??? 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 |
Topic | Author | Date |
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 |