Datasheet


     
  
SLOS310B − DECEMBER 2000 − REVISED SEPTEMBER 2006
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
Figure 20 shows the TLV4120 amplifier driving both ends of the load. There are several potential benefits to
this differential drive configuration but initially consider power to the load. The differential drive to the load means
that as one side is slewing up, the other side is slewing down, and vice versa. This doubles the voltage swing
on the load as compared to a ground-referenced load, quadrupling the power delivered to the load.
V
DD
−1
V
DD
2x V
O(PP)
V
O(PP)
−V
O(PP)
Figure 20. Bridge-Tied Load Configuration
component selection
Bias
Control
6
5
7
V
O
+
V
DD
1
2
4
V
DD
/2
IN −
V
DD
/2
SHDN
V
O
−8
GND
3 IN+
−
+
−
+
A1
A2
C
B
R
S
C
S
C
PS
R
F
R
L
V
O
V
IN
1 = Off
0 = On
Figure 21. Driving a Capacitive Load