You can find the documentation for the opAmp board here:

Inverting network

The inverting network on the Operational Amplifier Experimenter Board, when interfaced with the LTC1037 op-amp, plays a crucial role in signal processing. This network is designed to invert the phase of the input signal, meaning that the output signal is 180 degrees out of phase with respect to the input.

• Feedback Resistor (Rf): A resistor connected from the output to the inverting input, Rf, plays a pivotal role in determining the gain of the amplifier. The gain in this configuration is given by $R_f/R_{in}$ , where $R_{in}$ is the resistor chosen in the inverting input network and the $R_f$ is the resistor chosen in the feedback Network.
• Signal Inversion: The primary characteristic of this network is signal inversion, accompanied by amplification based on the resistor values.

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Press the on the toggle arrow to extend the theory on Inverting Amplifiers

Materials Required

• Red Pitaya STEMlab board
• Operational amplifier board in inverting configuration
• Oscilloscope probes
• Jumper wires

Connection Guide

1. Signal and Power Connections:

• Connect the output of the Red Pitaya's signal generator to the IN- terminal on the op-amp PCB (J4 connector).
• Move the Bottom jumper 1k||10k to the middle of the connector(pin2,pin3).

• Connect the oscilloscope's Channel 1 probe to the same point (IN-) to monitor the input signal to the op-amp.
• Connect the oscilloscope's Channel 2 probe to the OUTPUT terminal on the op-amp PCB to observe the amplified signal.
• Power the op-amp by connecting the 5V supply from the Red Pitaya to the positive power rail Vs+ and the -4V to the negative power rail Vs- on the op-amp PCB.

1. Change Ratio of Rin and Rf - By moving the Bridge connectors on the inverting input network, which represents Rin and by moving the bridge connectors on the feedback network, which represents Rf, you can change the gain of the circuit.
$$V_{out}=-\frac{R_f}{R_{in}}V_{in} \longrightarrow A_u=\frac{V_{in}}{V_{out}}=-\frac{R_f}{R_{in}}$$
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Click on the Toggle button to check out some of the different gain setting available with picture examples:

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Results

Non Inverting Amplifier Experiment

The non-inverting network on the Operational Amplifier Experimenter Board, when used with the LTC1037, is integral for applications where phase preservation of the input signal is necessary.

• Feedback Loop: A feedback resistor (Rf) is connected from the output to the inverting input, along with a resistor (Rin) connected from the inverting input to the ground. This resistor network sets the gain of the amplifier.
• Amplifier Gain: The gain in a non-inverting configuration is given by the formula 1 + Rf/Rin, offering a minimum gain of 1 (unity gain). This allows for signal amplification without inversion.
• Phase Consistency: Unlike the inverting configuration, the non-inverting network retains the same phase between the input and output, making it ideal for applications where such consistency is critical.

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Press the on the toggle arrow to extend the theory on Non Inverting Amplifiers

Materials Required

• Red Pitaya STEMlab board
• Operational amplifier board in non-inverting configuration
• Oscilloscope probes (on the picture yellow and orange jumper are used instead of probes)
• Jumper wires

Connection Guide

Signal and Power Connections:

• Move the Bridge Connector and shortcut the inverting network like shown in the picture bellow. Also move the bottom bridge(non-inverting input) to the left side of the connector.

• Connect the Red Pitaya's signal generator output to the IN+ terminal on the op-amp PCB (often marked as the non-inverting input).
• Attach the oscilloscope's Channel 1 probe to the IN+ terminal to monitor the input signal. Attach the oscilloscope's Channel 2 probe to the OUTPUT terminal on the op-amp PCB to observe the amplified signal.
• Provide power to the op-amp by connecting the 5V and -4V supplies from the Red Pitaya to the appropriate power rails on the op-amp PCB. (same as in inverting configuration)

• Change Ratio of Rg and Rf - By moving the Bridge connectors on the inverting input network, which represents Rg and by moving the bridge connectors on the feedback network, which represents Rf, you can change the gain of the circuit.

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Toggle the menu to check out some of the different gain setting available: