基于TMP100的具有 I2C/SMBus 接口的 ±1°C 温度传感器

　　描述

　　The TMP100 and TMP101 devices are digital temperature sensors ideal for negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistor replacement. The devices offer a typical accuracy of ±1°C without requiring calibration or external component signal conditioning. Device temperature sensors are highly linear and do not require complex calculations or look-up tables to derive the temperature. The on-chip, 12-bit ADC offers resolutions down to 0.0625°C. The devices are available in 6-Pin SOT-23 packages.

　　The TMP100 and TMP101 devices feature SMBus, Two-Wire, and I2C interface compatibility. The TMP100 device allows up to eight devices on one bus. The TMP101 device offers an SMBus Alert function with up to three devices per bus.

　　The TMP100 and TMP101 devices are ideal for extended temperature measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications.

　　The TMP100 and TMP101 devices are specified for operation over a temperature range of −55°C to 125°C.

　　特性

　　Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility

　　Resolution: 9 to 12 Bits, User-Selectable

　　Accuracy:

　　±1°C (Typical) from –55°C to 125°C

　　±2°C (Maximum) from –55°C to 125°C

　　Low Quiescent Current: 45-µA, 0.1-µA Standby

　　Wide Supply Range: 2.7 V to 5.5 V

　　TMP100 Features Two Address Pins

　　TMP101 Features One Address Pin and an ALERT Pin

　　6-Pin SOT-23 Package

　　相关料号推荐：TMP101NA/250

　　https://www.iczoom.com/product/k03-24390727-TMP101NA250.html

　　1.1 基本参数及引脚说明

　　1.基本参数

　　TMP100是德州仪器(TI)公司的一款数字温度传感器芯片。主要特点有：

　　1) 工作电压范围：2.7V~5.5V

　　2) 超低功耗：45μA (待机时0.1μA)

　　3) 接口方式：I2C二线串行接口

　　4) 可编程分辨率：9-Bits 到12-Bits

　　5) 操作频率：100 KHz /400KHz/3.4MHz

　　6) 精度：测量温度在-25℃~85℃时，为±2℃在-55℃~125℃时，为±3℃