I am working with Transmitter and receiver design using an interconnect. At the transmitter side i am using a current mirror with a current of 100uA. On the top of that i have used another MOSFET which gets the digital input. depending on whether the input is high or low the MOS will turn on and off respectively. When the MOS is on the current mirror sends the current through it resulting in transmission. similarly for the off state also. The problem here is as the MOS is turning on and off very fastly from 0 to Vdd ..... I am getting spikes in the transmission current (i am working at 200Khz) due to parasitic capacitances..... So please help me how to get rid of those spikes or if you have any other idea how to design the transmitter side to transmit current to the reciever side..then please share it.....
I am attaching the transmitter side circuit below....
I am attaching the transmitter side circuit below....
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