Hello
I have an arduino, 5V rail to rail op amp, and an AD9833 function generator, and I want to control the amplitude digitally. I have an MCP4725 DAC that I would like to use, and my research leads me to a JFET or MOSFET solution like this: https://amplifiercircuit.net/voltage-controlled-variable-gain-amplifier.html/amp
Is something like this the preferred solution, or is there something else I should consider?
I have an arduino, 5V rail to rail op amp, and an AD9833 function generator, and I want to control the amplitude digitally. I have an MCP4725 DAC that I would like to use, and my research leads me to a JFET or MOSFET solution like this: https://amplifiercircuit.net/voltage-controlled-variable-gain-amplifier.html/amp
Is something like this the preferred solution, or is there something else I should consider?