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MCP651 Input Offset Evaluation Board

Part Number: MCP651EV-VOS

Summary:

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),

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Documents

MCP651 Input Offset Evaluation Board User's Guide
5/19/2009
1MB
MCP651/1S/2/3/4/5/9 Data Sheet
8/12/2014
1MB
MCP6V01/2/3 Data Sheet
4/25/2014
999KB
MCP651 Input Offset Evaluation Board Gerbers
5/19/2009
159KB

Application Notes

AN1258 - Op Amp Precision Design: PCB Layout Techniques
7/3/2012
538KB
AN1177 - Op Amp Precision Design: DC Errors
3/12/2008
269KB

Product Features

    • 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

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Summary

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.

Package Contents

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.