• 求AD7765示例代码

    急求AD7765示例代码!!!

  • AD7765 Count to voltage Conversion ?

    Hi !

    I am using AD7765 EVAL Board with Artix-7 FPGA board. 

    MCLK - 40MHz on board crystal available on EVAL AD7765 Board.

    DEC Rate - 128x with ODR = 156.2kHz.

    I am giving 1VDC input from voltage source to Pin 2 (+ve) and Pin 3 (-ve) of J1 Connector on…

  • RE: AD7765数据输出问题

    AD7765是主机,STM32要设置成从机。

  • AD7765同步问题

    大家好,我最近在使用AD7765芯片。根据电路笔记中的电路描述,我对四片AD7765进行同步,不知道为什么总是同步不上,希望各位达人,大牛提供帮忙,感激不尽!

  • RE: What is the difference between REFIN- and REFGND

    Hello Sympson,

    the REFGND pin of the AD7765 must be tied to AGND.  It cannot be tied to a voltage above ground as can be done with the AD7195.

    Regards,

    Mary.

  • AD7765 128x Decimation Not Working

    I have a board that is daisy chaining 4x AD7765's and have it happily working in DEC_RATE = 0 (256x), BUT I cannot get 128x to work correctly.

    Q1: What level do I set DEC_RATE to 128x? Do I drive it high or set it floating?

    Here is a trace of it…

  • RE: AD7765 SPI Compatible?

    Hi Ronaldo,

    Changing the clock source to come from the crystal oscillator takes care of the MCLK signal source.

    This MCLK is the core clock to run the ADC conversions and also times the output data rate signal FSO and the data clock SCO.

    The interface…

  • AD7765的数据输出口SDO输出全是1怎么办

    按照芯片资料写的读时序函数,但不知为什么数据输出全是1,是不是得先对AD控制寄存器进行写操作?

    用示波器测得读时序和SDO电平如下图

    u32 ADC_Read(void)

    {

              u8 i;

              u32 temp = 0;

      SCK = 0;

      delay_us(5);

              FSO = 1;

      SCK = 1;

      delay_us(5);

      SYNC = 0;

              SCK = 0;

              delay_us(5);

              SCK = 1;

              delay_us(1);

              FSO …

  • AD7765 DiffAmp max input signal

    I am about to use AD7765 and i am confused with max input signal level for differential amp.

    The datasheet on page 18 says :

    The common-mode input at each of the differential amplifier inputs (Pin VINA+ and Pin VINA−) can range from−0.5 V dc to

    2.2…

  • RE: AD7765 - at which moment converter performs processing. I want to synchronize the system with the DAC.

    Hi,

    May I know exactly what is your application and why do you need to synchronized DAC with the ADC? AD7765 has a /SYNC pin which allows the user to control the start of conversion/gathering samples from a known point in time. When this pin is low…