I have designed a multi op amp circuit

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SUMMARY

The discussion centers around the practical challenges of designing a multi op-amp circuit, specifically addressing concerns such as external interference, resistor tolerance, op-amp imperfections, bandwidth issues, and internal resistance. The responses highlight that the specific application of the circuit significantly influences these potential issues. Key factors such as whether high speed or low noise is a requirement are critical in determining the circuit's performance and reliability.

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  • Knowledge of external interference and its effects
  • Familiarity with resistor tolerance and its implications
  • Awareness of op-amp characteristics including bandwidth and internal resistance
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  • Research the impact of external interference on op-amp circuits
  • Study resistor tolerance and its effect on circuit performance
  • Learn about op-amp imperfections and how to mitigate them
  • Explore bandwidth considerations in high-speed vs. low-noise applications
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Electronics engineers, circuit designers, and hobbyists involved in op-amp circuit development and optimization.

Jimmy5thumbs
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Help me !

I have designed a multi op amp circuit, and am now looking to build it. will i find any practical issues with such things as external interference, resistor tolerance, op amp imprfections, bandwidth issues, internal resistance. If so why?
 
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Hi welcome to the forums :)

A lot of your issues will depend on what the op-amp circuit is being used for.

is Hi speed or low noise a requirement ?

cant really give serious answers without knowing what your circuit is designed to do

Dave
 
Most likely this can only be answered by an "old timer". I am making measurements on an uA709 op amp (metal can). I would like to calculate the frequency rolloff curves (I can measure them). I assume the compensation is via the miller effect. To do the calculations I would need to know the gain of the transistors and the effective resistance seen at the compensation terminals, not including the values I put there. Anyone know those values?

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