ADS7863_08 Datasheet, PDF (12/40 Pages) Texas Instruments – Dual, 2MSPS, 12-Bit, 2 + 2 or 3 + 3 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER

ADS7863
SBAS383B – JUNE 2007 – REVISED MARCH 2008
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TYPICAL CHARACTERISTICS (continued)
Over entire supply voltage range, V_REF = 2.5V (internal), f_CLK = 32MHz, and t_DATA = 2MSPS, unless otherwise noted.
-76
-78
-80
-82
-84
-86
-88
-90
-92
20
TOTAL HARMONIC DISTORTION
vs INPUT SIGNAL FREQUENCY
AV_DD = 5V
AV_DD = 2.7V
40 60 80 100 120 140 160 180 200
f_IN (kHz)
Figure 21.
SPURIOUS-FREE DYNAMIC RANGE
vs INPUT SIGNAL FREQUENCY
92
90
AV_DD = 2.7V
88
86
AV_DD = 5V
84
82
80
78
76
20 40 60 80 100 120 140 160 180 200
f_IN (kHz)
Figure 23.
ANALOG SUPPLY CURRENT
vs TEMPERATURE
8
7
AV_DD = 5V
6
5 _{AVDD = 2.7V}
4
3
2
1
0
-40 -25 -10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 25.
TOTAL HARMONIC DISTORTION
vs TEMPERATURE
-78
-80
AV_DD = 2.7V
-82
-84
AV_DD = 5V
-86
-88
-90
-40 -25 -10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 22.
SPURIOUS-FREE DYNAMIC RANGE
vs TEMPERATURE
90
88
AV_DD = 5V
86
84
AV_DD = 2.7V
82
80
-40 -25 -10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 24.
DIGITAL SUPPLY CURRENT
vs TEMPERATURE
1.0
0.9
0.8
BV_DD = 3.3V
0.7
0.6
0.5
0.4
0.3
BV_DD = 2.7V
0.2
0.1
0
-40 -25 -10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 26.
12
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