The AD7768/AD7768-4 MCLK can be applied by using one of the three different options that are available to the user. The purpose of this document is to further explain these three options and how they are configured. The three options are: external CMOS…
you would need a driver to connect the electrodes to AD7768 and the high impedance electrodes cannot be wired directly in to AD7768
The AD7768/AD7768-4 outputs data as a master, meaning that the device continuously streams data and it is the user's task to read the data as it is output. Therefore the microcontroller that interfaces to the data output lines must be configured as…
There are screw terminal blocks fitted on the boards.
As you know, enable the CNV pin on the SAR ADC, it can control when it begin to capture signal accurately. But for AD7768 or other sigma detal ADC, Can it do this? If yes, how to do it?
1. 用示波器同时抓/DRDY, /CS, SCLK, DOUT的波形看，是否每次读数都在两个/DRDY脉冲之间 ？
2. 配置完寄存器后，通过/START产生/sync_out脉冲接/sync_in 或直接给/sync_in脉冲。
/SYNC_IN receives the synchronous signal from SYNC_OUT or from the main controller. SYNC_IN enables synchronization of multiple AD7768-1…
There are a number of factors to be considered here:
There are many amplifiers suitable to drive the AD7768/AD7768-4. Choosing the most suitable amp can be a difficult task, especially when there are constraints on the system power. In order to achieve the lowest power and highest accuracy in a data acquisition…
Recovered the answer below.
If you are using a single DOUT then you should also use pin 21 (DOUT6) on the AD7768.
I am wondering if anybody already implemented a linux iio driver for the ad7768 that uses serial audio interface (sai) instead of a fpga.
To me it looks like - at least for various NXP SoC types - this would be a reasonable approach.
Does anyone have…