Temperature Sensors

The following is an overview of several types of different temperature sensors including digital and analog. With the connection to an arduino board, the temperature reading can be relayed through software where a range of values can produce varying output.

Digital Temperature Sensor Breakout - TMP102

Description: This is a breakout board for the incredibly small TMP102 digital temperature sensor. The TMP102 is a digital sensor (I2C a.k.a. TWI), has a resolution of 0.0625°C, and is accurate up to 0.5°C. The sensor requires very low-current, and is loaded with features.

Communication with the TMP102 is achieved through a two-wire serial interface. There is no on-board voltage regulator, so supplied voltage should be between 1.4 to 3.6VDC. Filtering capacitors and pull-up resistors are included as shown.

Features:

• 12-bit, 0.0625°C resolution
• Accuracy: 0.5°C (-25°C to +85°C)
• Low quiescent current
• 10µA Active (max)
• 1µA Shutdown (max)
• 1.4V to 3.6VDC supply range
• Two-wire serial interface

A592 Temperature Probe

This convenient analog temperature sensor used in the Applied Sensors Kit has attached wire leads, a submersible tip, and a performance range of -13 to +221° F (-25 to + 105° C).

Infrared Thermometer - MLX90614

Description: Melexis' MLX90614ESF-BAA is an infrared thermometer designed for non-contact temperature sensing. An internal 17-bit ADC and a powerful DSP contribute to the MLX90614's high accuracy and resolution. It has a huge number of applications including body temperature measurment and movement detection.

The MLX90614 provides two methods of output: PWM and SMBus (i.e. TWI, I²C). The 10-bit PWM output provides a resolution of 0.14°C, while the TWI interface has a resolution of 0.02°C. The MLX90614 is factory calibrated in wide temperature ranges: -40 to 85°C for the ambient temperature and -70 to 382.2°C for the object temperature. The measured value is the average temperature of all objects in the Field Of View of the sensor. The MLX90614 offers a standard accuracy of 0.5°C around room temperatures.

This devices comes in an industry standard TO-39 package. We're carrying the 3V version of this sensor.

Features:

• Small size, low cost
  
• Easy to integrate
  
• Factory calibrated in wide temperature range:
  
• -40 to +85°C for sensor temperature
  
• -70 to +380°C for object temperature
  
• SMBus compatible digital interface
  
• Customizable PWM output for continuous reading
• High accuracy of 0.5°C over wide temperature range (0 to +50°C for both Ta and To)
• Measurement resolution of 0.02°C
  
• Single and dual zone versions
• Simple adaptation for 8 to 16V applications
  
• Power saving mode
  
• Different package options for applications and measurements versatility
  
• Automotive grade