Hi,

I am planning to use AD7476 in my application.

I want to know the timing diagram of the sample and hold circuit used for this application.

ADC takes the value when it is sampled and holds for certain amount, can i know the timing diagram for the same…

时序，电压都对。但是sdata引脚输出的电压只有0.0几。我的是不是芯片坏了

I cannot get a the AD7476 in my circuit to produce and output code greater that 4080 Decimal.  All codes below this value are produced and within spec (see the INL graph below).  I do see the effects of large code transitions from a string of eight "1"s…

有没有大神知道AD7476模拟信号转数字信号的公式？

     在线等。。。。

Hi there,

Following on from the successful build and test of a single PmodAD1 : http://ez.analog.com/message/123360

I have modified the reference design to have two AD7476A HDL blocks and also included other necessary changes to route through a dma…

我给了16个时钟上电，然后循环读取数据。

我用的是stm32，并且时钟频率是50MHz，也就是说一个时钟周期20ns。

然而AD7476,依旧读不了数据，时序应该是满足的。

我用的是SPI通信,CS与SCLK都在读取时拉低了，但是SDATA一直没有数据，用的是CN0303接adxl001。CN0303的J4端口外接处理器的SPI。我测量电压时发下，CN0303上的CS自带电压，3.3V，请问我的AD7476坏了？还是由于什么原因导致没有数据。（CN0303已接5V电源，ADXL001与CN0303已确保连接正确，程序仿真一步一步读取不行，直接运行也读取不了）。

Hi,

    I am trying to use a PMOD AD1 from digilent, which has 2 AD7476s. I am using it with a Zedboard and need some kind of basic reference code for interfacing the ADC. I have posted my code below. I can see it converting the data, on the DataA pin digital…

最近对AD7476和AD7476A进行了关注，想问一下这两款芯片最大的不同点在哪里。

我对这两款芯片的看法是

AD7476A提供了KS-6这样更小的封装，以及71 dB SNR at 100 kHz的表现。但是我还是希望得到专家的解答，即这两款芯片有何差别？非常感谢！

Hello, I am trying to understand a board, that contains an AD7476ARTZ. My question is certainly very low level, I am a physicist not an engineer, so I hope you don't mind my ignorance.

The problem is, that the digital output seems to be about twice…