The ISL54059 device is a low ON-resistance, low voltage, bidirectional, dual single-pole/double-throw (SPDT) analog switch. It is designed to operate from a single +1.8V to +6.5V supply and pass signals that swing down to 6.5V below the positive supply rail. Targeted applications include battery-powered equipment that benefit from low rON (0.56Ω), low power consumption (8nA) and fast switching speeds (tON = 55ns, tOFF = 18ns). The digital inputs are 1.8V logic-compatible up to a +3V supply. The ISL54059 is offered in a small form factor package, alleviating board space limitations. It is available in a tiny 10 Ld 1.8mm x 1.4mm µTQFN or 10 Ld 3mm x 3mm TDFN package. This device is a committed dual single-pole/double-throw (SPDT) that consists of two normally open (NO) and two normally closed (NC) switches with independent logic control. This configuration can be used as a dual 2-to-1 multiplexer.


  • Pb-free (RoHS compliant)
  • Negative signal swing (Max 6.5V below V+)
  • ON-Resistance (rON)
    • V+ = +4.5V: 0.52Ω
    • V+ = +4.3V: 0.65Ω
    • V+ = +2.7V: 0.9Ω
    • V+ = +1.8V: 1.8Ω
  • rON matching between channels: 10mΩ
  • rON flatness across signal range: 0.33Ω
  • Low THD+N @ 32Ω load: 0.02%
  • Single supply operation: +1.8V to +6.5V
  • Low power consumption at 3V (PD): 24nW
  • Fast switching action (V+ = +4.3V)
    • tON: 43ns
    • tOFF: 23ns
  • ESD HBM rating: >6kV
  • Guaranteed break-before-make
  • 1.8V logic compatible (+3V supply)
  • Low I+ current when VINH is not at the V+ rail
  • Available in 10 Ld µTQFN 1.8mm x 1.4mm and 10 Ld 3mm x 3mm TDFN




  • Audio and video switching
  • Battery-powered, handheld, and portable equipment
    • MP3 and multimedia players
    • Cellular/Mobile phones
    • Pagers
    • Laptops, notebook PCs and palmtops
  • Portable test and measurement
  • Medical equipment


Type Title Date
Datasheet PDF 740 KB
Product Advisory PDF 414 KB
Product Change Notice PDF 202 KB
Product Change Notice PDF 326 KB
Other PDF 293 KB
Product Change Notice PDF 205 KB
Application Note PDF 843 KB
Application Note PDF 468 KB
8 items

Design & Development

Boards & Kits

Boards & Kits