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perational 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?
Comparator FAQ