+

-

2k

1:1

2k

Twisted

Pair Line

2k

100

1/2

LM7372

+

-

50

50

20uF

0.1uF

+

1/2

LM7372

V-

V+

0.1uF

5.1k

5.1k

1

3

2

8

7

6

5

4

0.1uF

20uF

0.1uF

+

LM7372

www.ti.com

SNOS926F – MAY 1999 – REVISED SEPTEMBER 2014

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The LM7372 is a high speed dual operational amplifier with a very high slew rate and very low distortion. Like

many other op amps, it is used in conventional voltage feedback amplifier applications, and has a class AB

output stage in order to deliver high currents to low impedance loads. However, it draws a low quiescent supply

current in most situations since the supply current increases when necessary to keep up with large output swing

and/or high frequency (see High Frequency/Large Signal Swing Considerations). For most op amps in typical

applications, this topology means that internal power dissipation is rarely an issue, even with the trend to smaller

surface mount packages. However, TI has designed the LM7372 for applications where there are significant

levels of power dissipation, and a way to effectively remove the internal heat generated by this power dissipation

is needed in order to maintain the semiconductor junction temperature at acceptable levels. This is particularly

important in environments with elevated ambient temperatures.

8.2 Typical Application

Figure 23. Split Supply Application (SO PowerPAD)

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