器件名称:
LM50
功能描述:
SOT-23 Single-Supply Centigrade Temperature Sensor
文件大小:
176.25KB 共7页
简 介:
LM50 SOT-23 Single-Supply Centigrade Temperature Sensor July 1999 LM50 SOT-23 Single-Supply Centigrade Temperature Sensor General Description The LM50 is a precision integrated-circuit temperature sensor that can sense a 40C to +125C temperature range using a single positive supply. The LM50’s output voltage is linearly proportional to Celsius (Centigrade) temperature (+10 mV/C) and has a DC offset of +500 mV. The offset allows reading negative temperatures without the need for a negative supply. The ideal output voltage of the LM50 ranges from +100 mV to +1.75V for a 40C to +125C temperature range. The LM50 does not require any external calibration or trimming to provide accuracies of ± 3C at room temperature and ± 4C over the full 40C to +125C temperature range. Trimming and calibration of the LM50 at the wafer level assure low cost and high accuracy. The LM50’s linear output, +500 mV offset, and factory calibration simplify circuitry required in a single supply environment where reading negative temperatures is required. Because the LM50’s quiescent current is less than 130 A, self-heating is limited to a very low 0.2C in still air. Applications n n n n n n n n n Computers Disk Drives Battery Management Automotive FAX Machines Printers Portable Medical Instruments HVAC Power Supply Modules Features n n n n n n n n n n Calibrated directly in degree Celsius (Centigrade) Linear + 10.0 mV/C scale factor ± 2C accuracy guaranteed at +25C Specified for full 40 to +125C range ……
