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SI7053-A20 Datasheet(PDF) 11 Page - Silicon Laboratories |
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SI7053-A20 Datasheet(HTML) 11 Page - Silicon Laboratories |
11 / 26 page Si7050/3/4/5-A20 Rev. 1.0 11 4. Functional Description Figure 3. Si705x Block Diagram The Si705x Digital Temperature Sensors offer industry-leading low power consumption and high accuracy across the entire operating voltage and temperature range. These monolithic CMOS ICs feature a band-gap temperature sensor element, an analog-to-digital converter with up to 14-bit resolution, signal processing, calibration data, and an I2C interface. The patented use of novel signal processing and analog design enables the sensors to maintain their accuracy over a wide temperature and voltage range, while consuming very little current. The temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes required. The Si705x devices are available in a 3x3 mm DFN package, and the industry-standard I2C interface can operate at up to 400 kHz. Requiring just 195nA of average current when sampled once per second, the Si705x can operate for several years with just a single coin cell battery. The Si705x devices offer an accurate, low-power, factory-calibrated digital solution ideal for measuring temperature in applications ranging from HVAC/R and asset tracking to industrial and consumer platforms. ADC GND SCL Si705x Temp Sensor SDA Vdd I2C Interface 1.25V Ref Voltage Regulator Calibration Memory Control Logic |
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