OPA378_15 Datasheet, PDF (9/29 Pages) Texas Instruments – Low-Noise, 900kHz, RRIO,Precision OPERATIONAL AMPLIFIER Zerø-Drift Series

OPA378
OPA2378
www.ti.com
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.
OPEN-LOOP OUTPUT IMPEDANCE vs FREQUENCY
10k
1k
I_O = 0A
100
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
-10
1
0.1
1
I_O = 400mA
I_O = 2mA
10
100
1k
10k 100k
1M
Frequency (Hz)
-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 23.
Figure 24.
OPA2378 CHANNEL SEPARATION
-160
-140
-120
-100
-80
-60
-40
-20
0
1k
10k 100k
1M
10M 100M 1G
Frequency (Hz)
Figure 25.
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