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Programmable operational amplifier (schematic diagram, pcb, source program, physical object, simulation)

 
Overview

The programmable gain operational amplifier, which took two days to make, was taken out to show off. Required components: CD466 89C51 UA741 Power supply voltage: +5V, -5V Magnification: 1, 20, 30, 50 times. Input signal voltage: 10mV (20 times) -150mV (50 times). Frequency response: 10Hz-10KHz Attachment: The compressed file contains schematic diagram, pcb, source program and simulation.

 
 
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Update:2024-11-14 23:30:26

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