remains a pillar of analog DIY and synthesizer design. Its ability to create voltage-controlled systems simply and effectively, combined with the convenience of built-in buffers and linearizing diodes, ensures its place in the analog designer's toolkit for years to come. Ready to start your next analog project? 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 lm13720
) pin. By injecting a small current into this pin, you control the transconductance ( Gmcap G sub m remains a pillar of analog DIY and synthesizer design
is available from Texas Instruments and various distributors. If you'd like to dive deeper, I can help you with: for a VCA or VCO. Component matching tips to reduce distortion. Alternatives for modern, low-noise designs. What are you planning to build? lm13700.pdf - Texas Instruments The Unlike a traditional Operational Amplifier (Op-Amp) that
Keep inputs below 1mA to avoid unhappy transistors.