OPA211-HT Datasheet, PDF (8/26 Pages) Texas Instruments – 1.1 nV/√Hz Noise, Low Power, Precision Operational Amplifier

OPA211-HT
SBOS481B – JULY 2009 – REVISED APRIL 2012
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TYPICAL CHARACTERISTICS
At T_A = 25°C, V_S = ±18 V, and R_L = 10 kΩ, unless otherwise noted.
INPUT VOLTAGE NOISE DENSITY
vs FREQUENCY
100
INPUT CURRENT NOISE DENSITY
vs FREQUENCY
100
10
10
1
0.1
1
10
100
1k
10k
100k
Frequency (Hz)
Figure 1.
1
0.1
1
10
100
1k
10k
100k
Frequency (Hz)
Figure 2.
0.001
THD+N RATIO vs FREQUENCY
V_S = ±15V
R_L = 600W
0.0001
G = -1
V_OUT = 3V_RMS
G = 11
V_OUT = 3V_RMS
G=1
V_OUT = 3V_RMS
-100
-120
0.00001
10
100
1k
Frequency (Hz)
Figure 3.
-140
10k 20k
THD+N RATIO vs OUTPUT VOLTAGE AMPLITUDE
0.1
-60
0.01
0.001
G = 11
-80
-100
0.0001
G=1
0.00001
0.000001
V_S = ±15V
R_L = 600W
1kHz Signal
0.01
0.1
1
G = -1
10
Output Voltage Amplitude (V_RMS)
Figure 4.
-120
-140
-160
100
0.1-Hz TO 10-Hz NOISE
Time (1s/div)
Figure 5.
8
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