Driver for a shared bus, in particular a LIN bus

A driver for insertion between a shared bus and a logic device, said driver having a supply node for connection to a voltage supply, a bus node for connection to the shared bus, a transmit data input node and a receive data output node, said driver comprising:

• pull-up circuitry coupled between the supply node and the bus node,
• driver circuitry configured to draw a current from the shared bus as a function of a signal on the transmit data input node, said driver circuitry having a control input connected to the transmit data input node,
• feedback circuitry configured to provide feedback from the shared bus to the control input of the driver circuitry;
• wherein said feedback circuitry comprises filter circuitry configured to low-pass filter at least one signal representative for a signal on the bus node to output at least one filtered signal,
• wherein the feedback circuitry is connected to the receive data output node such that the at least one filtered signal or a signal representative of for said at least one filtered signal is provided at the receive data output node.

A driver for insertion between a shared bus and a logic device, said driver having a supply node for connection to a voltage supply, a bus node for connection to the shared bus, a transmit data input node and a receive data output node, said driver comprising:

• pull-up circuitry coupled between the supply node and the bus node,
• driver circuitry configured to draw a current from the shared bus as a function of a signal on the transmit data input node, said driver circuitry having a control input connected to the transmit data input node,
• feedback circuitry configured to provide feedback from the shared bus to the control input of the driver circuitry;
• wherein said driver circuitry comprises a series connection of a low voltage transistor, a high voltage transistor and a diode, wherein the low voltage transistor has the control input.