| Electronics > Beginners |
| Need assistance in calculating resistors in a differential amplifier |
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| RandallMcRee:
--- Quote from: mitrynicolae on April 08, 2019, 07:16:28 pm ---Thanks for your help, but also the online calculator showed that the R1 should exactly match the R2 (according to their schematic). Basically if the resistors are not perfect then weird voltages will appear on the opamp output. --- End quote --- Right. This is why you should consider an integrated difference or instrumentation amplifier. The resistors are built in and trimmed to precisely match. All kinds of benefits, go to Analog Devices site and read some app notes. |
| mitrynicolae:
Thank you RandallMcRee. I will open another thread starting by your idea. |
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