- App Note AN28 "Thermocouple Measurement" on the Linear technology web site https://www.linear.com
- App Note AN-369 "Thermocouple Signal Conditioning Using the AD594/AD595" on the Analog Dvices web site https://www.analog.com
- Maxim MAX6675 chip. Complete K-type thermocouple front end packaged with A/D converter. **broken link removed**
i suggest you to using MAX6675, cause this IC is output the temperature using SPI comunication. you don't need the ADC. and the K type thermocouple output 41uV/C not mV. for the voltage converter you can use voltage divider.