16-04-2013, 04:08 PM
FAMILIARISATION OF OP-AMP IC
AIM:
To familiarize with μC741C operational amplifier IC and its electrical characteristics.
Insert the ICs (carefully to avoid bending their leads) into the wider strips, as shown abovelug an op-amp into the breadboard so that it straddles the gap between the top and bottom sections of the socket strip.If you have wired the power buses as suggested above, Pin 1 should be to the left.
Warning:
Do not try to unplug the op-amp with your thumb and forefinger. Use the IC puller or tip of a pen for unplugging.
Throughout this experiment use the external dual DC Power Supply Unit shown in figure below. Use the dual trace oscilloscope to observe the shape and to measure the amplitude of the input and output waveforms. To use the Power Supply Unit:
• Turn the Power Supply ON. Adjust the voltage of the Power Supply to 15V. This will set both positive and negative power sources respectively to +15V and –15V.
• Turn the Power Supply OFF before connecting to the circuits.
• Connect the POS terminal of the Power Supply to the Vcc+ of your circuit. Connect the NEG terminal of the power supply to the Vcc- of your circuit. Connect the COM terminal of the Power Supply to the ground of your circuit.