I am trying to terminate the unused unity-gain unstable op-amp. I have tried to terminate it with the typical unity-gain stable configuration (http://www.maximintegrated.com/en/app-notes/index.mvp/id/1957) and so far in the lab, it seemed to work and gave stable output. However, I am still concerned about it as it is unstable at unity-gain region mentioned in datasheet. I want to learn if there is anything more robust than using unity-gain termination configuration. The amplifier I am using is OPA2614 from TI. So far I have tried this to stabilize the output at 12V but don't know if this is the best way.:
Electronic – Terminating unused unity-gain Unstable op-amp
operational-amplifierterminationunity-gain
Related Topic
- Electrical – Unity Gain Op Amp Configuration: Stability
- Electronic – Op-Amp with Voltage Controlled Gain and Unity DC Gain
- Electrical – How to stabilize the output square wave of a TL074CN (Comparator)
- Electronic – LM358 opamp unity gain cap
- Electronic – High freq OP-AMP voltage follower is ringing and is unstable
- Electronic – Op-Amp Unity Gain Frequency
- Electronic – Significant error with unity-gain feedback op-amp
Best Answer
This would be better (output left open):
simulate this circuit – Schematic created using CircuitLab
Both inputs are within the common-mode range of the amplifer- see the datasheet which gives the values with a +/-6V supply and translate by adding 6V to the numbers.