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replacement for FSA5157 and FSA2466

Ranita Bera
Prodigy 610 points
Other Parts Discussed in Thread: TS5A12301E, TS3A44159, TS5A3154, TS3A5018

hi team,

Could you pls let me know the best part to compete with FSA5157 and FSA2466? 

  • 0
    TI__Expert 3900 points

    Hi Ranita,

    I can definitely help recommend some similar TI devices. If you have any more info on the end use application or most important parameters please let us know since that can allow us to provide better recommendations. For example the FSA5157 is a single channel SPDT, but maybe the customer is using multiple and could be better served with a multi-channel SPDT device. Or the customer may prefer a tradeoff of Ron vs BW or vice versa.

    I will provide a couple recommendations for the devices based on similarity.

     

    For the FSA5157 low Ron SPDT:

    The TS5A12301E seems to be a similar device with added value. The TS5A12301E can be operated at a higher VCC voltage, has similar Ron characteristics, and better THD. Both the Fairchild and TI devices support input logic of 1.8V compatibility. The added value of the TI TS5A12301E comes from the powered-off protection which lists the max leakage current of the switch pins when VCC=0V. As well as the decreased size of the TI device compared to the Fairchild device.

    The TS3A44159 has similar specs but is a 4-channel SPDT.

    The TS5A3154 operates at similar spec with a 0.9ohm Ron but a BW of 100MHz. This part also includes the powered off protection for VCC=0V.

     

     

    For the FSA2466 DPDT:

    The TS3A5018 device is described as a quad-SPDT. However, when you look at how the switches operate they are similar but the TI device used one input control and an enable instead of controlling two sets of SPDT with one control signal each. The TS3A5018 can operate down to 1.65V, Ron typical as low as 5.5ohm, and a bandwidth up to 300MHz. Again, an added feature of using this TI device is the powered-off protection which specifies the input current when VCC=0V.

     

    If none of these devices quite fit your need please let me know additional parameters and we can help you find the best solution!

     

    Another fast way to search for the best switch/mux is to use our new selection tool that easily allows you to specify the many parameters I was using to find the best solution for your application!