Need clarification on product

Question

I am using a thermocouple in my system. While designing the circuit I prefer the analog devices LTK001 cold junction compensator IC. In data sheet you have mentioned as LT1025 as a cold junction compensator and LTKA0x as amplifier, but another option LTK001 amplifier plus compensator is also mentioned. I would like to know the difference between LTK001, LT1025 and LTKA0x. 
 What is this three IC, how to use it and in which combination I should purchase? 
 If I am using LTK001 IC, do I need to connect LTKA0x amplifier also ? 
 
 Thanks, 
 Amal

ADIApproved · Accepted Answer

Hi apk ,

You can think of LTK001 as a special version of LT1025. They are both cold junction compensators, but the LTK001 is specially designed to be matched to a compatible version of the LTKA0x amplifier.

You can use the LTKA0x amplifier for both the LTK001, and LT1025, but you would see better accuracy because of better matching when using the LTKA0x with the LTK001.

To answer your last question, it would be best that you use the LTKA0x amplifier with the LTK001 IC. However, you can also use other amplifiers to match your LTK001, it would just be a matter of the accuracy you need for your design.

Regards,
Karlo

Partner Forums

Partner Libraries

Products Mentioned

Need clarification on product