您好，官网上有关AD7985的数据手册和信息您可以参考一下。
AD7985 数据手册和产品信息 | 亚德诺半导体
Dear Sir/Madam,
I am just studing to use your AD7985 with your datasheet page.19, Fig 27 CSB Mode, 3-Wire Without Busy Indicator Serial Interface Timing (SDI High) condition. Also I will be worked AD7985 with fix the procedure of conversion and acquition…
I have the AD7985 eval board and I am referring to the EVAL-AD7944_85_86EDZ manual (a pdf file got in the cd came with the board). I am trying to test the AD7985 with Beaglebone Black over SPI Interface. Few things are not clear.
1. Somewhere in the…
Hi, Vincent.
The 16-bit AD7985 was used together with a flexible sensor signal conditioning block which can be used for accurate smallsignal measurements in this reference circuit. The AD7985 has an input voltage range of 0-Vref (Vref can be externally…
This is the reference circuit about the AD8253 and AD7985.
There are differencial input ports in the AD8253 and I want to use this device for single input.
Then how can I connet the other input pin?
我用STM32来对AD7985进行控制，进行电压采集，使用的是最简单的三线式无繁忙指示。在输入端给3.3v的直流电压，但是采到的电压值都是些毫无规律且一直在变动，具体的程序是按照数据手册里的时序一步一步来的，我不知道是不是时钟或者延时什么的没有设置好，求帮帮忙，挺急的，网上也没什么资料，下面附上时序图和部分程序。
Hi Yake,
I have attached a list of some of the ADCs that fit your criteria of 2MSPS sampling rate or higher at resolution of 12bits or more.
You may also wanted to check the ADI website and do a parametric search (http://www.analog.com/ps/psthandler…
Hi Meir,
You may want to check the ADI website and do a parametric search to filter the product display base form your recommended specification.
www.analog.com/.../10169
Here are some ADCs that might help you start with, kindly see attched file.
SCK 是用户的控制器来发送的时钟信号，AD7985只是高阻输入引脚。
要确认这个问题，最好用示波器测量CNV, SCK, SDO波形，看一下。