High-accuracy digital temperature sensor

STMicroelectronics introduced a series of high-precision digital output temperature sensor. New series of products is particularly applicable to a broad range of low-power applications, electronic equipment, temperature measurement range from negative 55 degrees Celsius to 125 degrees Celsius is. This emphasis on cost-effective series of products can be directly STxx75 replacement and software compatible with industry-standard LM75, DS75 and TCN75A chip temperature sensor, but also improved the ST has been used for a number of existing cell phone inside the STLM20 Series analog temperature sensor. Standard 8-lead TSSOP and SO-8 package, the new series of digital sensor applied to device control applications, such as: processor through the I2C bus / SMBus read an accurate digital temperature data of the machine need to take action after the control applications; or when the local temperature of the system need to be taken when pre-set temperature alarm or interruption of the control measures applied. The adoption of a new series of products bandgap temperature sensor, a programmable built-in 9-12 of the sigma-delta ADC (ADC), are able to simulate the temperature reading signals into digital signals, resolution up to 0.0625 degrees. STTS75 is calibrated in the factory, no other external components. In negative 55 degrees Celsius to 125 degrees Celsius is within the scope of the sensor measurement accuracy plus or minus 3 degrees Celsius; in negative 25 degrees Celsius to 100 degrees Celsius is the scope, precision sensors plus or minus 2 degrees Celsius. Sensor is a new series of 2.7 to 5.5 V supply voltage伏低designed operating current consumption is very low, at 3.3V typical operating current of only 75 microamps. The turn-off in power mode, the standby current is very low, only 1 microampere maximum. The default setting power of the products can be used as an independent work of a thermostat, the temperature value and temperature regulation can be programmed hysteresis value. All hard disk drives with the device are the objectives of the new product applications, including desktop computers, servers and some set-top boxes, as well as medical equipment, industrial computer controller and LCD display backlighting. With more and more high-brightness display, the circuit faster and faster processing speed, heat-related devices have also increased, but these pieces of the package heat sink is continuously shrinking. This trend of development of consumer electronics and industrial electronic equipment thermal management system, a formidable challenge, only the strict monitoring of the temperature of integrated circuits and external ambient temperature, thereby preventing the circuit board overheating and equipment damage incidents. STTS75 series of sensors now in volume production, the use of SO-8 package and MSOP8 (TSSOP8), Order 1000 and above and is priced at 0.70 U.S. dollars. Sample for order.