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Thread: Non interacting zero and span. how?
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face BY : Dan Mulally email (remove spam text)



----- Original Message -----
From: "Chris Eddy" <spamBeGoneceddyspamSTOPspamNB.NET>
To: <spam_OUTPICLISTspam.....MITVMA.MIT.EDU>
Sent: Saturday, May 20, 2000 5:22 PM
Subject: [EE] Non interacting zero and span. how?


{Quote hidden}

You could use an inverting summing configuration with a fixed resistor in
the feedback loop and 2 rheostats connected to the inverting input. One
rheostat can connect to a DC source and the other to your signal. The output
will be inverted so you may have to use another opamp invertor to get the
correct polarity.

Dan Mulally

<003701bfc7a2$8007fde0$650c22d0@computer> 7bit

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