Help me find an analog to the LT1638 low noise operational amplifier.

Help me find an analog to the LT1638 low noise operational amplifier. I'm not an electronics engineer, I don't understand the basic parameters of an op amp.

    •  Analog Employees 
    on Oct 26, 2020 9:41 PM 1 month ago

    Hi Maxim55:  I'm not sure what you mean by an "analog".  Do you mean a similar part or parts?  Do you mean a mathematical equivalent?

    Mathematically, an opamp takes the difference voltage between its two inputs and multiplies it by 1 million or so, and puts that on its output.  But the output voltage is limited by the supply voltages.  In normal usage, the output or some attenuated part of it is fed back to the -input.