OPA454 Datasheet, PDF (12/36 Pages) Texas Instruments – High-Voltage (100V), High-Current (50mA) OPERATIONAL AMPLIFIERS, G = 1 Stable

OPA454
SBOS391 – DECEMBER 2007
TYPICAL CHARACTERISTICS (continued)
At T_P = +25°C, V_S = ±50V, and R_L = 4.8kΩ connected to GND, unless otherwise noted.
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30
25
20
15
10
5
0
-5
0
GAIN PEAKING vs C_LOAD
(G = +2, R_F = 10kΩ, V_CM = 0V)
C_F = 0pF
C_F = 2.5pF
C_F = 5pF
T_C = -55°C
T_C = +25°C
T_C = +85°C
T_C = +125°C
100
200
300
400
500
C_LOAD (pF)
Figure 38.
GAIN OF +2 vs FREQUENCY⁽⁴⁾
10
T_A = +25°C
8
C_L = 500pF
6
4
C_L = 50pF
2
0
-2
C_F = 0pF
-4
C_F = 2.5pF
C_F = 5pF
-6
10k
100k
1M
10M
Frequency (Hz)
Figure 40.
GAIN OF +1 vs FREQUENCY⁽³⁾
10
T_A = +25°C
8
C_L = 200pF
6
C_L = 100pF
4
2
0
-2
-4
-6
10k
R_F = 10kW, C_F = 50pF
R_F = 0W
100k
C_L = 50pF
1M
10M
Frequency (Hz)
Figure 39.
SETTLING TIME, POSITIVE STEP
(20V Step, Gain = 1, R_F = 10kΩ)⁽⁵⁾⁽⁶⁾
20
0.08
15
0.06
V₁ (Inverting)
10
0.04
5
0.02
V₂ (Noninverting)
0
0
-5
-0.02
-10
-0.04
V_IN
-15
-0.06
-20
-0.08
Time (1ms/div)
Figure 41.
(3) See Application section Unity-Gain Noninverting Configuration.
(4) See Application section Unity-Gain Noninverting Configuration.
(5) See the Settling Time section.
(6) The grid for voltage at V₁ and V₂ is scaled 20mV or 0.1% per division.
12
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