I am designing an RF level controller with the AD8314 Logarithmic RF Detector, using it's non-inverted output (V_UP, pin 6).
According to the datasheet, the loop filtering capacitor Cf should be placed between pin 4 (FLTR) and pin 6 (V_UP).
Maybe…
The speed of the op amps really won't be the limiting factor in this type of application. The two dominant factors are: The speed of the log amp and how fast can the VGA which is being controlled switch.( the ADL5519 has a very fast rise time so it won…
Q.
How can I avoid startup transients when operating the AD8318 in Controller Mode? I am using the AD8318 Log Detector/Controller to control the output level in an AGC loop. The control loop consists of a fixed-gain RF amplifier, an ADL5330 VGA, a…