Microchip Technology's MCP651, MCP652 & MCP655 (MCP65X) Operational Amplifiers
April 10, 2010
TheMCP651/2/5 (MCP65X) are the world's first and only op amps to include mCal, anon-chip calibration circuit that calibrates offset voltage at power-up using aninternal power on-reset detector, or based upon the state of an externalpin. The result is a low initial voltageoffset and a means to minimize drift over time and temperature, which areextremely important for applications involving instrumentation and sensorconditioning, because this enables extremely precise measurements. The on-boardcalibration circuitry within the MCP65x eliminates the need for externalcalibrating components and minimizes software complexity by offering a simple,single-pin hardware control of the calibration. Relative to achopper-stabilized or auto-zeroed amplifier, mCal Technology can provide a morecost-effective solution and does not have the switching noise inherent tochopper-stabilized amplifiers. mCal Technology offers a cost-effective, easy-to-usealternative by eliminating the need for external calibration and can provide amore cost-effective solution relative to a self-correcting architecture.
For more information: http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en540381&redirects=MCP65x
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