THS4521 Datasheet, PDF (46/65 Pages) Texas Instruments – VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER

THS4521, THS4522, THS4524
SBOS458H – DECEMBER 2008 – REVISED JUNE 2015
9.2.1.3 Application Curves
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THS4521 and PCM4204 THD+N
vs FREQUENCY (No Weighting)
-95
-97
-99
-101
-103
-105
-107
-109
-111
-113
-115
0
100
1k
Frequency (Hz)
10 k 20 k
Figure 82. THS4521 and PCM4204: Thd+N Versus
Frequency With No Weighting
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
0
THS4521 and PCM4204
1-kHz FFT
100
1k
Frequency (Hz)
10 k 20 k
Figure 83. THS4521 and PCM4204 1-kHz FFT
THS4521 and PCM4204 THD+N
vs FREQUENCY (No Weighting, at Higher Gains)
-95
-97
-99
-101
-103
G=5
G=2
-105 _{G = 1}
-107
-109
-111
-113
-115
0
100
1k
10 k 20 k
Frequency (Hz)
Figure 84. THS4521 and PCM4204: Thd+N Versus Frequency With No Weighting at Higher Gains
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