LM4810 datasheet(6/25 Pages) TI

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LM4810

SNAS125D – FEBRUARY 2001 – REVISED APRIL 2013

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External Components Description

Components

Functional Description (See Figure 1)

The inverting input resistance, along with Rf, set the closed-loop gain. Ri, along with Ci, form a high pass filter with fc =

1. Ri

1/(2

πRiCi).

The input coupling capacitor blocks DC voltage at the amplifier's input terminals. Ci, along with Ri, create a highpass filter

2. Ci

with fc = 1/(2πRiCi). Refer to SELECTING PROPER EXTERNAL COMPONENTS, for an explanation of determining the

value of Ci.

3. Rf

The feedback resistance, along with Ri, set closed-loop gain.

This is the supply bypass capacitor. It provides power supply filtering. Refer to Application Information for proper placement

4. CS

and selection of the supply bypass capacitor.

This is the BYPASS pin capacitor. It provides half-supply filtering. Refer to SELECTING PROPER EXTERNAL

5. CB

COMPONENTS for information concerning proper placement and selection of CB.

This is the output coupling capacitor. It blocks the DC voltage at the amplifier's output and forms a high pass filter with RL at

6. CO

fO = 1/(2πRLCO)

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LM4810 Datasheet(PDF) 6 Page - Texas Instruments