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Adafruit Analog Output K-Type Thermocouple Amplifier - AD8495 Breakout

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  • Adafruit
  • EXP-R15-458
  • 1778
  • 0
  • US
  • 85340019
  • 0.006
Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation... mehr

Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. We have a couple digital thermocouple amplifiers in the shop already from Maxim. Now we're happy to introduce an excellent analog-output amplifier. This is a very simple sensor to use, and if your microcontroller has analog input capability, you'll be ready to go really fast!

The AD8495 K-type thermocouple amplifier from Analog Devices is so easy to use, we documented the whole thing on the back of the tiny PCB. Power the board with 3-18VDC and measure the output voltage on the OUT pin. You can easily convert the voltage to temperature with the following equation: Temperature = (Vout - 1.25) / 0.005 V. So for example, if the voltage is 1.5VDC, the temperature is (1.5 - 1.25) / 0.005 = 50°C

Each order comes with a 2 pin terminal block (for connecting to the thermocouple), a fully assembled PCB with the AD8495 + TLVH125 precision voltage reference, and pin header (to plug into any breadboard or perfboard). Goes great with our 1m K-type thermocouple (not included). Not for use with any other kind of thermocouple, K type only!
  • Works with any K type thermocouple
  • Will not work with any other kind of thermocouple other than K type
  • Easy to use analog output
  • Temp range with 5V power: -250°C to +750°C output (0 to 5VDC)
  • Temp range with 3.3V power: -250°C to +410°C output (0 to 3.3VDC)

Technical Details:
  • AD8495 Datasheet
  • Sensing Accuracy Range: ± 1°C around room temperature, ± 2°C for −25°C to +400°C
  • Sensing Temperature Max: 400°C
  • Sensing Temperature Min: -25°C
  • Supply Voltage: 3-18VDC
  • Dimensions:
    • 20mm x 16mm x 2mm / 0.8" x 0.6" x 0.08"
    • Weight: 1.1g
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