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EL8100ISZ Datasheet(PDF) 11 Page - Intersil Corporation |
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EL8100ISZ Datasheet(HTML) 11 Page - Intersil Corporation |
11 / 14 page 11 All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN7103.9 September 14, 2010 Single Supply Video Line Driver The EL8100, EL8101 are wideband rail-to-rail output op amplifiers with large output current, excellent dG, dP, and low distortion that allow them to drive video signals in low supply applications. Figure 31 is the single supply non-inverting video line driver configuration and Figure 32 is the inverting video ling driver configuration. The signal is AC-coupled by C1. R1 and R2 are used to level shift the input and output to provide the largest output swing. RF and RG set the AC gain. C2 isolates the virtual ground potential. RT and R3 are the termination resistors for the line. C1, C2 and C3 are selected big enough to minimize the droop of the luminance signal. FIGURE 30. ENABLE SIGNAL 0V -0.5V -1.5V -2.5V 1V 0V M = 50ns/DIV A ENABLE B -1V FIGURE 31. 5V SINGLE SUPPLY NON INVERTING VIDEO LINE DRIVER 5V RF VOUT VIN 75 Ω + - 75 Ω 1k Ω 75 Ω C3 470µF R3 C1 47µF RT 10k 10k R2 R1 1k Ω RG C2 220µF FIGURE 32. 5V SINGLE SUPPLY INVERTING VIDEO LINE DRIVER 5V RF VOUT VIN 75 Ω - + 75 Ω 500 Ω 75 Ω C3 470µF R3 C1 47µF RT 10k 10k R2 R1 1k Ω RG C2 220µF 5V FIGURE 33. VIDEO LINE DRIVER FREQUENCY RESPONSE 5 4 3 2 1 0 -1 -2 -3 -4 -5 100K 1M 10M 100M 200M FREQUENCY (Hz) AV = -2 AV = 2 EL8100, EL8101 |
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