log in
BR
Britt-Espinosa
·
Created Jul 30, 2026
·
Updated Jul 30, 2026
Details
Components
4
Schematic
Yes
Simulation
Transient analysis
Copies
Not copied yet
About this circuit
An op-amp logarithmic amplifier — the output voltage is proportional to the log of the input ("log in"). Originally published by 21pyl on Multisim Live (https://www.multisim.com/content/6vwXvjoAZjivFzn6U8gFFM/log-in/), where it gathered nearly 200,000 views and 148 copies. Imported to CircuitSim ahead of Multisim Live's September 15, 2026 shutdown to preserve it. If you're the original author and would like to claim, update, or remove this circuit, reach out at circuitsim.com/contact.
Components used
Components used
4 components
NameManufacturerMPNCountType
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