LM8261 datasheet(19/29 Pages) TI

Part #	LM8261

Description	LM8261 Single RRIO, High Output Current & Unlimited Cap Load Op Amp in SOT-23-5

PDF	29 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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LM8261

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SNOS469I – APRIL 2000 – REVISED MARCH 2013

Figure 57. Output Sinking Characteristics with Load Lines

TFT APPLICATIONS

Figure 58 below, shows a typical application where the LM8261 is used as a buffer amplifier for the VCOM signal

employed in a TFT LCD flat panel:

Figure 58. VCOM Driver Application Schematic

Figure 59 shows the time domain response of the amplifier when used as a VCOM buffer/driver with VREF at

ground. In this application, the Op Amp loop will try and maintain its output voltage based on the voltage on its

non-inverting input (VREF) despite the current injected into the TFT simulated load. As long as this load current is

within the range tolerable by the LM8261 (45mA sourcing and 65mA sinking for ±5V supplies), the output will

settle to its final value within less than 2µs.

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LM8261 Datasheet(PDF) 19 Page - Texas Instruments