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An amplifier can be used to adapt the range of a signal to a requirement, to make it more robust for transmission, or to satisfy interface requirements (like input/output impedance).
2
votes
LTSpice Transconductance Amplifier Simulation
Why don't you use the arbitrary behavioral current source, called "bi" in the symbol library of LTSpice:
It will look like that:
Then the simulation results looks like that:
0
votes
How to design Current Amplifier circuit to amplify the signal current to 1A
What I have done is to just use a Nmosfet and connect it to the load as low side switch. You can use the same idea, but with Pmos if you need a high side.
I think you can save an op-amp like that an …