Overview
The MCP9700 Thermistor Demo Board contains the analog circuitry to measure temperature. It uses BC Components’ 232264055103 NTC thermistor to convert temperature to resistance. The thermistor is placed in a voltage divider which converts resistance to voltage. This voltage is filtered and placed at the MCP6S22 Programmable Gain Amplifier’s (PGA) CH0 input. The PGA gains and buffers the thermistor.In addition, the board includes the MCP9700 Linear Active Thermistor. The MCP9700 outputs voltage proportional to temperature. A PIC18F2550 is used to both measure the voltage output of the MCP9700 and the MCP6S22 using an integrated 10-bit Analog to Digital Converter and communicate to a PC via USB interface.Temperature can be datalogged using Microchip Thermal Management Software Graphical User Interface (GUI).
- MCP9700 Temperature Sensor
- Thermistor Solution with adjustable range
- PC interface via USB
- Thermal Management Graphical User Interface
The MCP9700 Thermistor Demo Board contains the analog circuitry to measure temperature. It uses BC Components’ 232264055103 NTC thermistor to convert temperature to resistance. The thermistor is placed in a voltage divider which converts resistance to voltage. This voltage is filtered and placed at the MCP6S22 Programmable Gain Amplifier’s (PGA) CH0 input. The PGA gains and buffers the thermistor.In addition, the board includes the MCP9700 Linear Active Thermistor. The MCP9700 outputs voltage proportional to temperature. A PIC18F2550 is used to both measure the voltage output of the MCP9700 and the MCP6S22 using an integrated 10-bit Analog to Digital Converter and communicate to a PC via USB interface.Temperature can be datalogged using Microchip Thermal Management Software Graphical User Interface (GUI).
Documentation
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| Thermal Management Utility (v1.6.2) | Software Libraries and Firmware | Download | ||
| IC Temperature Sensor Accuracy Compensation with a PIC Microcontroller | Application Notes | Link | Download | |
| MCP9700 Thermistor Demo Board User's Guide | User Guide | Download | ||
| MCP9700 Thermistor Demo Board Gerbers | Board Design Files | Download | ||
| MCP9700 Thermistor Demo Board Firmware | Software Libraries and Firmware | Download | ||
| Interfacing a MCP9700 Analog Temperature Sensor to a PICmicro Microcontroller | Application Notes | Link | Download | |
| Thermistor Temperature Sensing with MCP6SX2 PGAs | Application Notes | Link | Download | |
| Single-Ended, Rail-to-Rail I/O, Low-Gain PGA | Data Sheets | Download | ||
| Inductively Coupled Thermistor | Application Notes | Link | Download |