MCP9700DM-TH1 Microchip Technology, MCP9700DM-TH1 Datasheet - Page 12

• 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

MCP9700 Thermistor Demo Board User’s Guide
DS51753A-page 8
FIGURE 2-2:
The MCP9700 Thermistor Demo Board includes a Thermistor and Microchip’s
MCP9700 Linear Active Thermistor temperature sensors. The thermistor is biased
using a resistive stack which can be adjusted using the user settable dip switches. The
voltage across the thermistor is proportional to change in temperature. The thermistor
output is gained and buffered using Microchip’s MCP6S22 Programmable Gain
Amplifier (PGA). The output of the PGA is directly connected to an Analog to Digital
Converter. The MCP9700 output voltage is also directly connected to an ADC. The data
from the ADC is sent to the PC using the USB interface.
The user can compare and evaluate both the standard thermistor solution and
Microchip’s Linear Active Thermistor solution using this MCP9700 Thermistor Demo
Board.
Temperature Sensor
Linear Active Thermistor
Thermistor
MCP9700 Thermistor Demo Board Circuit Block Diagram.
Thermistor
MCP9700
MCP6S22
Voltage
Divider
PGA
PIC18F2550
© 2008 Microchip Technology Inc.
Interface
USB
PC