• Question about AD5629R & AD5629R-1


     1) How to read out the AD5629R input register value for every channel? Can you provide the detailed I2C waveform on channel A & G?

     2) In the page 24 of AD5629R datasheet Rev.E, there is one line "DB1 selects the internal reference value", but…

  • AD5629R multiple byte operation

    Hello all,

    I have read in the datasheet of  AD5629R that setting bit DB22 to 0 means standard 3-byte and 4 byte mode. I am a little unclear how does this work. How to change between 3 and 4 byte mode ?

    If i set this mode, I don't know how many bytes…

  • Couple of questions re: AD5629R power-down behavior

    Hi -- I've got two questions on the data sheet for the AD5629R (Rev. D).

    1) Page 21 says that "Individual channel power-down is not supported while using the internal reference."  Does this mean that none of the 0100 commands (Power down…

  • AD5629R I2C Address.  I see and can control the chip at bus address 0x08 (A0 tied to ground).  Why is it not 0x57

    AD5629R documentation indicates that the chip should be found at I2C addresses 0x54, 0x56, 0x57 depending on the connection to pin A0.

    I have pin A0 committed to ground and see the chip responding at I2C address 0x08.  I can control and operate the chip…

  • RE: AD5669-1 "Invalid argument" when reading/writing _scale sysfs attributes

    Okay, that's what I had understood from the datasheet. The first paragraph of the "Internal Reference" section on page 21 is somewhat confusingly worded:

    "The AD5629R/AD5669R have an on-chip reference with an internal gain of 2. The…

  • RE: AD5669R I2C high speed

    Hi Chris,

    There is no difference between the parts. The AD5629R/AD5669R support standard (100 kHz) and fast (400 kHz) modes. The AD5668 is the SPI compatable alternative with a 50MHz interface.



  • RE: error with AD5669R

    Good afternoon. Datasheet question on AD5629R/AD5669R. In particular page 3, Table 1, the parameters of REFERENCE OUTPUT (1.25 V) and REFERENCE OUTPUT (2.5 V) in the graph Unit installed uA (micramps). Probably should be a unit V (Volts)?

  • RE: Sine wave generation


    Your application would require more programming on your side. The software will be the one to tell the converter on how much it would need to change the outputs.

    As for the DACs, You may want to take a look at AD5629R or AD5669R. They have 8 channels…

  • RE: nanoDAC-What are nanoDACs?

    nanoDACs are a portfolio of products which combine small package, low power and low cost digital to analog conversion.

    nanoDACs are monotonic DACs which can be powered off a single 3V or 5V supply and are available in the industries smallest packages…

  • nanoDAC - Which DACs should be used for open loop systems and which DACs should be used in closed loop systems?

    It must be stressed that depending on the application performance requirements, all nanoDACs can be used in both open and closed loop systems.

    In an open loop application the DAC drives the load (a valve or an actuator, for example) directly while in…