Other Parts Discussed in Thread: THS4521
The problem is that the output bias of ths4521 shkj is obviously larger than that of other normal ths4521 shkj chips when power is on. At the same time, the output of unstable ths4521 shkj chips with a lot of interference and effective signals is affected, which is equivalent to not working properly. After replacing another new ths4521 shkj chip, the output is normal and stable.
The fourth line of the test chart, the fourth channel test data, is that t

he ths4521 shkj result is abnormal.