Hi Yangang,
The LMH5401 is not stable for unity gain in the standard EVM configuration. However, it can be achieved by few changes. The excel calculator you are referring doesn't account for lower gains. You can follow the below reference design when…
Hello Nhan, The LMH5401 does support unity gain however, it requires some extra care. There is a reference design that illustrates this. For gain less than 1 you need to be aware that the amplifier feedback resistors create a bypass path around the…
Hello Cafain,
The answer is that it depends. Many FDA amplifiers are either stable or nearly so at gains of less than 1. In order to be sure you would need to at least simulate your complete application circuit and to be certain a prototype build would…
Other Parts Discussed in Thread: THS4531A , TIDA-00522 Inside the datasheet of the THS4531A (revision January 2016), there are a section Layout (chapter 11 / page 45).
Inside this section, on the item 3, it is possible to read : "Ground or power planes…
