I am using AD7747 IC for capacitance measurement. I have seen the circuit using opamp for extending the range of AD7745/46 IC. Can same be applied for AD7747? If yes, What will be the new range for the circuit of AD7747 with extension circuit…
2. 测量电容范围不同，AD7747为17+/-4pf（当然可以根据外接电路扩展，见cn-0129），而AD7150 为10+0.5～4pf。
There is an updated software download available from the evaluation board page:
This is compatible with Windows 7.
find attached an excel sheet which contains a representation of the model for the CDC calculations.
this should allow you to get a better understanding of the CDC data and its representative capacitive value.
I hope this helps
this is same as AD7747 Differential Mode
The software available to download from the evaluation board page is compatible with Windows 7:
Please try this version of the software…
For this type of application you want to use one of the following devices. AD7745, AD7746, or AD7747 which are capacitive measuring devices. You can do a search for each of those part numbers on the analog.com website, or by using Google.
I need two capacitive input for my application in using AD7747 for grounded sensing. The AD7747 only has one input and I wander if I can use the AD7746 instead. However, I'm unable to shield my setup well enough for floating sensing using AD7746 which…