TLV2471CDBVT datasheet(15/51 Pages) TI

Part #	TLV2471CDBVT

Description	FAMILY OF 600關A/Ch 2.8MHz RAIL-TO-RAIL INPUT/OUTPUT HIGH-DRIVE OPERATIONAL AMPLIFIERS WITH SHUTDOWN

PDF	51 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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PARAMETER MEASUREMENT INFORMATION

RNULL

APPLICATION INFORMATION

DRIVING A CAPACITIVE LOAD

CLOAD

Input

Output

RNULL

OFFSET VOLTAGE

OO + VIO

1 )

" IIB) RS 1 )

" IIB* RF

−

IIB−

IIB+

TLV2470,, TLV2471

TLV2472, TLV2473

TLV2474, TLV2475, TLV247xA

SLOS232E – JUNE 1999 – REVISED JULY 2007

Figure 41.

When the amplifier is configured in this manner, capacitive loading directly on the output will decrease the

device phase margin leading to high-frequency ringing or oscillations. Therefore, for capacitive loads of greater

than 10pF, it is recommended that a resistor (RNULL) be placed in series with the output of the amplifier, as

shown in Figure 42. A minimum value of 20

Ω should work well for most applications.

Figure 42. Driving a Capacitive Load

The output offset voltage (VOO) is the sum of the input offset voltage (VIO) and both input bias currents (IIB) times

the corresponding gains. The following schematic and formula can be used to calculate the output offset voltage:

Figure 43. Output Offset Voltage Model

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TLV2471CDBVT Datasheet(PDF) 15 Page - Texas Instruments