LogACDemod (Demodulating AC Logarithmic Amplifier)
Symbol
Available in ADS
Parameters
Name |
Description |
Units |
Default |
---|---|---|---|
CurrentSlope |
Gradient of transfer characteristic |
A/decade |
1.e-3 |
VoltIntercept |
Vin for zero output |
V |
1.e-3 |
Z1 |
Reference impedance for port 1 |
Ohm |
50 |
Notes/Equations
- LogACDemod uses a square-law detector and an ideal logarithmic function.
- The function is in the form of voltage-input/current-output.
- LogACDemod is not recommended for transient simulation.
- Several logarithmic amplifiers are available in ADS: LogACDemod, LogDC, LogSuccDetect, and LogTrue. These components accept an RF input and generate a DC output voltage proportional to the log of the input voltage.