DAQ on a Stick Renesas Thermocouple


The DAQ on a Stick Renesas Thermocouple is one of a series of reference designs highlighting Renesas’ precision products with different microcontrollers. This reference design is a self-contained demo showing a complete signal chain solution using Renesas precision parts and a Renesas microcontroller. The complete reference design is conveniently housed in a USB stick form factor. This compact design draws power through the USB port and uses a graphical user interface (GUI) to display the real-time temperature. The image to the right shows the data acquisition (DAQ) on a stick reference design.

The image below shows a simplified schematic of the thermocouple design. The design uses Renesas’ ISL28134 chopper amplifier, ISL22317 precision digitally controlled potentiometer (DCP), ISL21010 4.096V voltage reference, ISL21010 3.3V voltage reference, the ISL26102 24-bit Delta-Sigma converter, and the R5F10JBC (RL78/G1C) microcontroller.


  • Self-contained demo platform
  • 24-bit ADC with programmable sample rate
  • Zero-drift amplifiers
  • Real-time graphing on GUI
  • Within accuracy of K-Type thermocouples above 0 °C

Software and Tools

The installation application includes the following items:

  • GUI software
  • Desktop shortcut for easy access
  • Application note and schematics

Thermocouple Reference Design

DAQ on a Stick with Thermocouple


Chopper Amplifier

Digitally Controlled Potentiometer

4.096V Voltage Reference

3.3V Voltage Reference

24-bit Delta-Sigma Converter

(RL78/G1C) Microcontroller

User Guide

RTKA-TCSTKEV1Z User’s Manual
RTKA-TCSTKEV1Z Evaluation Board User’s Manual
PDF 2019年6月5日 530 KB


ISL21010 Datasheet
Micropower Voltage Reference
PDF 2019年4月19日 3.43 MB
ISL22317 Datasheet
Low Noise, Low Power, I2C® Bus, 128 Taps
PDF 2020年2月19日 917 KB
ISL26102, ISL26104 Datasheet
Low-Noise 24-bit Delta SIgma ADC
PDF 2018年7月19日 1.31 MB
ISL28134 Datasheet
5V Ultra Low Noise, Auto-Zero Rail-to-Rail Precision Op Amp
PDF 2020年3月12日 1.78 MB
RL78/G1C Data Sheet
PDF 2016年9月20日 1.49 MB

RTKA-TCSTKEV1Z Software Installer
Software installer for the DAQ on a Stick Renesas Thermocouple
EXE 2019年7月13日 14.66 MB

WEEE Questionnaire: The WEEE Return Questionnaire is intended for the return of EEEs supplied by Renesas Electronics Europe to its customers in the European Union only.

Disclaimer: THIS MATERIAL IS PROVIDED “AS-IS” FOR EVALUATION PURPOSES ONLY. RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (collectively, “Renesas”) DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Renesas provides evaluation platforms and design proposals to help our customers to develop products. However, factors beyond Renesas' control, including without limitation, component variations, temperature changes and PCB layout, could significantly affect the product performance. It is the user’s responsibility to verify the actual circuit performance.