• AD7147: Can several AD7147 be used in parallel to realize a remote control with 35 buttons?

    Can several AD7147 be used in parallel to realize a remote control with 35
    buttons?

     

    Several AD7147 devices cannot be connected to the same sensor module or keypad
    design due to crosstalk and interference from the excitation signals of one

  • AD7147 power up timing

    Dear Community,

    I mounted 4 AD7147 on a single PCB to read from 48 capacitive sensors.

    To avoid the noise issues coming from AC Shield cross interference, I would need to activate the AD7147 chip (or even only the shileding) one at a time.

    1 - Could you…

  • AD7147: PCB layouts

    1)       Using the AD7142 is it possible to put the buttons on another board
    connected by a cable? Or is it better to have a short distance between the
    buttons and the AD717x?

    2)       Do you have PCB layouts for buttons for the AD7147 with one electrode…

  • AD7147 for pressure transducer - range 0 to 5bar

    Dear EZ,

    we are trying to use the AD7147 for getting precise pressure measurements applied on a flat surface. We created circular sensor pads connected to the AD input pins, and we tested them putting a dielectric layer on top of them as elastic trasnducer…

  • Design with AD7147: connector specification and sensor pad dimensions

    Dear EZ,

    looking at the design guidelines for AD7147, it is specified about the possibility to have flexible-rigid interface between sensors and the AD7147 chip (if properly shielded, figure below)

    My question is: how to best deal with the need for…

  • LDC - AD7147 Eval-Board

    When we connected an AD7143-1 externally to AD7147-1 evaluation board (instead
    of AD7147-1), we noticed an automatic change in configuration/ID register of
    EEPROM. When we reconnected AD7147-1 (instead of AD7143-1) the configuration/ID
    register…

  • AD7147: Multiple devices in one application

    How to handle multiple AD7147-1 (3) in one application?

     

    We do not recommend to use multiple AD7147 in one application since we have
    observed in previous applications serious crosstalk issues when using multiple
    devices on the same sensor. The…

  • AD7147 initialization parameters

    Dear community,

    I have 2 doubts related to the initialization parameters of the AD7147 CDC:

    1. are the values specified for bank1 initialization mandatory? Or I can directly set them to the values needed for my specific case (apart from Address 0x001…

  • We have 8 AD7147 on operating on a single 2-layer PCB which......

    We have 8 AD7147 on operating on a single 2-layer PCB which. Devices operate
    properly as long as only one AD7147 is exciting the electrodes. From the posts
    available at the ENGINEER zone I suspect the problem lies in the interference
    caused by the unsynchronized…