Timeline for Instrumentation Amplifier Level Shifter
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Jan 8, 2015 at 17:32 | comment | added | George Herold | Dang single sided opamp circuits. Can you make +1.7 V, and run that through a differential opamp circuit. I think that should work single sided.. (but I could be wrong.) | |
| Jan 8, 2015 at 16:32 | comment | added | Spehro 'speff' Pefhany | You might be able to get around it, but that's not quite what you asked. You could use an op-amp to subtract a voltage from the output, or use differential input to the ADC if it is supported. | |
| Jan 8, 2015 at 16:29 | comment | added | user1821517 | My instrumentation amplifier works with a single supply. So I won't get around creating a negative voltage on my board? | |
| Jan 8, 2015 at 16:27 | history | edited | Spehro 'speff' Pefhany | CC BY-SA 3.0 |
added 89 characters in body
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| Jan 8, 2015 at 16:25 | comment | added | Spehro 'speff' Pefhany | You can generate the negative supply from the +3.3 using a charge pump (or a DC-DC but a charge pump would be more appropriate). The instrumentation amp will also need a negative supply. | |
| Jan 8, 2015 at 16:24 | comment | added | user1821517 | I only have 3.3V to GND available. How would I get a negative voltage from an opamp without dual supply voltages? | |
| Jan 8, 2015 at 16:20 | history | answered | Spehro 'speff' Pefhany | CC BY-SA 3.0 |