Samuel Groner
Well-known member
For some particular application I need a DC servo with large authority but low noise contribution. At the same time I'd like to avoide the cost of a low-noise JFET opamp. Is there a possibility I'm so far missing to parallel opamps (or entire servo configurations) without having the offset voltages fighting each other? This would allow me to use a cheap TL074.
The particular configuration is an inverting opamp (current-input amplifier) with a noninverting servo feeding the error signal back to the inverting input. An inverting servo is not possible for this application.
Thanks,
Samuel
The particular configuration is an inverting opamp (current-input amplifier) with a noninverting servo feeding the error signal back to the inverting input. An inverting servo is not possible for this application.
Thanks,
Samuel