• Inquiries about EXT_CAP of AD5271

    Hello,

    For circuit reasons, we are using the AD5271 with a voltage of Vdd:3.300V and Vss:-1.720V.

    We are using only RAM because writing to ROM does not work well, probably due to Vss.

    I am using RAM only.

    So, please tell me about the following.

    …

  • Inquiries about EXT_CAP of AD5271

    Inquiries about EXT_CAP of AD5271

     

    Hi all,

    For circuit reasons, we are using the AD5271 with a voltage of Vdd:3.300V and Vss:-1.720V.

     

    We are using only RAM because writing to ROM does not work well, probably due to Vss.

    I am using RAM only.

     

    So, please…

  • AD5270/AD5271 datasheet typo?

    Hello,

    I got some point out about AD5270/AD5271 datasheet.

    It seems not "Table 13" but "Table 15" at below passages.

    1) 3rd and 8th lines at 50-TP MEMORY BLOCK　on page 18

    2) 10th line at RDAC AND 50-TP READ OPERATION on page…

  • AD5271 Confirm the datasheet

    Hello, ADI team.

    My customer considering to use AD5271. He has the doubt to datasheet described. In datasheet p19, Table11,

    command7 , there is no description of the D3 is in error.To determine from Table 13 and 14, it seems like the need to select…

  • Daisy chaining AD5271 and ADG714 possibility

    Q 

    For SPI, Is it possible to daisy chain 8 x ADG714BRU potimeters together with
    the
    ADG714. As the ADG714 is 8 bits and the AD5271 is 16 bit

     

    A 

    It appears possible, but one must exercises care e.g. such as
    below (please note: presented…

  • AD5271 does not update the resistor value

    Hi,

    Before create this thread I tried different SPI command sequence in order to update the resistor of the AD5271.

    Currently I am doing the following:

        AD5271 connected to a FPGA.

        CPOL => '0'
        CPHA => '1'

        SCLK frequency 200…

  • About INTERFACE TIMING SPECIFICATION of AD5270/AD5271


    Hi all,

    I am asking about the SPI timing of the AD5270/AD5271 for write operation.
    Please tell me about tRDAC_R - PERF and tRDAC_NORMAL written in the data sheet.

    We thought as follows:

    Which is the right choice?

    ①Write command execution time of RDAC …

  • AD5271 Daisy Chain Issue, is res pull needed on last device?

    HI

     

    I have two device in daisy chain as per schematic (Figure 44), I have 4K7 resistor between two device just as per schematic in Fig 44.

     

    I have read the description under "SDO PIN AND DAISY-CHAIN OPERATION", it say nothing about SDO O/P on final…

  • 数字电位器AD5271 菊花链读操作，如何读

    想问下在菊花链操作（两个电位器芯片）中，可以正常写指令，但是读指令的话，SDO返回的数据都是第一个芯片的数据值，菊花链方式下如何读操作？

    请大神指点，谢谢。

  • RE: 50-TP memory of AD5270

    Yes, the TP-memory can be overwritten upto 50 times.

    The AD5270/AD5271 contain an array of 50-TP programmable memory registers, which allow the wiper position to be programmed up to 50 times. Table 13 shows the memory map. When the desired wiper position…