LM94021 - 具有多个增益模拟输出选项的 ±1.5°C 温度传感器

LM94021是TI德州仪器公司的一款本地温度传感器产品，LM94021是具有多个增益模拟输出选项的 ±1.5°C 温度传感器，本站介绍了LM94021的封装应用图解、特点和优点、功能等，并给出了与LM94021相关的TI元器件型号供参考。

LM94021 - 具有多个增益模拟输出选项的 ±1.5°C 温度传感器 - 本地温度传感器 - 温度传感器和控制IC - 德州仪器

产品描述

The LM94021 is a precision analog output CMOS integrated-circuit temperature sensor that operates at a supply voltage as low as 1.5V. While operating over the wide temperature range of −50°C to +150°C, the LM94021 delivers an output voltage that is inversely proportional to measured temperature. The LM94021's low supply current makes it ideal for battery-powered systems as well as general temperature sensing applications.

Two logic inputs, Gain Select 1 (GS1) and Gain Select 0 (GS0), select the gain of the temperature-to-voltage output transfer function. Four slopes are selectable: −5.5 mV/°C, −8.2 mV/°C, −10.9 mV/°C, and −13.6 mV/°C. In the lowest gain configuration (GS1 and GS0 both tied low), the LM94021 can operate with a 1.5V supply while measuring temperature over the full −50°C to +150°C operating range. Tying both inputs high causes the transfer function to have the largest gain of −13.6 mV/°C for maximum temperature sensitivity. The gain-select inputs can be tied directly to VDD or Ground without any pull-up or pull-down resistors, reducing component count and board area. These inputs can also be driven by logic signals allowing the system to optimize the gain during operation or system diagnostics.

产品特性

LM94021Q is AEC-Q100 Grade 0 Qualified and is Manufactured on an Automotive Grade Flow
Low 1.5V Operation
Four Selectable Gains
Very Accurate Over Wide Temperature Range of −50°C to +150°C
Low Quiescent Current
Output is Short-Circuit Protected
Extremely Small SC70 Package
Footprint Compatible with the Industry-Standard LM20 Temperature Sensor
UL Recognized Component

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