• EVAL-ADHV4702-1 using single power supply

    Dear Sir/Madam,

    I am trying to modifying the EVAL-ADHV4702-1 evaluation board to single power supply (0-220V) mode, to amplify a 0V-2V triangle voltage waveform to 0-200V voltage:

    1. For the power management part (the flyback converter on board), I am…

  • LTspice ADHV4702-1

    你好,

    我需要輸出+-60V/1Aout的1KHz Sine wave,所以選了ADHV4702-1加上LT1166來模擬,發現在一開始的時候,輸出端有個pulse出現,

    於是參考ADHV4702-1 datasheet內的TYPICAL APPLICATION CIRCUIT 模擬,但是輸出總是會有一個pulse出現.

    於是改成Unity-Gain Buffer,並且輸入端下地,依然輸出有一個pulse出現.

    請問該如何解掉這根pulse呢?謝謝.

  • ADHV4702-1 LFCSP Package Documentation

    I can't find any documentation for the 12-lead, 7 mm × 7 mm LFCSP on the Leadframe Chip Scale Package Design Center page. Is that documentation available for the package?

  • ADHV4702-1 Power drive current

    As shown in the figure, what is the minimum drive current of the VCC and VEE power supply pins?

  • ADHV4702-1 Eval Board Design Documentation?

    Are the PCB design files available for this eval board? That would be very helpful. Thanks.

  • 增加ADHV4702-1输出功率的问题

    大家好:

        使用ADHV4702驱动压电陶瓷,驱动功率不够.设计了如附件中ADHV4702_1.rar的电路.仿真没有问题.但实际电路中150V电压会进行输出短路保护.M2也会变得非常烫手.不知道是什么原因,请帮我分析改正.

  • 关于ADHV4702-1运算放大器的产品咨询

    我需要设计一个如图所示的电路,红色部分是一个等效压电驱动器,其中包含一个等效电容Cpea,图中电容CrCpea相等,利用反相放大器产生一个反相的电压Vc,可以抵消掉等效电容Cpea上的电荷Qd,从而提取到的准确值。

    但是存在一个问题,源电压Vc是交流电压,且振幅比较大,约有200V-300V左右,频率大约在2kHz-3kHz,我在贵公司网站上只看到了耐压值最高110VADHV4702-1运算放大器,不知道还有没有耐压值更高的运算放大器,或者替代的解决方案

    希望能在这里得到帮助…

  • RE: ADHV4702 high current output

    Hello PPeixoto.  It's hard to answer without some more information.  Can you tell us if you mean 120V peak, or peak-to-peak?  Also, what gain is the ADHV4702-1 used in?  It looks at first glance that the performance you need is a bit beyond the capability…

  • RE: ADHV4702 ramp signal with high current output

    Thanks for the reply. It is clear to me that we can use MOSFET's IXTP3N120 and IXTP10P50P.

    Figure 64 of ADHV4702 datasheet shows the configuration of high current output.

    Resistors R3 and R5 values are not mentioned.

    Can you suggest which values should…