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LMT90DBZT

Positive +10.0mV/°C Gain Analog Output Temperature Sensor

Packaging

Package | PIN: DBZ | 3
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $0.73
10-24 $0.65
25-99 $0.60
100-249 $0.51
250-499 $0.47
500-749 $0.39
750-999 $0.31
1000+ $0.28

Features

  • Cost-Effective Alternative to Thermistors
  • Calibrated Directly in Degree Celsius (Centigrade)
  • Linear + 10.0 mV/°C Scale Factor
  • ±3°C Accuracy Guaranteed at 25°C
  • Specified for Full −40° to 125°C range
  • Suitable for Remote Applications
  • Operates from 4.5 V to 10 V
  • Less than 130-µA Current Drain
  • Low Self-heating, Less Than 0.2°C in Still Air
  • Non-linearity Less Than 0.8°C Over Temp

Texas Instruments  LMT90DBZT

The LMT90 device is a precision integrated-circuit temperature sensor that can sense a −40°C to +125°C temperature range using a single positive supply. The output voltage of LMT90 is linearly proportional to Celsius (Centigrade) temperature (10 mV/°C) and has a DC offset of 500 mV. The offset allows reading negative temperatures without the need for a negative supply. The ideal output voltage of the LMT90 ranges from 100 mV to 1.75 V for a −40°C to 125°C temperature range. The LMT90 does not require any external calibration or trimming to provide accuracies of ±3°C at room temperature and ±4°C over the full −40°C to +125°C temperature range. Trimming and calibration of the LMT90 at the wafer level assure low cost and high accuracy. The linear output, 500-mV offset, and factory calibration of LMT90 simplify circuitry required in a single-supply environment where reading negative temperatures is required. The LMT90’s quiescent current is less than 130 µA, thus self-heating is limited to a very low 0.2°C in still air.

The LMT90 is a cost-competitive alternative to thermistors.