产品概述
描述
The LM134/LM234/LM334 are 3-terminal adjustable current sources characterized by:
The current is determined by an external resistor without requiring other external components.
Reverse voltages of up to 20V will only draw a current of several microamperes. This enables the circuit to operate as a rectifier and as a source of current in a.c. applications.
For the LM134/LM234/LM334, the voltage on the control pin is 64mV at +25°C and is directly proportional to the absolute temperature (°K). The simplest external resistor connection generates a current with approximately 0.33%/°C temperature dependence. Zero drift can be obtained by adding an additional resistor and a diode to the external circuit.
所有功能
Operates from 1V to 40V
Programmable from 1µA to 10mA
0.02%/V current regulation
±3% initial accuracy
意法半导体的温度传感器产品系列包括模拟和数字温度传感器IC。由于具有精度与功耗等特点,两种类型的传感器均适用于各种应用,例如工业产品、消费级产品、便携式设备、家用电器、以及计算机市场。
模拟温度传感器的特点:低功耗、线性度好、在-55至+130°C(高200 °C)的非连续温度范围内工作时的误差±0.5ºC。
数字温度传感器的功耗低至20 µA,分辨率12位,能够以数字化形式显示温度值(分辨率达0.0625℃),在-55至+125℃工作范围内保持精度。
附加特性包括:具有可选地址(多8个)I2C/SMBus输出,节能式一次性温度读取,面向中断或恒温器/比较器功能的专用引脚,以及具有迟滞的可编程阈值。我们的数字传感器经过工厂校准,无需外部组件便可测量温度。
STTS系列的板载delta-sigma模数转换器(ADC)针对服务器、台式电脑、移动个人计算平台(包括笔记本电脑)、以及各种工业应用中的DRAM DIMM模块。
意法半导体的温度传感器IC采用多种封装,从插入式封装(如TO-92)到小的6引线UDFN封装(2 x 2 x 0.5 mm),适用于环境和设备。