Hi,
we are using a SPI-transmission in a rough environment with random transient fields, which are sometimes disturb the transmission.
The idea is to shift the levels from 3V3 to 12V (or more) that the induced transients (in a range of 4V) will not be seen as HIGH-level.
We know (old) circuits like CD40109, but they are not fast enough for SPI. Existing SPI-Shifters end up at 5V.
Are there other components or ideas ?
regards, E. Brand