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Operational Amplifier FAQ
- Q1:
- When using a multi-circuit op. amp incorporating 4 or 6 circuits, how should I treat the unused circuits?
- Q2:
- How can I prevent an op. amp from oscillation?
- Q3:
- If the input voltage of an op. amp exceeds operating voltage, is that a problem to use?
- Q4:
- I cannot find the maximum output current on the data sheet.
- Q5:
- The chart of "Voltage gain vs. phase frequency characteristics" shows all 40dB gain. Doesn't it also explain voltage gain Av figures?
- Q6:
- How do I use the offset adjustment terminal of the op. amp and its adjustment range?
- Q7:
- The input voltage goes down because the input impedance of the op. amp is low. How much is the real value of input resistance?
- Q8:
- Is it possible to calculate differential input resistance?
- Q9:
- What is the maximum output voltage and common-mode input voltage range at actual operating voltage?
- Q10:
- Is it possible to use a single-supply op. amp with dual supply?
- Q11:
- Is it possible to use a dual-supply op. amp with single supply?
- Q12:
- Can I use op. amps at different voltage in positive and negative side?
- Q13:
- Do you have op. amps that feature high-quality sound?
- Q14:
- I am trying to configure an audio circuit using an op. amp. How can I minimise the noise?
- Q15:
- When I configure an audio circuit using an op. amp, what has to be taken into consideration for Sound－guality optiming inoruer to indiuisual prefereuce?
- Q16:
- I heard that New Japan Radio has developed new products using the dielectrically-isolated process (SOI). Is it compatible with audio systems?
- Q17:
- What is the benefit of using switch-equipped op. amps such as the NJM2120 as a selector?
- Q18:
- What kind of precautions should I take when using a voltage follower with stability?
