Datasheet

R
LOAD
7.5kW
10kW
OPA454
A
1
+120V
+100V
10kW
OPA454
A
2
190kW10kW
OPA454
A
3
-100V
-100V
10kW
OPA454
A
4
+120V
10kW
OPA454
A
5
200kW 10kW
OPA454
A
6
-100V
100kW
100kW
100kW
100kW
-100V
100kW
100kW
+100V
100kW
100kW
(+97V, 98V)- ( +97V)-98V,
V
IN
V
LOAD
PP
( 195V,390V )±
V+
V+
V+
V-
V-
V-
V-
V+
V-
V-
V+
V+
Time(10 s/div)m
200
150
100
50
0
-50
-100
-150
-200
V
(V)
O
UT
6
4
2
0
-2
-4
-6
V (V)
IN
V
IN
V
OUT
Time(20 s/div)m
0
V (V)
OUT
V
LOAD
200
-200
150
100
50
-50
-100
-150
OPA454
www.ti.com ....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008
Figure 79. Output Voltage Boost With ± 195V (390V
PP
) Across Bridge-Tied Load (6 Op Amps, see
Figure 80 and Figure 81 )
Figure 81. 7.5k Ω Load
Figure 80. 390V
PP
Across 7.5k Ω Load
G = +20, 6 OPA454s, 100V Supplies
20kHz, Uses 6 OPA454s, 100V Supplies
(Note SR of 34V/ µ s, which is significantly higher
than the specified 13V/ µ s due to tracking of the
power-supply voltage)
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