OPA378_15 Datasheet, PDF (8/29 Pages) Texas Instruments – Low-Noise, 900kHz, RRIO,Precision OPERATIONAL AMPLIFIER Zerø-Drift Series

OPA378
OPA2378
SBOS417D – JANUARY 2008 – REVISED OCTOBER 2009
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, R_L = 10kΩ, V_S = +5.5V and V_OUT = V_S/2, unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
1
60
50
0.1
40
0.01
0.001
0.0001
10
100
1k
Frequency (Hz)
Figure 17.
30
Gain = +1V/V, -1V/V
R = 10kW
20
10 ^{Gain = -1V/V}
R = 5kW
0
10k
1
10
100
Load Capacitance (pF)
Figure 18.
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1k
POSITIVE OVER-VOLTAGE RECOVERY
10kW
0
+2.5V
1kW
OPA378
RL
-2.5V
Output
NEGATIVE OVER-VOLTAGE RECOVERY
10kW
+2.5V
1kW
0
OPA378
RL
-2.5V
Output
0
Input
Input
0
Time (10ms/div)
Figure 19.
SMALL-SIGNAL STEP RESPONSE
G = +1
Time (4ms/div)
Figure 20.
LARGE-SIGNAL STEP RESPONSE
V_S = ±2.75V
V_IN
V_OUT
Time (5ms/div)
Figure 21.
Time (20ms/div)
Figure 22.
8
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