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Power Supply Rejection Ratio Measurement


PSRR for Opamp and Voltage References

PSRR is an important parameter to measure for Opamp and votage references. PSRR is a significant performance concern as even small amounts of high frequency ripple voltage at the input can significantly degrade the output precision of voltage reference and impact downstream circuitry. The output of the Op Amp is not only a function of the inputs, but also of the power supply.

Measurement Basics


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PSRR Solution


Vector Network Analyzer

Do you have a vector network analyzer?
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J2120A Line Injector

What Line Injector is required?
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Connections & Test Standards

What accessories are available?
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