MCP6V01RD-TCPL: Thermocouple Interface

Summary

The MCP6V01 Thermocouple Auto-Zeroed Reference Design demonstrates how to measure electromotive force (EMF) voltage at the cold junction of the thermocouple in order to accurately measure temperature at the hot junction. This can be done by using the MCP6V01 auto-zeroed op amp because of its ultra low offset voltage (VOS) and high common mode rejection ratio (CMRR).

Features:

Uses a MCP6V01 difference amplifier as an analog sensor conditioning circuit
Uses the K-type thermocouple to sense temperature
Temperature range is from -100°C to +1000°C
Uses the MCP9800 Temperature Sensor for cold junction compensation
Uses the USB interface to transfer data to PC
14-Bit Resolution, 10-Bit ADC
Test points for bench work

Specifications

Manufacturer	Microchip Technology
Category	Sensor Solutions
Sub-Category	Temperature Sensing
Eval Board Part Number	MCP6V01RD-TCPL-ND
Eval Board Supplier	Microchip Technology
Eval Board	Board not Stocked
Purpose	Thermocouple Interface
Sensing Method	Thermocouple
Accuracy
Sensing Range	-100°C ~ 1000°C
Features	Auto-Zeroed USB Interface
Design Author	Microchip Technology
Main I.C. Base Part	MCP6V01 MCP9800
Component Count + Extras	38 + 13
Date Created By Author	2008-01
Date Added To Library	2012-06