Kuglestadt writes, "The sensing element of the LMT70 consists of stacked BJT base emitter junctions that are biased by a current source. The output of the sensing element is buffered by a precision amplifier whose class AB push-pull output stage can easily source and sink currents of up to 3 mA.
The amplifier output connects to an output switch that is turned on and off by the digital control input T_ON."
What is NOT clear to me is whether that ADC circuit can resolve a temperature change of 0.01 deg C in the course of a SLOW change in temperature T(t). In my application, a pulse of heat warms soil. Then T(t) arrives a few seconds later at the thermometer and it decays away for 0.5 hr or so. Thus I need sampling of T(t) of about 1 per s AND I want to ship the voltage readings to a microcontroller, which might be a yard away or more.
My initial questions to Bogdan Nicola were numbered 1-2238579220.
Charles KenKnight
<chaskenk@yahoo.com>