Category: Hardware
HI, i am following Appnote AN0582 for the development of data acquisition system. my goal is to develop analog frontend with AC/DC coupling option and only using single supply for the opamps. input range of the signal should be +/-10V, VCOM is 2.5V. the problem seems to be with the differential amplifier as the outputs are 180 but the amplitudes are not same or not equally centered around 2.5V. attached are the simulation result. i am not very much into analog stuff just following the AppNote and simulating the results yet. need some advice as at later stage i would be incorporating 4mA current source as well to build an IEPE solution for vibration measuremeSIM.ascnt. Thanks in Advance.
