Figure 4 shows how isolation is achieved. The sensor signal is usually conditioned by filters, protection circuits, and an amplifier. The resulting analog signal is digitized by the ADC.

Isolated power supplies are preferred ... Therefore, the routing of digital signals near an analog circuit can be shielded as well. This minimizes the effects that noisy digital signals may ...

Practical optical isolation for analog signals Isolation between the input and ... It is important to note that the maximum range of the input signal and the circuit’s power consumption depend heavily ...

A sensor signal conditioner (SSC) is an integrated circuit that improves — or conditions — the signal coming from a sensor to reduce noise. The SSC also converts the signal from analog to digital ...

This simple circuit provides better than 1% accuracy in optically coupling a DC voltage signal. To compensate for the non-linearity of the optical isolator, an identical device is connected in the ...