- 制造厂商：TI
- 产品类别：传感器
- 技术类目：温度传感器和控制 IC - 模拟温度传感器
- 功能描述：具有多个增益模拟输出选项的 ±1.5°C 温度传感器
- 点击这里打开及下载LM94021的技术文档资料
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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.
- 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
- Local sensor accuracy (Max) (+/- C)
- 1.5
- Operating temperature range (C)
- -50 to 150
- Supply voltage (Min) (V)
- 1.5
- Supply voltage (Max) (V)
- 5.5
- Supply current (Max) (uA)
- 12
- Interface type
- Analog output
- Sensor gain (mV/Deg C)
- -5.5 to -13.6
- Rating
- Catalog
- Features
- UL recognized
LM94021的完整型号有：LM94021BIMG/NOPB、LM94021BIMGX/NOPB，以下是这些产品的关键参数及官网采购报价：
LM94021BIMG/NOPB，工作温度：-50 to 150，封装：SC70 (DCK)-5，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM94021BIMG/NOPB的批量USD价格：.425（1000+）
LM94021BIMGX/NOPB，工作温度：-50 to 150，封装：SC70 (DCK)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM94021BIMGX/NOPB的批量USD价格：.354（1000+）
LM9402XEVM — 用于多增益模拟温度传感器的评估模块
The Texas Instruments LM9402xEVM evaluation module helps designers evaluate the operation and performance of the LM94021, LM94022, and LM94023 analog temperature sensors.
LM94021-2QUICK-CALC — LM94021 和 LM94022 电压至温度传输函数表
Design Aid
