Analog Output K-Type Thermocouple Amplifier - AD8495 Breakout

Rating:

100% of 100

SKU: ADA1778 Brand: Adafruit

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

$21.25 AUD, inc GST

$19.32 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 19th of Nov

Quantity Discounts:

10-25 $18.55 (exc GST)
25+ $17.96 (exc GST)

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). 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
EagleCAD PCB files on GitHub
Fritzing object in Adafruit Fritzing Library

Dimensions:

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

Product Comments

Start the conversation

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!