hi, i am developing a weigh scale application using Cirrus Logic 5532 24-bit ADC in unipolar mode.the output i am getting is very unstable (flickering on display). Can anybody please tell me how to get a stable count.
We use the same CS5532 for current measurement in battery management systems and I agree that its output might be very noisy. I use the upper 16 bits of the 24 bit AD-result and there's still noise. Noise depends on the hardware design (PCB Layout...). Don't use the same ground and supply for AD-converter and controller. The controller is very noisy, and that might also influence its supply. Before using software filtering (moving AVG), a hardware filter (i.e. anti aliasing filter) and perhaps a pre-amplifier (instrumention amplifier) is necessary.