i Want to detect the RMS value of a High-frequency weak Current: the range is about 0 ~ 100mA, frequency: 10K ~ 200MHz.
So my idea now is to use a non inductive resistor R4 to convert the Current into the Voltage value,The amplification part needs to be amplified about G = 10.I want to ask ADI company what kind of operational amplifier can meet the requirements?
Then To get the RMS value of the voltage,I plan to use ADL5511(DC to 6 GHz Envelope and TruPwr RMS Detector)to get the voltage rms and its Envelope. Is this idea feasible? What do I need to pay attention to？
Sorry this is my first time ask for question. Forgive my English Plz，