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| LMC6484 Datasheet, PDF (24/45 Pages) National Semiconductor (TI) – CMOS Quad Rail-to-Rail Input and Output Operational Amplifier | |||
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LMC6484
SNOS675C â AUGUST 2000 â REVISED SEPTEMBER 2015
Feature Description (continued)
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Figure 46. A ±7.5V Input Signal Greatly Exceeds the 3-V
Supply in Figure 47 Causing No Phase Inversion Due to RI
Applications that exceed this rating must externally limit the maximum input current to ±5 mA with an input
resistor as shown in Figure 47.
Figure 47. RI Input Current Protection for Voltages Exceeding the Supply Voltage
7.3.3 Rail-to-Rail Output
The approximated output resistance of the LMC6484 is 180-Ω sourcing and 130-Ω sinking at VS = 3 V and 110-Ω
sourcing and 83-Ω sinking at VS = 5 V. Using the calculated output resistance, maximum output voltage swing
can be estimated as a function of load.
7.4 Device Functional Modes
The LMC6482 may be used in applications where each amplifier channel is used independently, or in
applications in which the channels are cascaded. See Typical Application for more information.
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