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The Intersil ISL54056 device is a low ON-resistance, low voltage, bidirectional, Quad SPDT (Dual DPDT) analog switch designed to operate from a single +1.65V to +4.5V supply. Targeted applications include battery powered equipment that benefit from low r_ON (0.39Ω) and fast switching speeds (t_ON = 30ns, t_OFF = 16ns). The digital logic input is 1.8V logic-compatible when using a single +3V supply. With a supply voltage of 4.2V and logic high voltage of 2.85V at both logic inputs, the part draws only 12µA max of ICC current.

Cell phones, for example, often face ASIC functionality limitations. The number of analog input or GPIO pins may be limited and digital geometries are not well suited to analog switch performance. This part may be used to "mux-in" additional functionality while reducing ASIC design risk. The ISL54056 is offered in small form factor package, alleviating board space limitations.

The ISL54056 consists of four SPDT switches. It is configured as a dual double-pole/double-throw (DPDT) device with two logic control inputs that control two SPDT switches each. The configuration can be used as a dual differential 2-to-1 multiplexer/demultiplexer. The ISL54056 is pin compatible with the NLAS3799 and NLAS3799L.

Key Features

• Pin Compatible Replacement for the NLAS3799 and NLAS3799L
• ON-Resistance (rON)
  • V+ = +4.3V 0.39Ω
  • V+ = +3.0V 0.45Ω
  • V+ = +1.8V 0.65Ω
• rON Matching between Channels 0.05Ω
• rON Flatness Across Signal Range 0.05Ω
• Single Supply Operation +1.65V to +4.5V
• Low Power Consumption (PD) <0.68µW
• Fast Switching Action (V+ = +4.3V)
  • tON 30ns
  • tOFF 16ns
• Break-Before-Make
• 1.8V Logic Compatible (+3V supply)
• Low ICC Current when VinH is not at the V+ Rail
• Available in 16 Ld 2.6mmx1.8mmx0.5mm µTQFN
• ESD HBM Rating
  • COM Pins 9kV
  • All Other Pins 6kV
• Pb-Free Available (RoHS Compliant)

Applications

• Battery Powered, Handheld, and Portable Equipment
  • Cellular/Mobile Phones
  • Pagers
  • Laptops, Notebooks, Palmtops
• Portable Test and Measurement
• Medical Equipment
• Audio and Video Switching