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LM741C-MWC Datasheet(PDF) 8 Page - Texas Instruments |
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LM741C-MWC Datasheet(HTML) 8 Page - Texas Instruments |
8 / 18 page ![]() LM741 SNOSC25D – MAY 1998 – REVISED OCTOBER 2015 www.ti.com 7.4 Device Functional Modes 7.4.1 Open-Loop Amplifier The LM741 can be operated in an open-loop configuration. The magnitude of the open-loop gain is typically large thus for a small difference between the noninverting and inverting input terminals, the amplifier output will be driven near the supply voltage. Without negative feedback, the LM741 can act as a comparator. If the inverting input is held at 0 V, and the input voltage applied to the noninverting input is positive, the output will be positive. If the input voltage applied to the noninverting input is negative, the output will be negative. 7.4.2 Closed-Loop Amplifier In a closed-loop configuration, negative feedback is used by applying a portion of the output voltage to the inverting input. Unlike the open-loop configuration, closed loop feedback reduces the gain of the circuit. The overall gain and response of the circuit is determined by the feedback network rather than the operational amplifier characteristics. The response of the operational amplifier circuit is characterized by the transfer function. 8 Submit Documentation Feedback Copyright © 1998–2015, Texas Instruments Incorporated Product Folder Links: LM741 |
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