Perform PSRR testing with analyzers having no dc-bias ports

Focus:

To test PSSR of an op amp, a circuit adds dc bias to the reference signal generated by an analyzer . This circuit allows use of an analyzer that has no dc-bias port, but permits characterization of frequency response at low frequencies.

What you’ll learn:

• How to measure an op amp's PSRR when using signal analyzers with no dc bias port
• How to measure an op amp's PSRR at frequencies below 30 kHz

Notes:

An EDN Design Idea

View the Source

Author & Publication:

David Karpaty, Analog Devices, Wilmington, MA; Edited by Charles H Small and Fran Granville, EDN, Jul 19 2007

This article summary appears
in the HOW2POWER Design Guide.

The Design Guide offers
organized access to
hundreds of articles
on dozens of power conversion
and power management topics.

The Design Guide search results
include exclusive summaries
and accurate "how to" analysis
to help you make faster,
more informed decisions.

Search
for more articles