Datasheet

OPA454
SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS: V
S
= ± 50V (continued)
Boldface limits apply over the specified temperature range, T
A
= – 40 ° C to +85 ° C.
At T
P
= +25 ° C, R
L
= 4.8k Ω to mid-supply, V
CM
= V
OUT
= mid-supply, unless otherwise noted.
OPA454
PARAMETER CONDITIONS MIN TYP MAX UNIT
FREQUENCY RESPONSE
(5)
Gain-Bandwidth Product GBW Small-Signal 2.5 MHz
Slew Rate SR G = ± 1, V
O
= 80V Step, R
L
= 3.27k Ω 13 V/ µ s
Full-Power Bandwidth
(6)
35 kHz
Settling Time: ± 0.1%
(7)
G = ± 1, V
O
= 20V Step 3 µ s
Settling Time: ± 0.01%
(7)
G = ± 5 or ± 10, V
O
= 80V Step 10 µ s
V
S
= +40.6V/ – 39.6V, G = ± 1,
Total Harmonic Distortion + Noise
(8)
THD+N 0.0008 %
f = 1kHz, V
O
= 77.2V
PP
OUTPUT
Voltage Output Swing From Rail
(9)
V
O
R
L
= 49k Ω , A
OL
≥ 100dB, I
O
= 1mA (V – ) + 1 (V+) – 1 V
R
L
= 4.8k Ω , A
OL
≥ 100dB, I
O
= 10mA (V – ) + 1 (V+) – 2 V
R
L
= 1880 Ω , A
OL
≥ 80dB, I
O
= 26mA (V – ) + 2 (V+) – 3 V
Continuous Current Output, dc Depends on Circuit Conditions See Figure 6
Maximum Peak Current Output, Current
I
O
+120/ – 150 mA
Limit
(10)
Over Temperature +140/ – 170 mA
Capacitive Load Drive
(5)
C
LOAD
200 pF
Open-Loop Output Impedance R
O
See Figure 5 Ω
Output Disabled
Output Capacitance 18 pF
Feedthrough Capacitance
(11)
150 fF
STATUS FLAG PIN (Referenced to E/D Com)
(12)
Status Flag Delay Enable → Disable 6 µ s
Disable → Enable 4 µ s
Over-Current Delay
(13)
15 µ s
Over-Current Recovery Delay
(13)
10 µ s
Junction Temperature T
J
Alarm (status flag high) +150 ° C
Return to Normal Operation (status flag low) +130 ° C
Output Voltage
(5)
Normal Operation E/D Com + 2 V
R
L
= 100 Ω During Thermal Overdrive,
(V+) – 2.5 V
Alarm
(5) See Typical Characteristic curves.
(6) See typical characteristic curve, Maximum Output Voltage vs Frequency (Figure 12 ).
(7) See the Applications Information section, Settling Time .
(8) Supplies reduced to allow closer swing to rails due to test equipment limitations. See typical characteristic curve Total Harmonic
Distortion + Noise vs Temperature (Figure 30 and Figure 31 ) for additional power levels.
(9) See typical characteristic curve, Output Voltage Swing vs Output Current (Figure 11 ).
(10) Measured using low-frequency ( < 10Hz) ± 49V square wave. See typical characteristic curve, Current Limit vs Temperature (Figure 24 ).
(11) Measured using Figure 1 .
(12) 100k Ω pull-up resistor to (V+). E/D common to (V – ). Status flag indicates an over temperature or over-current condition.
(13) See Typical Characteristic curves for current limit behavior.
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