is an improved version of the older LM13600, offering several advantages for audio applications:

If you’ve ever dabbled in building your own modular synthesizer, designed a compressor pedal, or experimented with voltage-controlled filters, you’ve almost certainly encountered the

Unlike a traditional Operational Amplifier (Op-Amp) that produces an output voltage proportional to the input, an OTA produces an output current proportional to the input voltage difference. The magic lies in the Amplifier Bias Current ( IABCcap I sub cap A cap B cap C end-sub

) pin. By injecting a small current into this pin, you control the transconductance ( Gmcap G sub m