• AD5274 userspace driver

    We are using the ad5274 device to control an LCD contrast pin. I have successfully instantiated the ad5274 linux driver. The driver exposes a couple of files in /sys/bus/i2c/devices/000-02c. The files of note are rdac0, otp0en, and otp0. I can't find…

  • ad5274 linux access

    We are using the ad5274 device to control an LCD contrast pin. I have successfully instantiated the ad5274 linux driver. The driver exposes a couple of files in /sys/bus/i2c/devices/000-02c. The files of note are rdac0, otp0en, and otp0. I can't find…

  • AD5274 shutdown mode

    Hi,

    I have a question about AD5274 in shutdown mode. From my understanding, the shutdown mode would provide infinity resistance between port A and port W. Am I correct?

    I'm using this chip to set the gain of an amplifier. I put the chip to shutdown…

  • wiper settling time of AD5272/AD5274

    can you please tell me what is the wiper setting time of AD5272/AD5274 Digital Rheostat?

  • AD5272 / AD5274 Power-up sequence

    Hello,

    Currently reading the datasheet of these components, I wish to ask you some more information about the power-up sequence.

    On page number 24 of the datasheet (revision C), I can read that the ideal power-up sequence is : 1.VSS, 2. VDD and then…

  • AD5274 I2C controlable potentiometer programming issue

    Hey to you all,

    I have a stupid problem, like problems mostly are.

    I use a AD5274, it is a I2C controllable potentiometer, you can set the potentiometer value by sending a 8 bit value towards its RDAC register, and when it is fine for you, you can…

  • AD5274 user user guide with stm32 controller

    Hi,

    I am unable to find the initialization sequence for AD5274 with the stm32.

    Please provide me any user guide to use the AD5274 along with the stm32 controller (non os).

    Thank you.

  • Wiper setting time of AD5272/AD5274 Digital Rheostat?

    can you please tell me what is the wiper setting time of AD5272/AD5274 Digital Rheostat?

  • Reg: Problem in Writing RDAC of AD5274 through I2C

    Hello All,

    I tried to change the RDAC Register value of AD5274BRMZ-20 (20K-Max) through I2C. But the resistance between the A & W pins is always constant to 9.25K(Mid Value).

    I have sent the following Values through I2C.

    Device Address : 0X2C (I have…

  • Parallel digital potentiometers

    Hello,

     

    In my application I will need four digital potentiometers (AD5272/AD5274), which I will connect parallel. Could you tell if that is possible? If it is possible, you can give instructions how I will manage this.

    Thank you,

    Andreas Karkotis