u04f061
Advanced Member level 4
hello dear friends
i have designed a log amplifier which is not producing the predicted results
i have simulated this on orcad capture.if any body has this capture plz run my circuit.
i have attatched circuit diagram of it with this post.
accarding to my calculations its output should be the natural log of ratio input voltages multiplied by 0.0257*K.where k=1 to 2;
but the result is k=1 3 to 4
plz have a look at this
i have designed a log amplifier which is not producing the predicted results
i have simulated this on orcad capture.if any body has this capture plz run my circuit.
i have attatched circuit diagram of it with this post.
accarding to my calculations its output should be the natural log of ratio input voltages multiplied by 0.0257*K.where k=1 to 2;
but the result is k=1 3 to 4
plz have a look at this