LM1458 is a dual operational amplifier which has a lot of applications but is widely used in audio amplification applications. These external components used such as resistors, capacitors, etc. The table below can be referred to understand the pin configuration of the Op-amp.Īn operation amplifier is basically a voltage amplifier which is used along with some external components between its I/O pins. The LM1458 has 8 pins for inputs/outputs and power. The following figure is the diagram of LM1458 pinout. No latch up when input common mode range is exceeded.Vos (offset voltage 25 C) (Max) (mV) 6.Wide common-mode and differential voltage ranges.Working and Need of an Operational Amplifier This is an example circuit utilized for the audio distribution amplifier using TL074.Video: Adjustable DC Offset with an LM1458 One of the uses of TL074 is the audio preamplifier. The output of the fourth OP-AMP is obtained at pin no. For the fourth OP-AMP, inverting input is applied at the pin.The output of the third OP-AMP is obtained at pin no. For the third OP-AMP, inverting input is applied at the pin. 5.The output of the second OP-AMP is obtained at pin no.
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