Pinout

LM741 pinout and sample LM741 Projects

March 27, 2020

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LM741 series operational amplifiers are designed for general purpose use. It has overload protection feature at its entrance and exit. In many applications, the 709C, 748 and MC1439 can be used interchangeably. You will learn LM741 Pinout in this page.

Where is LM741 used?

Comparators
Multivibrators
DC Amplifiers
Summing Amplifiers
Integrator or Differentiators
Active Filters

LM741 Pinout

The LM741 comes in an 8-pin body. From these to the V + and V- pins
Voltage is applied in the range of ± 5V and ± 18V.

Pin 1—Offset null
Pin 2—Inverting input
Pin 3—Non-Inverting input
Pin 4—Negative Supply
Pin 5—No connection
Pin 6—Output
Pin 7—Positive Supply
Pin 8—Offset null

LM 741 Features

Supply voltage range: ±5V to ±18V
Input offset voltage: 2mV to 6mV
Input Impedance: 300KΩ to 2MΩ
Power consumption: 50mW to 85mW
Supply current: 1.7mA to 2.8mA
Power Dissipation: 0.5W
Differential input voltage:±30V
Max Input voltage:±15V
(should not exceed the power supply voltage)
Output short circuit time: none
Operating temperature: 0 to 70°C
Voltage Gain: 20,000 to 200,000
Input offset voltage: 2mV to 6mV
Input Impedance: 300KΩ to 2MΩ
Bandwidth: 500KHz to 1.5MHz
Slew rate: 0.5V per uS

LM741 example projects

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11- Lm741 comparator circuit

The voltage falling on the LDR and the voltage falling on the potentiometer are compared. Since the resistance of the LDR will increase in the dark, the LM741 will output. The led will light up.

22- Lm741 Multivibrators circuit

Source: http://www.learningaboutelectronics.com/Articles/Astable-multivibrator-circuit-with-an-LM741-op-amp.php

Oscillators and signal generators are counted in electronic electronics. Because the operation of a digital clock, the operation of an inverter circuit, the operation of various transmitters depend on the oscillators. Oscillators form the basic structure of that circuit

Oscillators; They are called signal generators or signal sources. Oscillators are positive feedback amplifiers. Oscillation or variable signal generation is achieved by applying positive feedback to the amplifiers. There are four most common types of variable signs. These are square, triangle, sawtooth and sinus marks. Sign sources are also called by the names they produce, as well as by different names.
Astable multivibrator is a square wave oscillator. The astable multivibrator shown in the figure is similar to a dial gauge other than the capacity element at its inlet. By creating a voltage divider, R1 and R2 apply a certain ratio of the output voltage to the + input of the operational amplifier.