The invention provides a CAN-FD wake-up circuit, a CAN
transceiver and an electronic device, the CAN-FD wake-up circuit comprises a level shift module, an amplification comparison module and a wake-up identification module, the differential input end of the amplification comparison module is the source
electrode of an NMOS tube, and the source
electrode of the NMOS tube allows input of
negative voltage, so the level shift module can process a CAN low level
signal in a
negative voltage range, and the wake-up identification module can process the CAN low level
signal in the
negative voltage range. Therefore, the input common-mode level range of the wake-up circuit of the CAN-FD is improved. On-off of the first switch is controlled based on whether the CAN
transceiver is in a dormant state or a working state so as to control access of the second
current source, and the output current of the second
current source is a plurality of times of the output current of the first
current source so as to increase the bandwidth of the amplification comparison module in the working state. Therefore, the amplification comparison module can be simultaneously applied to the dormant state and the working state of the CAN
transceiver, so that the circuit cost is reduced.