Our instrumentation amplifiers include internal matched feedback and are ideal for data acquisition applications. Their ability to accurately extract a small signal in the presence of a large common mode makes these instrumentation amplifiers ideal for sensor amplification. Electromagnetic Interference (EMI) filtering on select devices maintains excellent performance in the most demanding environments.
The MCP6N11 and MCP6V2x Wheatstone Bridge Reference Design demonstrates the performance of Microchip's MCP6N11 instrumentation amplifier (INA) and a traditional three op amp INA using Microchip's 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) provides the means to configure the board and collect sample data.