I used AD8310 as a detector, and converted the detected voltage to the desired voltage range through the invert phase scale converter circuit. However, when I connected the output of the detector to the invert phase scale converter circuit, undesirable results would appear (As shown in Figure 1 and 2).When inserting the voltage follower between them, I can get the result I want (As shown in Figure 3 and 4). However, after the simulation, I find that the output of the invert scale converter circuit is different from what I want. What should I do?The next level is AD8338, and the circuit is shown in Figure 5.
[edited by: rookie1 at 1:57 PM (GMT -5) on 29 Dec 2020]