MCP6SX2DM-PCTLTH MCP6SX2 PGA Thermistor PICtail Demo Board

The MCP6SX2 PGA Thermistor PICtail Demo Board features the MCP6S22 and MCP6S92 Programmable Gain Amplifiers (PGA). These devices help:

  • Overcome the non-linear response of the on-board NTC thermistor
  • Provide multiplexing between two inputs; the other input can be any desired source. This opens the possibilities of temperature correcting another sensor, and of increasing the number of PIC® microcontroller I/O pins available for other purposes.

Two on-board variable resistors allow users to experiment with different designs on the bench. DIP switches on the board select certain resistors (in a binary weighted sequence) to add together, thereby emulating the series resistor in the voltage divider and the thermistor’s change in resistance over temperature.


A complete solution is achieved by interfacing this board to the PICkit™ 1 Flash Starter Kit (see DS40051) and the Signal Analysis PICtail™ Daughter Board (see DS51476). The solution provides:

  • PC software interface
  • PICmicro microcontroller
  • Firmware programmability
  • 10-bit ADC (on the microcontroller)
  • Firmware (with re-locatable assembler code) for the microcontroller.

On-Board Thermistor
    Voltage Divider
      Documentation & Software
      AppNotesLast UpdatedSize
      AN897 - Thermistor Temperature Sensing with MCP6SX2 PGAs5/31/2006 3:42:23 PM452KB
      MCP6S21/2/6/8 Datasheet2/5/2013 10:07:19 AM724KB
      Thermistor PGA PICtail Daughter Board User's Guide6/2/2006 9:17:33 AM804KB
      MCP6SX2 PGA Thermistor PICtail Demo Board Gerbers1/10/2006 4:09:08 PM160KB
      MCP6SX2 PGA Thermistor PICtail Demo Board Firmware1/10/2006 4:05:52 PM53KB
      Design Spreadsheets8/1/2005 1:57:56 PM680KB
      PICkit™ 1 FLASH Starter Kit User's Guide1/21/2005 2:56:11 PM1MB
      Single-Ended, Rail-to-Rail I/O, Low-Gain PGA10/20/2004 5:07:49 PM690KB
      Signal Analysis PICtail™ Daughter Board User's Guide7/22/2004 2:17:43 PM1MB
      MCP6S21/2/6/8 Datasheet MCP6S28
      Single-Ended, Rail-to-Rail I/O, Low-Gain PGA MCP6S93
      AN897 MCP6G04
      AN897 Source Code MCP6G04
      MCP6S21/2/6/8 Datasheet MCP6SX2DM-PCTLTH
      Thermistor PGA PICtail Daughter Board User's Guide MCP6SX2DM-PCTLTH
      MCP6SX2 PGA Thermistor PICtail Demo Board Gerbers MCP6SX2DM-PCTLTH
      MCP6SX2 PGA Thermistor PICtail Demo Board Firmware MCP6SX2DM-PCTLTH
      Design Spreadsheets MCP6SX2DM-PCTLTH
      PICkit™ 1 FLASH Starter Kit User's Guide MCP6SX2DM-PCTLTH
      Single-Ended, Rail-to-Rail I/O, Low-Gain PGA MCP6SX2DM-PCTLTH
      Signal Analysis PICtail™ Daughter Board User's Guide MCP6SX2DM-PCTLTH
      MCP6SX2DM-PCTLTH