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LM324A bảng dữ liệu(PDF) 12 Page - Texas Instruments |
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LM324A bảng dữ liệu(HTML) 12 Page - Texas Instruments |
12 / 40 page Vsup+ + VOUT RF VIN RI Vsup- LM224K, LM224KA, LM324, LM324A, LM324K, LM324KA, LM2902 LM124, LM124A, LM224, LM224A, LM2902V, LM2902K, LM2902KV, LM2902KAV SLOS066W – SEPTEMBER 1975 – REVISED MARCH 2015 www.ti.com 9 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. 9.1 Application Information The LMx24 and LM2902 operational amplifiers are useful in a wide range of signal conditioning applications. Inputs can be powered before VCC for flexibility in multiple supply circuits. 9.2 Typical Application A typical application for an operational amplifier in an inverting amplifier. This amplifier takes a positive voltage on the input, and makes it a negative voltage of the same magnitude. In the same manner, it also makes negative voltages positive. Figure 9. Application Schematic 9.2.1 Design Requirements The supply voltage must be chosen such that it is larger than the input voltage range and output range. For instance, this application will scale a signal of ±0.5 V to ±1.8 V. Setting the supply at ±12 V is sufficient to accommodate this application. 9.2.2 Detailed Design Procedure Determine the gain required by the inverting amplifier using Equation 1 and Equation 2: (1) (2) Once the desired gain is determined, choose a value for RI or RF. Choosing a value in the kilohm range is desirable because the amplifier circuit will use currents in the milliamp range. This ensures the part will not draw too much current. This example will choose 10 k Ω for RI which means 36 kΩ will be used for RF. This was determined by Equation 3. (3) 12 Submit Documentation Feedback Copyright © 1975–2015, Texas Instruments Incorporated Product Folder Links: LM224K LM224KA LM324 LM324A LM324K LM324KA LM2902 LM124 LM124A LM224 LM224A LM2902V LM2902K LM2902KV LM2902KAV |
Số phần tương tự - LM324A |
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Mô tả tương tự - LM324A |
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