• 关于AD8331和AD6645使用的问题

    ADI工程师:

            您好!我在使用AD6645的时候有点问题,向您请教一下。

            AD8331和AD6645交流耦合,AD8331的VCM引脚输出共模电压2.4V,AD6645的VREF引脚输出2.5V,可以把AD6645的VREF引脚直接和AD8331的VCM引脚连起来吗?

  • AD6645

    Hello,

    I use AD6645 evaluation board which has 105 MHz cyrstal to sample analog signal. I send sampled signal to a computer and plot that. The signal below which is at 200 KHz is sampled by AD6645 . The sine wave is generated by Agilent waveform generator…

  • AD6645 overshoot

    We design a data acquisition system and noticed an overshoot with a ~3us time constant in the ADC data. It is a small effect but it biases our data quality. I spent some time in identifying the source of the time constant.

    The source of the time constant…

  • RE: Trace lengths and widths for impedance matching

    Hi,

    The AD6645 I/O are CMOS, ~100MHz, so the trace design will not be so critical as long as they are less than a few inches (<6).  You can copy the traces from the layout of the product evaluation boards , The files for the AD6645 are located at…

  • AD6645: Overvoltage protection

    As we drive the AD6645 with a differential amplifier (AD8138), the question
    comes up if it is necessary to protect the AD6645 from negative voltages at its
    analog input. When supplying the op amp with a +/- supply voltage, the output
  • RE: ADC EVB interface with Blackfin EZ-Extender

    The EZ-Extender to DSP Supported HSC Evaluation Board list mentions the AD6645/PCB. The AD6645-80/PCBZ and AD6645-105/PCBZ are availible. Will these newer versions work with the EZ-Extender?

    Alternatively, could anyone reccomend me an ADC evaluation…

  • RE: FPGA Reference Design for AD6644/AD6645 and AD9764 Data Converters

    Yes, that's exactly how our AD6645 Eval Brd is typically configured as shown in the attached EVB schematic:

    AD6645 DRY output > DR_OUT > BUFLAT(via E1 jumper) > U2/U7 CLOCK

    The only difference it seems is that we also route the BUFLAT…

  • AD6645 105MSPS Clock Input

    Hi!

    May I know if LVDS of 350mV swing is sufficient to drive the AD6645 differential clock? 

    Thank you!

  • AD6645差分输入范围

    1.请问0-2V模拟信号经过AD8138转为差分信号输入AD6645,得到的差分信号是2.4±1V,是否超过了AD6645输入范围?

    2.手册上的这段话是说只能输入在2.4±0.55V吗?