A classic application is the compressor pedal (like the MXR Dyna Comp), where the output signal is used to drive the IABCcap I sub cap A cap B cap C end-sub pin, reducing gain when the input is too loud. Tips for Working with the It typically runs on
's datasheet is packed with circuits that make it perfect for creative audio processing: 1. Voltage-Controlled Amplifier (VCA) lm13720
is an improved version of the older LM13600, offering several advantages for audio applications: A classic application is the compressor pedal (like
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 The magic lies in the Amplifier Bias Current
) of the amplifier—in simple terms, you can control the gain of the chip using a voltage. Key Features of the LM13700
But what makes this decades-old chip still relevant in 2026? Let's dive into the world of OTAs and why the remains indispensable. What is an OTA?