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TI新品TMP61的性能问题

Other Parts Discussed in Thread: TMP61

我注意到TI正在向市场投放PTC TMP61,号称是线性PTC,请问,这个TMP61能在80°C-90°C之间的温度分辨率做到±0.5°C甚至更小吗

  • 您好,它的精度是和偏置电路有关的,datasheet P18 有相关介绍,并且Figure 25给出了Vbias=2V以及Ibias=200uA的条件下测得的温度error情况。 实验证明,使用电流源偏执电路能达到最好精度。可以参考Figure 18采用个电流源偏置电路。