Datasheet

10 100 1k
Frequency(Hz)
0
-20
-40
-60
-80
-100
-120
-140
THD,THD+N(dB)
10k 100k
High-ResolutionMode
V = 0.5dBFS-
IN
THD+N
THD
-120 -100 -80 -60 -40
InputAmplitude(dBFS)
0
-20
-40
-60
-80
-100
-120
-140
THD,THD+N(dB)
-20 0
High-ResolutionMode
f =1kHz
IN
THD+N
THD
10 100 1k
Frequency(Hz)
0
-20
-40
-60
-80
-100
-120
-140
THD,THD+N(dB)
10k 100k
Low-PowerMode
V = 0.5dBFS-
IN
THD+N
THD
-120 -100 -80 -60 -40
InputAmplitude(dBFS)
0
-20
-40
-60
-80
-100
-120
-140
THD,THD+N(dB)
-20 0
Low-PowerMode
f =1kHz
IN
THD+N
THD
10 100 1k
Frequency(Hz)
0
-20
-40
-60
-80
-100
-120
-140
THD,THD+N(dB)
10k
Low-SpeedMode
V = 0.5dBFS-
IN
THD+N
THD
-120 -100 -80 -60 -40
InputAmplitude(dBFS)
0
-20
-40
-60
-80
-100
-120
-140
THD,THD+N(dB)
-20 0
Low-SpeedMode
THD+N
THD
ADS1274
ADS1278
www.ti.com SBAS367F –JUNE 2007– REVISED FEBRUARY 2011
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, High-Speed mode, AVDD = +5V, DVDD = +1.8V, IOVDD = +3.3V, f
CLK
= 27MHz, VREFP = 2.5V, and
VREFN = 0V, unless otherwise noted.
TOTAL HARMONIC DISTORTION TOTAL HARMONIC DISTORTION
vs FREQUENCY vs INPUT AMPLITUDE
Figure 19. Figure 20.
TOTAL HARMONIC DISTORTION TOTAL HARMONIC DISTORTION
vs FREQUENCY vs INPUT AMPLITUDE
Figure 21. Figure 22.
TOTAL HARMONIC DISTORTION TOTAL HARMONIC DISTORTION
vs FREQUENCY vs INPUT AMPLITUDE
Figure 23. Figure 24.
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