Datasheet

−87
−86
−85
−84
−83
−82
−81
−80
−79
−78
−77
−76
−75
−40 −25 −10 5 20 35 50 65 80 95 110 125
Free-Air Temperature (°C)
Total Harmonic Distortion (dB)
G055
−87
−85
−83
−81
−79
−77
−75
2.5 5 7.5 10 12.5 15
HVDD, Positive High-Voltage Supply (V)
Total Harmonic Distortion (dB)
G056
−87
−86
−85
−84
−83
−82
−81
−80
−79
−78
−77
−76
−75
0 15 30 45 60 75 90 105
f
IN
, Input Frequency (kHz)
Total Harmonic Distortion (dB)
G057
84
84.5
85
85.5
86
86.5
87
87.5
88
2.7 3.2 3.7 4.2 4.7 5.2 5.7
AVDD (V)
Spurious-Free Dynamic Range (dB)
G058
82
82.5
83
83.5
84
84.5
85
85.5
86
86.5
87
87.5
88
±2.5V ±5V ±10V 0−5V 0−10V
Signal Range
Spurious-Free Dynamic Range (dB)
G059
82
82.5
83
83.5
84
84.5
85
85.5
86
86.5
87
87.5
88
2 2.2 2.4 2.6 2.8 3
Reference Voltage (V)
Spurious-Free Dynamic Range (dB)
G060
ADS8634
ADS8638
www.ti.com SBAS541A –MAY 2011– REVISED AUGUST 2011
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, internal reference = 2.5V, channel 0, range = ±2.5V, AVDD = 2.7V, DVDD = 1.8V, HVDD = 10V, HVSS
= –10V, and f
SAMPLE
= 1MSPS, unless otherwise noted.
THD vs FREE-AIR TEMPERATURE THD vs POSITIVE HIGH-VOLTAGE SUPPLY
Figure 45. Figure 46.
THD vs INPUT FREQUENCY SFDR vs ANALOG SUPPLY VOLTAGE
Figure 47. Figure 48.
SFDR vs SIGNAL RANGE SFDR vs REFERENCE VOLTAGE
Figure 49. Figure 50.
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