AN2648提催分辨率的模拟温度传感器

AN2648提催分辨率的模拟温度传感器

AN2648
Application note

Increasing the resolution of analog temperature sensors

Introduction
For a recent trade show, a demonstration board was required to display ST's new low-cost
temperature sensor, the STLM20. The idea was to connect it to a basic microcontroller with
on-board analog-to-digital converter (ADC) and display the temperature on seven-segment
LEDs. Any user would be able to affect the temperature by applying his finger directly to the
sensor and then watch the display change as a result.
The goal was to keep things simple and us