On Wed, Jan 29, 2025 at 01:05 PM, <biastee@...> wrote:
All things being equal, the differential amp has an edge over the common base where CMRR is concerned.?
Hi Leong,
?
OK, due to your research, the differential amp seems to achieve a by far better CMRR.
The CMRR of a loop amplifier is responsible for the null depth, a distortion of the radiation pattern, and for the "antenna effect", the sensitivity to common mode voltages caused by electric fields. That leads to the question, what is, from the practical point of view,? the minimum CMRR tolerable at a certain frequency or what is a sufficient or recommended CMRR?
?
regards, Fred
