Low Power Consumption (PD): <3µW
• Fast Switching Action (VS = 5V)
  • tON: 90ns
  • tOFF: 40ns
• Guaranteed Max Off-leakage @ 5V: 25nA
• Guaranteed Break-Before-Make
• TTL, CMOS Compatible
• Available in 10 Ld MSOP Package
• Pb-free available

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
  • 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