• AD5252 I2C Issues

    Hi there,

    I was hoping to get some help with issues I am experiencing with the I2C protocol for the AD5252 chip.

    I am trying to communicate with the chip using the MCP2221 chip.

    For reference:

    AD5252--> 50K potentiometer

    AD1 is set low (0) and AD0…

  • AD5252: FAQ

    FAQ

  • AD5252: Channal matching

    Q 

    What is the channel matching on dual digipot devices

     

    A 

    The matching between Ch1 and Ch2 in the dual digital potentiometers is
    typically 0.1-0.2% and we usually specify ±1% as a maximum. (These specs can be
    found in the datasheets). This…

  • AD5252 I2C pins on VDD+0.3V

    Q 

    I'd like supplying the AD5252 with +/-3Vdc instead of +/-2.75V, and using 
    0/+3.3V for I2C digital signals. Could I encounter some problems? The absolute
    max ratings for supply is Vdd to Vss =7V, and Vdd+0.3V for digital I2C bus.
    Thankings a…

  • AD5251, AD5252, Theta JC Values

    Q 

    Could you please provide the Theta JC valus for the AD5251, AD5252, in the
    datasheet I only found ThetaJA

     

    A 

    please see attached

    Attachments:

  • AD5252 I2C rise time

    Hello

    Is the rise time of AD5252's SCL and SDA defined as the rise time of 30% to 70% ?

    I can't find above information in the datasheet rev.E P.7.table3 and  P.14 figure 23 .

    Please let me know your advice.

    Regards,

    Teli

  • Tying DGND to VSS on AD5252

    Hi,

    I am planning to use the AD5252 and AD5254 on a programmable filter and interface the components using I2C with an Arduino Nano. The filter supplies are bipolar VDD=+2.5V,VSS=-2.5V.

    I was hoping to use the same supplies to power the Arduino by setting…

  • AD5252 Bandwidth?

    Hello,

    I am working on a circuit that has an pulse input from an FPGA with LVCMOS3V3 level. The pulse can range from 50ns to 1ms.

    The circuit should convert this LVCMOS3V3 signal to a variable 5V to 28V signal with a rise and fall time less than 10ns…

  • RE: ad5252 and Acknowledge Polling

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    …

  • AD5252 EEMEM & RDAC

    Hi,

    I'm trying to figure out the situation with the device memory. My application assumes that a digipot is controlled at 100Hz, which means that EEMEM will be corrupted in average in 16 minutes (100,000 cycles according to the data sheet). The data…