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# Analog Output K-Type Thermocouple Amplifier - AD8495 Breakout

**Type:** Product page · **SKU:** ADA1778 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/analog-output-k-type-thermocouple-amplifier-ad8495-breakout.html ([markdown](https://core-electronics.com.au/analog-output-k-type-thermocouple-amplifier-ad8495-breakout.html.md))

Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. Adafruit have a couple digital thermocouple amplifiers in the shop already...

## Pricing

- **Price:** $20.60 (inc GST) — $18.73 AUD, exc GST
- **Quantity discounts:** 10+ $18.16 (exc GST) · 50+ $17.79 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 03 and Sep 07.

## How to buy

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## Description

Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. Adafruit have a couple digital thermocouple amplifiers in the shop already from Maxim. Now Adafruit are 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, Adafruit 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 Adafruit's 1m K-type thermocouple (not included)](https://core-electronics.com.au/thermocouple-type-k-glass-braid-insulated-k.html). 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

- 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
- [AD8495 Datasheet](https://core-electronics.com.au/attachments/localcontent/AD8494_8495_8496_8497_4956226c3a7.pdf)
- [EagleCAD PCB files on GitHub](https://github.com/adafruit/Adafruit-AD8495-Breakout-PCB)
- [Fritzing object in Adafruit Fritzing Library](https://github.com/adafruit/Fritzing-Library)

Dimensions:

- 20mm x 16mm x 2mm / 0.8" x 0.6" x 0.08"
- Weight: 1.1g

 ![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/7/1778-00.jpg)