OPA454 Datasheet, PDF (4/36 Pages) Texas Instruments – High-Voltage (100V), High-Current (50mA) OPERATIONAL AMPLIFIERS, G = 1 Stable

OPA454
SBOS391 – DECEMBER 2007
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 = 4.8kΩ to mid-supply, V_CM = V_OUT = mid-supply, unless otherwise noted.
OPA454
PARAMETER
FREQUENCY RESPONSE⁽⁵⁾
CONDITIONS
MIN
TYP
Gain-Bandwidth Product
GBW
Small-Signal
2.5
Slew Rate
Full-Power Bandwidth⁽⁶⁾
Settling Time: ±0.1%⁽⁷⁾
Settling Time: ±0.01%⁽⁷⁾
Total Harmonic Distortion + Noise⁽⁸⁾
OUTPUT
Voltage Output Swing From Rail⁽⁹⁾
Continuous Current Output, dc
SR G = ±1, V_O = 80V Step, R_L = 3.27kΩ
THD+N
G = ±1, V_O = 20V Step
G = ±5 or ±10, V_O = 80V Step
V_S = +40.6V/–39.6V, G = ±1,
f = 1kHz, V_O = 77.2V_PP
V_O
R_L = 49kΩ, A_OL ≥ 100dB, I_O = 1mA
R_L = 4.8kΩ, A_OL ≥ 100dB, I_O = 10mA
R_L = 1880Ω, A_OL ≥ 80dB, I_O = 26mA
Depends on Circuit Conditions
13
35
3
10
0.0008
(V–) + 1
(V–) + 1
(V–) + 2
See Figure 6
Maximum Peak Current Output, Current
Limit ⁽¹⁰⁾
I_O
+120/–150
Over Temperature
Capacitive Load Drive⁽⁵⁾
Open-Loop Output Impedance
Output Disabled
C_LOAD
R_O
+140/–170
200
See Figure 5
Output Capacitance
18
Feedthrough Capacitance⁽¹¹⁾
150
STATUS FLAG PIN (Referenced to E/D Com)⁽¹²⁾
Status Flag Delay
Enable → Disable
6
Disable → Enable
4
Over-Current Delay⁽¹³⁾
15
Over-Current Recovery Delay⁽¹³⁾
10
Junction Temperature
T_J
Alarm (status flag high)
+150
Return to Normal Operation (status flag low)
Output Voltage⁽⁵⁾
Normal Operation
+130
R_L = 100Ω During Thermal Overdrive,
Alarm
(V+) – 2.5
MAX
(V+) – 1
(V+) – 2
(V+) – 3
E/D Com + 2
UNIT
MHz
V/µs
kHz
µs
µs
%
V
V
V
mA
mA
pF
Ω
pF
fF
µs
µs
µs
µs
°C
°C
V
V
(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) 100kΩ 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.
4
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