描述 Description

The STTS75 is a high-precision CMOS (digital) temperature sensor IC with a delta-sigma analog-to-digital (ADC) converter and an I2C-compatible serial digital interface. It is targeted for general applications such as personal computers, system thermal management, electronics equipment, and industrial controllers, and is packaged in the industry standard 8-lead MSOP(TSSOP) and SO8 packages.

The device contains a band gap temperature sensor and programmable 9- to 12-bit ADC which monitor and digitize the temperature to a resolution up to 0.0625 °C. The STTS75 is typically accurate to (±3 °C - max) over the full temperature measurement range of –55 °C to 125 °C with ±2 °C accuracy in the –25 °C to +100 °C range. At power-up, the STTS75 defaults to 9-bit resolution for software compatibility with the STLM75.

The STTS75 is specified for operating at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the supply current is typically (75 μA).

The onboard delta-sigma analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in °C; for Fahrenheit applications a lookup table or conversion routine is required.

The STTS75 is factory-calibrated and requires no external components to measure temperature.

特性 Features

? Measures temperatures from –55 °C to +125 °C (–67 °F to +257 °F)
?±0.5 °C (typ) accuracy
?±2 °C (max) accuracy from –25 °C to +100 °C
? Low operating current: 75 μA (typ)
? No external components required
? 2-wire I2C/SMBus-compatible serial interface
?Selectable serial bus address allows connection of up to eight devices on the same bus
? Thermometer resolution is user-configurable from 9 (default) to 12 bits (0.5 °C to 0.0625 °C)
? 9-bit conversion time is 45 ms (typ)
? Programmable temperature threshold and hysteresis set points
? Wide power supply range-operating voltage range: 2.7 V to 5.5 V
? Power saving one-shot temperature measurement
? Power-up defaults permit standalone operation as thermostat
? Shutdown mode to minimize power consumption
? Separate open drain output pin operates as an interrupt or comparator/thermostat output (dual purpose event pin)
? Packages:
?SO8
?MSOP8 (TSSOP8)

簡介

STTS75屬于傳感器變送器的溫度傳感器-模擬數(shù)字輸出。由制造生產(chǎn)的STTS75溫度傳感器 - 模擬和數(shù)字輸出模擬和數(shù)字輸出溫度傳感器可用于測量環(huán)境熱能量。特征包括傳感器類型、本地感測溫度、遠(yuǎn)程感測溫度、輸出類型、電源電壓和分辨率。傳感器類型為模擬本地/遠(yuǎn)程/紅外、模擬數(shù)字、本地/遠(yuǎn)程、數(shù)字本地/遠(yuǎn)程/紅外或內(nèi)部，感應(yīng)溫度范圍為 -55°C 至 200°C。