I'm building a programmable analog signal generator to drive some scientific equipment. The equipment says it has an input impedance of 50 Ohms, and uses 50 Ohm coax to make the connection. The output stage of my generator consists of an instrumentation amplifier (INA2128).
Do I need to impedance match the output of the driver with the coax? Is it as simple as placing a series 50 ohm resistor, or will I need an additional buffer stage?
Do I need to impedance match the output of the driver with the coax? Is it as simple as placing a series 50 ohm resistor, or will I need an additional buffer stage?