Datasheet

LM7321, LM7322
www.ti.com SNOSAW8D –MAY 2008–REVISED MARCH 2013
Figure 69. Buffer Amplifier Scope Photo
ESTIMATING THE OUTPUT VOLTAGE SWING
It is important to keep in mind that the steady state output current will be less than the current available when
there is an input overdrive present. For steady state conditions, the Output Voltage vs. Output Current plot
(Typical Performance Characteristics section) can be used to predict the output swing. Figure 70 and Figure 71
show this performance along with several load lines corresponding to loads tied between the output and ground.
In each cases, the intersection of the device plot at the appropriate temperature with the load line would be the
typical output swing possible for that load. For example, a 1 kΩ load can accommodate an output swing to within
250 mV of V
−
and to 330 mV of V
+
(V
S
= ±15V) corresponding to a typical 29.3 V
PP
unclipped swing.
Figure 70. Output Sourcing Characteristics with Load Lines
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