LM94022 - 具有多增益和 AB 类模拟输出的 ±1.5°C 温度传感器

LM94022是TI德州仪器公司的一款本地温度传感器产品，LM94022是具有多增益和 AB 类模拟输出的 ±1.5°C 温度传感器，本站介绍了LM94022的封装应用图解、特点和优点、功能等，并给出了与LM94022相关的TI元器件型号供参考。

LM94022 - 具有多增益和 AB 类模拟输出的 ±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

产品特性

LM94022/-Q1 is AEC-Q100 Grade 0 qualified and is Manufactured on an Automotive Grade Flow
Low 1.5-V to 5.5-V Operation With Low 5.4-µA Supply Current
Push-Pull Output With ±50-µA Source Current Capability
Four Selectable Gains
Very Accurate Over Wide Temperature Range of −50°C to +150°C:
- ±1.5ºC Temperature Accuracy for 20ºC to 40ºC Range
- ±1.8ºC Temperature Accuracy for –50ºC to 70ºC Range
- ±2.1ºC Temperature Accuracy for –50ºC to 90ºC Range
- ±2.7ºC Temperature Accuracy for –50ºC to 150ºC Range
Output is Short-Circuit Protected
Extremely Small SC70 Package
For the Similar Functionality in a TO-92 Package, See LMT84, LMT85, LMT86, or LMT87
Footprint Compatible With the Industry-Standard LM20 Temperature Sensor

产品应用

Automotive
Cell Phones
Wireless Transceivers
Battery Management
Disk Drives
Games
Appliances

产品说明

The LM94022/-Q1 device is a precision analog output CMOS integrated-circuit temperature sensor with selectable linear negative temperature coefficient (NTC). A class-AB output structure gives the LM94022/-Q1 strong output source and sink current capability for driving heavy transient loads such as that presented by the input of a sample-and-hold analog-to-digital converter. The low 5.4-µA supply current and 1.5-V operating voltage of the LM94022/-Q1 make it ideal for battery-powered systems as well as general temperature-sensing applications.

The Gain Select 1 (GS1) and Gain Select 0 (GS0) logic inputs select one of four gains for the temperature-to-voltage output transfer function: −5.5 mV/°C, −8.2 mV/°C, −10.9 mV/°C, and −13.6 mV/°C. Selecting –5.5 mV/°C (GS1 and GS0 both tied low), allows the LM94022/-Q1 to operate down to 1.5-V supply while measuring temperature over the full range of −50°C to +150°C. Maximum temperature sensitivity, –13.6 mV/°C, is selected when GS1 and GS0 are both tied high. The gain-select inputs can be tied directly to VDD or Ground without any pullup or pulldown 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.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM94022	SC70 (5)	2.00 mm × 1.25 mm
LM94022-Q1	SC70 (5)	2.00 mm × 1.25 mm

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