Hi, There are so many different transistor types and I cannot keep up. I need help in a circuit. I am using an FPGA that drives 3v. My need is to switch 3v, 5v, and 30v DC being controlled by the FPGA. I will be using pre configured 5v and 30v power supplies. I need 5v and 30v square waves triggered by the FPGA. My circuit design will be Vo down through a resistor down to NPN device to ground and I will tap the voltage off of the "E" lead of the NPN device. I am looking for an NPN device with a non sensitive gate so I can get clean square waves where the E to C current is all or nothing.
My switching rate will be about 5-10 MHz. Is a MOSFET generally used in this type of application? If not, what is?
Thanks.
My switching rate will be about 5-10 MHz. Is a MOSFET generally used in this type of application? If not, what is?
Thanks.