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CD4053B: Faster version

Part Number: CD4053B
Other Parts Discussed in Thread: CD74HC4053

I'm looking for a faster version of the CD4053 (Analog SPDT Switch)..

I wish it could switch the signal in about 5 nS.

Is there a component with these characteristics?

  • Hi Claudio,

    So it depends on how you are using the CD4053B - as we definitely have multi-channel 2:1 switches with much faster switching time than the CD4053B; however the CD4053B is a bit unique in that it was designed for low voltage but can be used with greater supply voltages than a typical 5V. Depending on how the switch is being used we may have a few good options. 

    Besides switching time - I would like to ask for the following information:

    1. Supply voltage that you using with this device?

    2. Analog I/O Max and Min Signal Levels

    Also is there any other specification that you may concerned about? If you can share the end equipment as well we may have parts optimized for those systems so if you can share it may prove to be fruitful to see if we can match you with a good part for this application!

    Please let me know!


    Best,

    Parker Dodson

  • Thanks for your response.

    1)  With CD4053 I use 3 power supply voltage: +3.3, 0 and -3.3v. These are voltage available on my application/project.


    2) Also my signal has a Max value of +3.3v and a minimum value of -3.3v

    CD 4053 have 3 SPDT. If there was a device with a higher number of SPDT, it would be preferibie for my application.

  • Hi Claudio,

    So based off of the voltage supply of the application the CD74HC4053 is the faster version of the CD4053B.

    It isn't 5ns - but your voltage supply (VCC - VEE) will be >5V which can help speed the transition time, and if the load is less than 15pF you could also possibly get some more time shaved off.

    The reason we are a bit limited in options is because of the supply range that you are using is one we don't currently have many options that support the +/- 3.3V supply. This part is significantly faster than the CD4053B still and it has some room to bring it down more in the application.

    We do have 4 channel 2:1's but they are generally either single supply or MId-Voltage (which typically has a 'standard' voltage of +/-15V) - so i don't think they will be the best option here. 

    Please let me know if you have any further questions!

    Best,

    Parker Dodson