OPA140 Datasheet, PDF (10/44 Pages) Texas Instruments – 11-MHz JFET Op Amp

OPA140, OPA2140, OPA4140
SBOS498B – JULY 2010 – REVISED NOVEMBER 2015
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Typical Characteristics (continued)
at T_A = 25°C, V_S = ±18 V, R_L = 2 kΩ connected to midsupply, V_CM = V_OUT = midsupply, unless otherwise noted.
180
0.12
CMRR
160
0.10
140
120
0.08
100
-PSRR
0.06
80
+PSRR
60
0.04
40
0.02
20
0
1 10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
0
-75 -50 -25
0 25 50 75 100 125 150
Temperature (°C)
Figure 7. CMRR and PSRR vs Frequency
(Referred to Input)
Figure 8. Common-Mode Rejection Ratio vs Temperature
100
10
Time (1s/div)
1
0.1
1
10
100
1k
10k
100k
Frequency (Hz)
Figure 9. 0.1-Hz to 10-Hz Noise
0.001
V_OUT = 3V_RMS
BW = 80kHz
R_L = 2kW
G = -1
-100
0.0001
-120
G = +1
0.00001
10
100
1k
Frequency (Hz)
-140
10k 20k
Figure 10. Input Voltage Noise Density vs Frequency
0.01
BW = 80kHz
1kHz Signal
R_L = 2kW
-80
G = -1
G = +1
0.001
-100
0.0001
NOTE: Increase at low signal levels is a result
0.00001
of increased % contribution of noise.
0.1
1
10
Frequency (Hz)
-120
-140
100
Figure 11. THD+N Ratio vs Frequency
Figure 12. THD+N Ratio vs Output Amplitude
10
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