MCP9700DM-TH1 Microchip Technology, MCP9700DM-TH1 Datasheet - Page 9

• Manufacturer Part Number: MCP9700DM-TH1
• Description: BOARD DEMO THERMISTOR MCP9700
• Manufacturer: Microchip Technology

Specifications of MCP9700DM-TH1

• Sensor Type: Temperature
• Sensing Range: -40°C ~ 125°C
• Interface: Analog
• Sensitivity: ±1°C
• Voltage - Supply: 2.3 V ~ 5.5 V
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP6S22, MCP9700
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.1
1.2
1.3
© 2008 Microchip Technology Inc.
INTRODUCTION
WHAT IS THE MCP9700 THERMISTOR DEMO BOARD?
WHAT THE MCP9700 THERMISTOR DEMO BOARD KIT INCLUDES
The following name and assembly number are found on the MCP9700 Thermistor
Demo Board’s Printed Circuit Board (PCB):
• 102-00156
This PCB goes by the following title:
• MCP9700 Thermistor Demo Board
This board is supported by AN897, “Thermistor Temperature-Sensing with MCP6SX2
PGAs”, (DS00897). It uses a BC Components
detect temperature. The circuit also includes a voltage divider and a MCP6S22
Programmable Gain Amplifier (PGA) and the MCP9700 Linear Active Thermistor.
• Kit Contents
• MCP9700 Thermistor Demo Board
• Associated Tools
• Initial Set-up
The MCP9700 Thermistor Demo Board contains the analog circuitry to measure
temperature. It uses BC Components’ 2322 640 55103 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 Thermistor Demo Board – An assembled and tested PCB (102-00156)
• Microchip Thermal Management Graphical User Interface
• Analog and Interface Products Demonstration Boards CD-ROM (DS21912)
- MCP9700 Thermistor Demo Board User's Guide, (DS51753)
Chapter 1. Product Overview
DEMO BOARD USER’S GUIDE
MCP9700 THERMISTOR
®
2322 640 55103 NTC thermistor to
DS51753A-page 5