LM741

SNOSC25D – MAY 1998 – REVISED OCTOBER 2015

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Typical Application (continued)

8.2.3 Application Curve

The waveforms in Figure 2 show the input and output signals of the LM741 non-inverting amplifier circuit. The

blue waveform (top) shows the input signal, while the red waveform (bottom) shows the output signal. The input

signal is 1.06 Vpp and the output signal is 1.94 Vpp. With the 4.7-k

Ω resistors, the theoretical gain of the system

is 2. Due to the 5% tolerance, the gain of the system including the tolerance is 1.992. The gain of the system

when measured from the mean amplitude values on the oscilloscope was 1.83.

Figure 2. Waveforms for LM741 Noninverting Amplifier Circuit

9 Power Supply Recommendations

For proper operation, the power supplies must be properly decoupled. For decoupling the supply lines, a 0.1-µF

capacitor is recommended and should be placed as close as possible to the LM741 power supply pins.

10

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