1778 Datasheet by Adafruit Industries LLC

Analog Output K-Type Thermocouple
Amplifier - AD8495 Breakout
PRODUCT ID: 1778
http://www.adafruit.com/products/1778 10/7/2015
-DESCRIPTION
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 + TLVH431 1.25V 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)
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Rolls AD8495 Datasheet Sensing Accuracy Range: 1 i"C around room temperature, : 2"C for 725%: re +400°C Sensing Temperamre Max: 400"C Sensing Temperamre Min: —ZS"C 20mm x 16mm x 2mm / 0.8" x 0.6" x 0.08" Weight: 1.19
Technical Details
AD8495 Datasheet
Sensing Accuracy Range: ± 1°C around room temperature, ± 2°C for 25°C to +400°C
Supply Voltage: 3-18VDC
Dimensions:
20mm x 16mm x 2mm / 0.8" x 0.6" x 0.08"
Weight: 1.1g