Op Amp Spot Noise Measurement Test Circuit

This is where we talk about testing, measuring and repairing things. Sometimes we have to repair the equipment we use to test, measure and repair other things. It's an endless cycle of fixing the broken things we need to fix other broken things.
Post Reply
User avatar
mediatechnology
Posts: 3260
Joined: Sat Aug 11, 2007 2:34 pm
Location: Oak Cliff, Texas
Contact:

Op Amp Spot Noise Measurement Test Circuit

Post by mediatechnology » Tue May 17, 2016 9:14 pm

"Op Amp Spot Noise Measurement Test Circuit," Raytheon Linear Integrated Circuits, 1989.

While spring cleaning and throwing out data books I scanned the Raytheon catalog to see if anything caught my eye.
This circuit, an RC4136 application, measures op amp spot noise at 1 Hz, 10 Hz, 100 Hz and 1 kHz as well as DC to 1 Hz "wideband."
While there are certainly more modern op amps than the 4136 that can be used, its still appears to be a very useful circuit.

Image
"Op Amp Spot Noise Measurement Test Circuit," Raytheon Linear Integrated Circuits, 1989.

Post Reply