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Controlling offset using VCR

mwminor

Nov 4, 2011
4
Joined
Nov 4, 2011
Messages
4
Hi there

I'd like to use a VCR to control the output offset Voltage of an OpAmp.

The offset of the amplifer (OPA111) at the moment is controlled via a front panel pot (10K), but I'd like to take the pot out of the circiuit and control it using a JEFT (or similar).

However, the OPA111 offset pins are referenced to the negative supply which complicates the circuit.

Can anyone offer any assistance with this,...?

Many thanks

MW.
 

CDRIVE

Hauling 10' pipe on a Trek Shift3
May 8, 2012
4,960
Joined
May 8, 2012
Messages
4,960
Google AD5228 data sheet.

Chris
 
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