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…

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…

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…

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

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…

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…

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.

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

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…