• AD5721的输出阻抗问题

    DAC的输出级是一个运放,特点是输入阻抗大,输出阻抗小。对于AD5721的输出电压能否驱动我们的负载来说,需要知道AD5721的输出阻抗,但是查阅手册没有这项数据,请问这个要怎么知道?麻烦解答了

  • AD5721 no output

    Hi there

    have a 5721 on the bench. 

    No output 

    want +/- 10V

    atmel 328P MPU

    SPI mode 1

    --Send software reset  7 0 0

    --Send control  4 0 0 

    --Send dac  3 255 125

    Nada.  Can see SPI OK with logic analyzer.  +/- 15V for analog, +5 for logic, +2.5 for ref.

    All V look…

  • RE: AD5761/AD5721 LFCSP EXPOSED PAD

    Hello armin,

    Alternatively, you can connect the exposed pad to a floating pad with vias on board for heat dissipation and better pcb mounting. We will take note and update this information on future revisions of the datasheet.

    Best regards,

    Ian

  • AD5761/21/R FAQ

    Q1. What external devices does the part require to operate as spec’d in the datasheet?

    A1. The AD5761R/AD5721R are 16-/12-bit Voltage output DAC which integrate a 2.5V 2ppm/˚C typical internal reference as well as reference and output buffers. The…

  • AD5721R芯片SDO管脚输出不正常

         STM32控制AD5721R芯片,DVCC3.3V供电,VDD12V,VSS-12V,RESET浮空,SYNC浮空,CLEAR浮空,ALEART浮空,使用外部参考电压,可以正常控制DAC电压输出,也可以控制DAC寄存器,但读DAC寄存器一直是零,SDO电平一直很低,见附图。

         而且刚开始使用内部参考电压时,用万用表测Vref电压只有0.72V左右。

         已经使能了菊花链。

         发送了读命令后,也格外发了个NOP命令,依然是没有数据输出。

         附图蓝色是时钟信号,黄色是DAC的SDO信号。

  • RE: AD5445 max voltage

    Hi Soundarajan,

    This thread is for the AD5445 Max Rating question. Please create a new post for your inquiry for the AD5721. You can do that by clicking here.

    Thanks,

    Mark

  • RE:   1/2 channel 0~10V differential ADC IC

    Hi,

    ADI has A/D & D/A Converter Combinations but the parts don't meet your requirements so we have to do this the brute force way. I would be able to assist on the DAC part. You may want to check the following parts:

  • RE: HMC812 Eval kit information

    HI S.ilke,

    Thanks for your prompt reply.

    I was thinking of using AD5721/61 DAC Device. Whether that is suitable or not. Please confirm accordingly.

    Regards,

    Sai

  • Help with DAC indication

    Hello.

    I need someone give me a digital to analog converter (DAC), which operates in the range of 0 to 15 volts, to apply in a test device.

    I found the AD5761 / AD5721 and also the AD5744R, but would like more indications.

    Note: I use a source 0 to…

  • TAGS LIST: Data Converters

    AD693
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    AD5735
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    AD5737
    AD5757
    AD5421
    AD421
    AD5758
    AD7569
    AD7669
    AD7868
    AD7869
    AD5593R
    AD5592R
    AD5940
    AD5941
    AD7293
    AD7294-2
    AD7292
    AD5590
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