OPA378_1 Datasheet, PDF (8/24 Pages) Texas Instruments – Low-Noise, 900kHz, RRIO, Precision OPERATIONAL AMPLIFIER Zerø-Drift Series

OPA378
OPA2378
SBOS417C – JANUARY 2008 – REVISED JUNE 2009 ..................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, R_L = 10kΩ, V_S = +5.5V and V_OUT = V_S/2, unless otherwise noted.
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.
OPEN-LOOP OUTPUT IMPEDANCE vs FREQUENCY
10k
1k
I_O = 0A
100
10
1
0.1
1
I_O = 400mA
I_O = 2mA
10
100
1k
10k 100k
1M
Frequency (Hz)
Figure 23.
Time (20ms/div)
Figure 22.
INPUT BIAS CURRENT vs
INPUT DIFFERENTIAL VOLTAGE
50
Normal Operating Range
40
(see the Input Differential
30
Voltage section in the
Applications Information)
20
10
0
-10
-20
-30
Over-Driven Condition
-40
Over-Driven Condition
-50
-1V -800 -600 -400 -200 0 200 400 600 800 1V
Input Differential Voltage (mV)
Figure 24.
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