You can also choose to have the output be the inverse of the input or match the input. Different op-amp designs have different maximum values that they can achieve for the gain, but for the vast majority of applications, you get to choose the level of gain you want to apply to the input differential. Regardless of what you are amplifying, be it voltage, current, or power, dividing the output by the input will give you your overall gain. The value of amplification is called the gain and is often seen measured in decibels (dB). By looking at the difference between the two inputs, and using the +/- voltage supplies as max/min output values, the op-amp will output a voltage reference value that can be many times higher than the input. Op-amps are usually two-input, one-output devices, with additional pins for +/- voltage supplies. Some really good educational/instructional material is available here, under Chapter 5. I recommend you take the time at some point to read up on them though since they are so useful in so many applications. There won't be any heavy math involved, just some summarizing. The output pin of this IC is PIN6.If you could really care less about the theory behind op-amps or just don't want to read right now, skip this step. In Op-amp IC 741, PIN2 is an inverting input terminal and PIN3 is non-inverting input terminal. The output of the operational amplifier is the product of the gain and the input voltage. And if the voltage of inverting input (-) is Higher than non-inverting end (+), then output is LOW. When voltage at non-inverting input (+) is higher than the voltage at inverting input (-), then the output of comparator is HIGH. Like if PIN 3 is having +ve polarity then we will get +ve polarity of output from PIN 6. When input source is connected to non-inverting terminal PIN 3 and PIN 2 is feedback with the output PIN 6 then the op-amp is in non-inverting condition. Like if PIN 2 is having +ve polarity then we will get –ve polarity of output from PIN 6. When input source is connected to inverting terminal PIN 2 and feedback with the output PIN 6 then the op-amp is in inverting condition. OUTPUT Voltage = Gain * Input VoltageĪn op-amp can be used in two ways: 1. The LM741 can operate with a single or dual power supply voltage. Op-amps have large gain and usually used as Voltage Amplifier. The main function of this IC is to do mathematical operation in various circuits. An operational amplifier IC is used as a comparator which compares the two signal, the inverting and non-inverting signal. LM741A, LM741C, LM709C, LM201, MC1439, and LM748Īn LM741 operational amplifier is a DC-coupled high gain electronic voltage amplifier. TO-99 and CDIP - 300 ˚C (for 10 seconds – prescribed).Soldering pin temperature – PDIP package - 260 ˚C (for 10 seconds – prescribed).Operating temperature should be -50 to 125 ˚C.Minimum, normal and maximum Power Consumption for this IC is ☑0v, ☑5v and ☒2v respectively.Prevent from latch-up when common-mode range is exceeded.No external frequency compensation is required.Large common mode rejection ratio (CMRR) and differential voltage ranges.Provided with short circuit and overload protection.LM741 has only one op-amp inside, there are some op-amp IC’s having more than one op-amp like LM358, LM148, LM248, LM348.LM741 Op-Amp IC Features and Specifications Pin used for remove the offset voltage and balance input voltage.