Temperature coefficient error

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Figure 3: Gain error due to different temperature coefficients between external and internal

resistances

Figure 3 shows that the gain is higher at high temperatures and lower at low temperatures.

It is important to make sure Rsi are as low as possible to limit the error on the gain.

Consequently, it is better to choose a TSC product which has the closest gain for the

objective required. For example, do not use a 100 V/V product, if you want to obtain a gain

of 22 V/V. In this case, choose a product with a gain of 25 V/V.