WEEK 6

Comparison Study of audio amplifier performances using Class AB, B and D topologies in portable audio devices.

For this week, I'm doing some discussion with my supervisor and buying all the component for Class B and AB audio amplifier. Other than that, I'm doing some research about IC TL082 that I will use in Class B audio amplifier.

IC TL082 (Absolute Maximum Ratings):

• Supply voltage: 18V
• Operating temperature range: 0 C + 70 C
• Tj (MAX): 150 C
• Storage temperature range: -65 C to + 150 C

Connection diagram:

Typical connection:

This devices are low cost, high speed, dual JFET input operational amplifiers with an internally trimmed input offset voltage. They require low supply current yet maintain a large gain bandwidth product and fast slew rate.