MAX31820PAR是Maxim美信半导体公司的一款1-Wire器件产品，MAX31820PAR是1-Wire Parasite-Power, Ambient Temperature Sensor，本站介绍了MAX31820PAR的封装应用图解、特点和优点、功能等，并给出了与MAX31820PAR相关的Maxim元器件型号供参考。
MAX31820PAR - 1-Wire Parasite-Power, Ambient Temperature Sensor - 1-Wire器件 - Parasite-Powered Digital Temperature Sensor in TO-92 Package Minimizes Wiring and is Ideal for Measuring Ambient Temperature - 美信半导体
The MAX31820PAR ambient temperature sensor provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C operating range, the device has ±2.0°C accuracy.
The device communicates over a 1-Wire® bus that, by definition, requires only one data line (and ground) for communication with a central microprocessor. In addition, the device derives power directly from the data line (“parasite power”), eliminating the need for an external power supply. Requiring so few pins enables the device to be placed in a 3-pin TO-92 package. The form factor of this package allows the device to be placed above the board and thus measure the ambient temperature of a system, as opposed to the board temperature that a surface-mount package would measure.
Each MAX31820PAR has a unique 64-bit serial code, which allows multiple MAX31820PAR devices to function on the same 1-Wire bus. Therefore, it is simple to use one microprocessor to control many devices distributed over a large area.
