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MCP651EV-VOS MCP651 Input Offset Evaluation Board

The MCP651 Input Offset Evaluation Board is intended to provide a simple means to measure the MCP651 Input Offset Evaluation Board op amp’s input offset voltage under a variety of operating conditions. The measured input offset voltage (VOST) includes the input offset voltage specified in the data sheet (VOS) plus changes due to: power supply voltage (PSRR), common mode voltage (CMRR), output voltage (AOL), input offset voltage drift over temperature (ΔVOS/ΔTA) and 1/f noise.

The MCP651 Input Offset Evaluation Board works most effectively at room temperature (near +25°C). Measurements at other temperatures should be done in an oven where the air velocity is minimal.

• Test Points for inputs (bias the DUT at any desired point), outputs (to measure VOS and the DUT's supply current) and others (power supplies, setting the MCP651's VCAL voltage, etc.)
• Potentiometer to set MCP651's VCAL voltage
• Push button switch to initiate a calibration sequence in the MCP651
• DIP switch to select either high or low gain for the measured offset (VOS)
• DUT footprints for either SOIC-8 or PDIP-8 parts

Documentation & Software

AppNotes	Last Updated	Size
AN1258 - Op Amp Precision Design: PCB Layout Techniques	7/3/2012 9:38:19 AM	538KB
AN1177 - Op Amp Precision Design: DC Errors	3/12/2008 10:32:51 AM	269KB
MCP651/1S/2/3/4/5/9 Data Sheet	8/12/2014 9:34:22 AM	1MB
MCP6V01/2/3 Data Sheet	4/25/2014 4:20:54 PM	999KB
MCP651 Input Offset Evaluation Board User's Guide	5/19/2009 3:06:34 PM	1MB
MCP651 Input Offset Evaluation Board Gerbers	5/19/2009 2:35:33 PM	159KB