Quad-Channel Analog Thermocouple Amplifier / Conditioner
(K-Type or J-Type, based on AD8494/AD8495)
Description:
With temperature data acquisition and conditioning needs in mind, we introduce the SEN-30103, an analog thermocouple amplifier board based on the AD849x series from Analog Devices! The AD849X series is an improved linup based on the popular AD595 and similar devices from Analog. This quad-channel thermocouple board converts the very low voltage signal from a thermocouple to a highly-linear, 0.005V/°C output with either 0V or 1.245V offset (both configurations stocked) while removing unwanted noise from the signal. Many supply and output configurations are available with this board, though the PCB was designed with Arduino in mind. Specifically, the output header will plug directly into a standard Arduino Uno or Mega, with a pin-for-pin match for power supply, ground and analog outputs. With a 5V Arduino, temperatures from 0°C to 1,000°C are possible with the 0V offset board and -249°C to 750°C with the 1.245V offset board. If using a 3.3V microcontroller (Due, etc), the board must be supplied with no more than 3.3V to avoid damaging the microcontroller. External references, including application notes, pinouts and schematics can be found by visiting the product page on our website. It is also possible to supply the board with higher voltages to allow temperature measurement over the entire operating range of the K-Type and J-Type thermocouples, allowing use with more capable data acquisition equipment. Additional information is available upon request, including help with your application!
Applications:
- Automotive data acquisition (exhaust, coolant, brakes, etc)
- Industrial instrumentation
- Oven temperature measurements and control
- Home brew setups
- Other hobby projects!
Features:
- K-Type or J-Type amplifiers get the most out of your analog application
- Wide temperature range dependent on supply and offset - options to 1,000°C for 5V Arduinos
- Ttc = (Vout / 0.005)°C (0V offset version)
- Ttc = ((Vout – 1.245) / 0.005)°C (1.245V offset)
- Analog output with high cutoff frequency signal conditioning
- Measure rapid changes in temperature, such as exhaust temp during a drag race, that most sensors can’t detect
- Analog filtering to remove higher frequency EMI from signal is included in the design (both differential and common mode filtering)
- Supply voltage range: 3.3V - 10V+
- See AD849x datasheet for linearity and correction tables
- Mounting holes for 4-40 sized screws (see Related Products below)
- Screw terminals sized for PH0 phillips screw driver
- We offer volume pricing and can custom assemble boards if you need something special - High tolerance parts or the AD9496/AD8497, for instance - just contact us!
- Purchase includes one SEN-30103 Quad Channel Thermocouple Amplifier Board with screw-terminal connectors soldered on. A short segment of 0.1" breakaway header is included (minimum 10 pins)
- Designed, manufactured, tested and shipped from the USA