Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

  • State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 16 subscribers
  • Views 724 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CD4052B: I set Vee to ground, and find that the AC signal can go through CD4052B, I don't know if use it in this way;

michael gao
Prodigy 220 points
Part Number: CD4052B

Dears:

according to the datasheet:

1.Inputs should not be pushed more than 0.5 V above VDD or below VEE.

2.CD4052C can switch Analog Signals to 20 VP-P (VDD – VEE = 20V)

I'm confused on them, could you explan it for me, thanks.

  • 0
    TI__Mastermind 45430 points

    Michael,

    The CD4052B device supports dual supply rails and will support signals through the signal path that are between these rail voltages.  However, the signals passing through the switch must be within the supply rails and not exceed VDD or go below VEE because there are protection diodes that will begin to conduct under these conditions.

    For example, if you would like to support +/-10V signals 20Vpp you would set VDD to +10 V refrerenced to Vss and set VEE to -10V referenced to Vss.

    If you set Vee to ground the protection diode will clamp the signal as it goes below ground.  

    Thank you,

    Adam