ARD00354

The ARD00354 is an MCP6N11 and MCP6V2x Wheatstone Bridge Reference Design board that demonstrates the performance of MCP6N11 instrumentation amplifier (INA) and a traditional three op amp INA using MCP6V26 and MCP6V27 auto zeroed op amps. The input signal comes from an RTD temperature sensor in a Wheatstone bridge. Real world interference is added to the bridge's output, to provide realistic performance comparisons. Data is gathered and displayed on a PC, for ease of use. The USB PIC microcontroller and included Graphical User Interface (GUI) show how to implement these functions. This board uses an RTD temperature sensor, in a Wheatstone bridge, to measure the board's temperature. The bridge's output is a small Differential mode (DM) signal with a large Common mode (CM) interference signal superimposed. The CM signal is a PWM waveform generated by the microcontroller, which simulates real world interference.

• RTD temperature sensor
• INA signal conditioning
• PICmicro signal conditioning and communications
• PC software (GUI): Thermal management utility

Applications

Sensing & Instrumentation, Portable Devices, Medical

Contents

MCP6N11 and MCP6V2x Wheatstone Bridge Reference Design, USB cable, Important Information Sheet

Notes

90 Day Warranty only. After Expiration of Warranty returns must be processed via Microchip.