A simulation tool such as LTspice from Analog Devices can be used for initial testing of the circuit to verify that the configuration will work with these components (in principle) - Preview
![ltspice - Should I connect the analog common ground the earth in this configuration? - Electrical Engineering Stack Exchange ltspice - Should I connect the analog common ground the earth in this configuration? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/CT7js.png)
ltspice - Should I connect the analog common ground the earth in this configuration? - Electrical Engineering Stack Exchange
![operational amplifier - Op-Amp Based Multiplier LTSpice Simulation - Electrical Engineering Stack Exchange operational amplifier - Op-Amp Based Multiplier LTSpice Simulation - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/4Ij9J.png)