Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
05/14/04 17:36
Read: times


 
#70360 - RE: ThermoCouple K -> Digital
Responding to: ???'s previous message
I do not know the particular opamp, but to stay within 1-2 degrees you will need instrumentation grade op-amps in the 3 amplifier circuit and twisted pair from the TC to the amp or your line will kill you with noise. I have not been rummaging in high grade anlog for a while, but it would not surprise me if someone AD?, Maxim? has integread the 3 opamps on the same die.

anyhow, I found a 3 amp circuit for you.

http://www.maxim-ic.com/appnotes....umber/1069

I have no idea if the MAX4196 is low enough in noise for your app, but, at least, here is the circuit.

Erik

List of 21 messages in thread
TopicAuthorDate
ThermoCouple K -> Digital            01/01/70 00:00      
   RE: ThermoCouple K -> Digital            01/01/70 00:00      
   RE: ThermoCouple K -> Digital            01/01/70 00:00      
      RE: ThermoCouple K -> Digital            01/01/70 00:00      
         RE: ThermoCouple K -> Digital            01/01/70 00:00      
            RE: ThermoCouple K -> Digital            01/01/70 00:00      
            RE: ThermoCouple K -> Digital            01/01/70 00:00      
               RE: ThermoCouple K -> Digital            01/01/70 00:00      
                  RE: ThermoCouple K -> Digital            01/01/70 00:00      
                     RE: ThermoCouple K -> Digital            01/01/70 00:00      
                  RE: ThermoCouple K -> Digital            01/01/70 00:00      
                     RE: ThermoCouple K -> Digital            01/01/70 00:00      
               A 4. thermo connection is not needed!            01/01/70 00:00      
   RE: ThermoCouple K -> Digital            01/01/70 00:00      
   RE: ThermoCouple K -> Digital            01/01/70 00:00      
      RE: ThermoCouple K -> Digital            01/01/70 00:00      
   RE: ThermoCouple K -> Digital            01/01/70 00:00      
      RE: ThermoCouple K -> Digital            01/01/70 00:00      
   RE: ThermoCouple K -> Digital            01/01/70 00:00      
      RE: ThermoCouple K -> Digital            01/01/70 00:00      
      RE: ThermoCouple K -> Digital            01/01/70 00:00      

Back to Subject List