LM4862 datasheet(4/18 Pages) TI

4 / 18 page

LM4862

SNAS102F – MAY 1997 – REVISED MAY 2013

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External Components Description

(Figure 1)

Components

Functional Description

Inverting input resistance which sets the closed-loop gain in conjunction with Rf. This resistor also forms a high pass filter

with Ci at fc = 1/(2πRiCI).

Input coupling capacitor which blocks the DC voltage at the amplifier's input terminals. Also creates a highpass filter with Ri

at fc = 1/(2πRiCi). Refer to PROPER SELECTION OF EXTERNAL COMPONENTS for an explanation of how to determine

the value of Ci.

Feedback resistance which sets the closed-loop gain in conjunction with Ri.

Supply bypass capacitor which provides power supply filtering. Refer to POWER SUPPLY BYPASSING for proper

placement and selection of the supply bypass capacitor.

Bypass pin capacitor which provides half-supply filtering. Refer to PROPER SELECTION OF EXTERNAL COMPONENTS

for proper placement and selection of the half-supply bypass capacitor.

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