This lab explores some circuits using the LM348 operational amplifier
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This laboratory explores some circuits using the LM348 operational amplifier, which you should find in the blue toolboxes and in your parts kit. You will use the triple-output DC supply on the lab bench to provide the ±12-volt power to the op-amp. Figure 6 at the end of this document shows recommended power connections. Connect the +12-volt supply to Va and the −12-volt supply to Vb. Connect the COM output to ground. The pin diagram for the LM348 is reproduced in Figure 1.
Figure 1. Pin Diagram of LM348 IC
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Figure 2. Inverting amplifier
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Figure 3. Noninverting amplifier
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Figure 4. Voltage follower.
Frequency | 400 Hz | 700 Hz | 1 kHz | 5 kHz | 10 kHz | 50 kHz |
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Figure 5. Cascaded amplifier
Figure 6. Connecting prototype board to the triple-output power supply.
Maintained by John Loomis, last updated 9 July 2014