Data Acquisition

Question: Pls. suggest a site for circuit diagrams using ad7710 / ad7712 for temp control, data acquisition?

(Posted by: Bala C on 2008-02-14 23:42:06)

Email me any circuit diagrams if possible. Basically, I want to know how the out put from the AD7710 or 7712 may be used: After conversion from serial to some format or the other...? Which chip(s)should be used any circuit diagrams for this? How can this output be taken periodically, into a program for graphing the voltage versus time? If this chip is on an interface board placed in the PCI slot of the computer, how can the VB program access it - how does it know in which slot the card is and which is the chip whose output has to be accessed? Thanks in advance for any tutorial sites or info or books that you could let me know of.

Posted by: Marianna on 2008-02-15, 06:34:28

Look at Figure 20/ 21 of this data sheet and replace what's called the strain gage with a bridge of thermocouples. ortodoxism.ro/ datasheets/ analogdevices/ 52907039AD7710_f.pdf (AD7712 works similarly). You can also copy figure 3 on this application note analog.com/ analog_root/ static/ techSupport/ designTools/ evaluationBoards/ downloads/ ad7712.pdf and connect your thermocouple bridge to SKT2, 3, 4