产品详情

Local sensor accuracy (max) 1.5 Operating temperature range (°C) -50 to 150 Supply voltage (min) (V) 1.5 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -13.6, -10.9, -8.2, -5.5 Rating Catalog Features Selectable gain setting, UL recognized
Local sensor accuracy (max) 1.5 Operating temperature range (°C) -50 to 150 Supply voltage (min) (V) 1.5 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -13.6, -10.9, -8.2, -5.5 Rating Catalog Features Selectable gain setting, UL recognized
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • 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
  • 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

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.

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.

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LM94022-Q1 正在供货 具有多增益和 AB 类模拟输出的汽车级 ±1.5°C 温度传感器 Automotive qualified version
功能与比较器件相同且具有相同引脚
LM94021 正在供货 具有多个增益模拟输出选项的 ±1.5°C 温度传感器 Equivalent pin-compatible version with lower output source current capability (≤ 2µA)
LMT84-Q1 正在供货 汽车级、1.5V、10uA 模拟输出温度传感器 Fixed sensor gain (-5.5 mV/°C) with lower accuracy (±2.7°C) and similar pinout
LMT85-Q1 正在供货 汽车级、1.8V、10uA 模拟输出温度传感器 Fixed sensor gain (-8.2 mV/°C) with lower accuracy (±2.7°C) and similar pinout
LMT86-Q1 正在供货 汽车级、2.2V、10uA 模拟输出温度传感器 Fixed sensor gain (-10.9 mV/°C) with lower accuracy (±2.7°C) and similar pinout
LMT87-Q1 正在供货 具有 -13.6mV/°C 增益的汽车类 ±2.7°C 2.7V 至 5.5V 模拟输出温度传感器 Fixed sensor gain (-13.6 mV/°C) with lower accuracy (±2.7°C) and similar pinout

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类型 标题 下载最新的英语版本 日期
* 数据表 LM94022/-Q1 1.5-V, SC70, Multi-Gain Analog Temperature Sensor With Class-AB Output 数据表 (Rev. F) PDF | HTML 2015年 9月 29日
证书 UL Certification 20141125-E232195 Vol 1 Sec 7 2023年 11月 17日
EVM 用户指南 LM9402xEVM User's Guide 2013年 9月 12日
用户指南 WEBENCH® Sensor Designer Thermocouple Sensor Ver 1 PCB (unpopulated) User Guide 2012年 1月 27日
设计指南 LM94021 LM94022 LM94023 Design Aid (Rev. A) 2012年 1月 26日
白皮书 Temperature sensor solutions for low-voltage systems 2005年 5月 11日

设计和开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

评估板

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.

用户指南: PDF
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计算工具

LM94021-2QUICK-CALC — LM94021 和 LM94022 电压至温度传输函数表

计算工具

LM9403X-DESIGNAID-CALC — LM94021 LM94022 LM94023 辅助设计

Design Aid
参考设计

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设计指南: PDF
原理图: PDF
参考设计

TIDEP0043 — Acontis EtherCAT 主站协议栈参考设计

Acontis EC-Master EtherCAT Master 堆栈是一种可移植度非常高的软件堆栈,可在各种嵌入式平台上使用。EC-Master 支持高性能的 TI Sitara MPU,可提供先进的 EtherCAT Master 解决方案,客户可使用该解决方案来实施 EtherCAT 通信接口电路板、基于 EtherCAT 的 PLC 或运动控制应用。EC-Master 结构设计让用户无需计划额外的任务,因此即使在没有操作系统的平台(例如 AM335x 上支持的 TI Starterware)上也可以使用全部堆栈功能。这种架构结合高速以太网驱动器让用户能在 Sitara 平台上实施 (...)
设计指南: PDF
原理图: PDF
参考设计

TIDA-00018 — 可编程逻辑控制器 (PLC) 的温度传感器接口模块

TIDA-00018 参考设计使您可以使用 24 位 delta-sigma ADC 及热电偶和 RTD 等最常用的温度传感器更快速地开发高精度温度测量解决方案。设计指南针对传感器信号调节、热电偶冷端补偿、RTD 比例式测量技术、推荐的软件流量、传感器线性化、传感器诊断、瞬变保护、PCB 布局和其他设计注意事项,以便为工业应用实现高精度的可靠温度测量设计。温度传感器接口模块采用全隔离设计,这是小型传感器信号测量所必不可少的。此参考设计的核心是一个 24 位 delta-sigma ADC,它为直流感应应用提供高分辨率、高度集成、低噪声和低成本的完整传感器模拟前端 (AFE)。此 ADC (...)
设计指南: PDF
原理图: PDF
封装 引脚 下载
SOT-SC70 (DCK) 5 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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