• About AD9740

    ADI工程师:

    您好!

    关于AD9740我有两个问题。

    1、它的时钟可以用200MHz吗?

    2、它的两个互补输出,我只需要用一个。原输出引脚我接到高速运放的同相端的一个49.9欧姆电阻上,这样20mA可以产生0到1V变化的输出,而互补引脚我直接接一个小电阻上,反正也不使用它。这样可以吗?

     礼

  • AD9740 IOUTFS dynamic control

    Hi

    I'm considering to control RSET, I'd like to change IOUTFS dynamically.

    Device: AD9740

    Expected range: 2mA to 20mA

    1. At first, Is it possible to change IOUTFS as AD9740 function? Do you recommend to control IOUTFS?

    2. If it is possible…

  • About configuration of AD9740

    Dear ADI expert,

    I recently want to use AD9740, but I'm not sure about some aspects of its configuration. Here are 2 points.

    1. Datasheet's page 8 says AD9740 pin 19 and pin 23 are not connected. However, Fig40 at page 21 shows they're respectively…

  • AD9740 Behavior of Clock Stopping

    Hi,

    Please let me know about clock specification and device behavior.

    Since there is no MAX specs for timing, I would like to know behavior when clock slowly or stopped.

    For reducing current consumption, I expect to able to stop clock intermittently…

  • Max time to power back from sleep mode of AD9740

    Hi,

    There is the sentence "The AD9740 takes approximately 5 μs to power back up." in datasheet.


    1.Could you define max time to power back?

    2.Is the max time same among AD9740, AD9742 and AD9744?


    Thanks,

     

  • RE: how to extend a 8bits DAC pecision to 10 bits 12bit and more

    Hello, 

    Not sure if I fully understand the question, but if you need a 10-bit DAC why did you buy an 8-bit DAC?... I do not mean to be cavalier about it, but if DAC resolution could be easily increased through software, why would ADI offer HS DACs with 

  • RE: Analog output interface for HS-DACs

    At lower frequencies, an op amp can be used to acheive differential-single ended conversion along with some gain if needed. For example, one recommended configuration for the AD9740 is shown below. Suggested op-amps for the interface are AD8055, AD8057…

  • RE: DAC AD9744 evaluation board with DPG3

    For AD974x low speed DAC family products, we are recommending our customer to use SDPH1 instead of DPG2/DPG3 for the evaluation. SDPH1 plus AD-DAC-FMC-ADP can fully replace the DPG2/DPG3. And it’s much cheaper and easily setup.

        Some ADI precision DACs…

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