I have a MOSFET in series with the output of my amplifier to switch the amplifier output to the downstream circuitry. The MOSFET parasitic capacitance is seen as a load capacitance by my amplifier, and hurts its stability. The gate is driven by a DC signal that switches the MOSFET on/off. The body is biased at a negative DC voltage. I am thinking to use a resistor in series with the gate and a resistor in series with the body to reduce the effect of the gate-drain, gate-source, body-drain, and body-source capacitance.
Are there any trade-offs to placing a resistor in series with the gate and the body?
I am aware that the switching speed of the MOSFET is dependent on the time constant of the series resistor and the gate capacitance.
Thanks for your help