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LM741C-MWC Datasheet(PDF) 9 Page - Texas Instruments |
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LM741C-MWC Datasheet(HTML) 9 Page - Texas Instruments |
9 / 18 page ![]() LM741 - + V- V+ +Vsupply R1 = 4.7k Vinput Output R2 = 4.7k -Vsupply LM741 www.ti.com SNOSC25D – MAY 1998 – REVISED OCTOBER 2015 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information The LM741 is a general-purpose amplifier than can be used in a variety of applications and configurations. One common configuration is in a noninverting amplifier configuration. In this configuration, the output signal is in phase with the input (not inverted as in the inverting amplifier configuration), the input impedance of the amplifier is high, and the output impedance is low. The characteristics of the input and output impedance is beneficial for applications that require isolation between the input and output. No significant loading will occur from the previous stage before the amplifier. The gain of the system is set accordingly so the output signal is a factor larger than the input signal. 8.2 Typical Application Figure 1. LM741 Noninverting Amplifier Circuit 8.2.1 Design Requirements As shown in Figure 1, the signal is applied to the noninverting input of the LM741. The gain of the system is determined by the feedback resistor and input resistor connected to the inverting input. The gain can be calculated by Equation 1: Gain = 1 + (R2/R1) (1) The gain is set to 2 for this application. R1 and R2 are 4.7-k resistors with 5% tolerance. 8.2.2 Detailed Design Procedure The LM741 can be operated in either single supply or dual supply. This application is configured for dual supply with the supply rails at ±15 V. The input signal is connected to a function generator. A 1-Vpp, 10-kHz sine wave was used as the signal input. 5% tolerance resistors were used, but if the application requires an accurate gain response, use 1% tolerance resistors. Copyright © 1998–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: LM741 |
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