New Japan RadioSemiconductor Product Information

• 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