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LMT90

現行

正極 +10.0mV/°C 增益類比輸出溫度感測器

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產品規格表

LMT90

現行
產品規格表 立即訂購

產品詳細資料

Local sensor accuracy (max) 4 Rating Catalog Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 10 Supply current (max) (µA) 130 Interface type Analog output Sensor gain (mV/°C) 10 Features Industry standard pinout
Local sensor accuracy (max) 4 Rating Catalog Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 10 Supply current (max) (µA) 130 Interface type Analog output Sensor gain (mV/°C) 10 Features Industry standard pinout
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • Industry-Standard Sensor Gain/Offset:
    • 10mV/°C, 500mV at 0°C
    • Drop-in functional equivalent to LM50C
  • LMT90 Temperature Accuracy:
    • ±3°C (Max) at 25°C
    • ±4°C (Max) over −40°C to +125°C
  • Operating supply range: 4.5V to 10V
  • Quiescent Current (Typ): 95µA
  • Available in Standard SOT23-3 package
  • Nonlinearity: ±0.8°C (Max)
  • DC Output Impedance: 2kΩ/4kΩ (typ/Max)
    • Enables driving large capacitive loads
  • Cost-Effective Alternative to Thermistors
  • Industry-Standard Sensor Gain/Offset:
    • 10mV/°C, 500mV at 0°C
    • Drop-in functional equivalent to LM50C
  • LMT90 Temperature Accuracy:
    • ±3°C (Max) at 25°C
    • ±4°C (Max) over −40°C to +125°C
  • Operating supply range: 4.5V to 10V
  • Quiescent Current (Typ): 95µA
  • Available in Standard SOT23-3 package
  • Nonlinearity: ±0.8°C (Max)
  • DC Output Impedance: 2kΩ/4kΩ (typ/Max)
    • Enables driving large capacitive loads
  • Cost-Effective Alternative to Thermistors

The LMT90 device is a cost-optimized precision analog temperature sensor developed as a linear alternative to discrete thermistors. This device can measure temperatures from -40°C to 125°C using a single positive supply. The output voltage of the device is linearly proportional to temperature (10mV/°C) and has a DC offset of 500mV at 0°C. The offset allows reading negative temperatures without the need for a negative supply. The output voltage of the LMT90 ranges from 100mV (at –40°C) to 1.75V (at 125°C), simplifying analog-to-digital converter (ADC) interfacing.

The LMT90 is a drop-in equivalent to LM50C and does not require any external calibration, trimming or software linearization leading to simplifying the circuitry requirements in a single supply environment. Due to low quiescent current of LMT90 (typically around 95µA), self-heating is limited to a very low 0.2°C (in still air). This device is suitable for HVAC, appliance, and consumer electronics applications. Trimming and calibration of the LMT90 at the wafer level supports long-term availability, low cost and consistent accuracy (±3°C at 25°C, ±4°C over temperature range).

The LMT90 device is a cost-optimized precision analog temperature sensor developed as a linear alternative to discrete thermistors. This device can measure temperatures from -40°C to 125°C using a single positive supply. The output voltage of the device is linearly proportional to temperature (10mV/°C) and has a DC offset of 500mV at 0°C. The offset allows reading negative temperatures without the need for a negative supply. The output voltage of the LMT90 ranges from 100mV (at –40°C) to 1.75V (at 125°C), simplifying analog-to-digital converter (ADC) interfacing.

The LMT90 is a drop-in equivalent to LM50C and does not require any external calibration, trimming or software linearization leading to simplifying the circuitry requirements in a single supply environment. Due to low quiescent current of LMT90 (typically around 95µA), self-heating is limited to a very low 0.2°C (in still air). This device is suitable for HVAC, appliance, and consumer electronics applications. Trimming and calibration of the LMT90 at the wafer level supports long-term availability, low cost and consistent accuracy (±3°C at 25°C, ±4°C over temperature range).
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類型 標題 日期
* Data sheet LMT90 Industry-Standard, ±3°C Accurate, Analog Centigrade (10mV/°C) Temperature Sensor in SOT-23 Package datasheet (Rev. C) PDF | HTML 2025年 5月 20日
Application note SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) 2019年 5月 8日
More literature Analog Temperature Sensors 2013年 4月 18日
User guide LMT90 User Guide 2013年 1月 31日

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開發板

LMT90EVM — LMT90EVM 溫度感測器評估模組

The Texas Instruments LMT90EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMT90 analog temperature sensor.

使用指南: PDF
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBZ) 3 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

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