OPA141_1 Datasheet, PDF (10/25 Pages) Texas Instruments – Single-Supply, 10MHz, Rail-to-Rail Output,Low-Noise, JFET Amplifier

OPA141
OPA2141
OPA4141
SBOS510B – MARCH 2010 – REVISED MAY 2010
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, V_S = ±18V, R_L = 2kΩ connected to midsupply, V_CM = V_OUT = midsupply, unless otherwise noted.
QUIESCENT CURRENT vs SUPPLY VOLTAGE
GAIN AND PHASE vs FREQUENCY
2.00
140
180
1.75
120
Gain
1.50
100
135
1.25
80
1.00
60
90
0.75
40
Phase
0.50
20
45
0.25
Specified Supply-Voltage Range
0
0 4 8 12 16 20 24 28 32 36
Supply Voltage (V)
0
-20
0
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
Figure 14.
Figure 15.
CLOSED-LOOP GAIN vs FREQUENCY
30
20
G = +10
10
G = +1
0
-10
-20
100k
G = -1
1M
10M
Frequency (Hz)
Figure 16.
100M
OPEN-LOOP GAIN vs TEMPERATURE
0
10kW Load
-0.2
-0.4
-0.6
2kW Load
-0.8
-1.0
-1.2
-1.4
-75 -50 -25
0 25 50 75
Temperature (°C)
Figure 17.
100 125 150
OPEN-LOOP OUTPUT IMPEDANCE vs FREQUENCY
1k
100
10
1
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
Figure 18.
SMALL-SIGNAL OVERSHOOT
vs CAPACITIVE LOAD (100mV Output Step)
40
35
R_OUT = 0W
30
+15V
OPA141
-15V
G = +1
ROUT
RL
CL
25
20
R_OUT = 24W
15
10
R_OUT = 51W
5
0
0 100 200 300 400 500 600 700 800 900 1000
Capacitive Load (pF)
Figure 19.
10
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