ADS7886_14 Datasheet, PDF (9/24 Pages) Texas Instruments – 12-Bit, 1-MSPS, MICRO-POWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTERS

ADS7886
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SIGNAL-TO-NOISE RATIO
vs
INPUT FREQUENCY
73
72.5
72
71.5
71
70.5
70
69.5
fs = 1 MSPS,
VDD = 5 V,
T_A = 25^oC
69
1
10
100
f_I − Input Frequency − kHz
Figure 8.
SLAS492A – SEPTEMBER 2005 – REVISED NOVEMBER 2009
TYPICAL CHARACTERISTICS
SIGNAL-TO-NOISE RATIO
vs
SUPPLY VOLTAGE
73
72.5
72
71.5
71
70.5
70
69.5
fs = 1 MSPS,
fI = 100 kHz,
T_A = 25^oC
1000
69
2.35
3.075
3.8
4.525
5.25
V_DD − Supply Voltage − V
Figure 9.
SIGNAL-TO-NOISE RATIO
vs
FREE-AIR TEMPERATURE
73
72.5
5V
72
71.5
71
2.35 V
70.5
70
fs = 1 MSPS,
fI = 100 kHz
69.5
69
−40
15
70
125
T_A − Free-Air Temperature − ^oC
Figure 10.
TOTAL HARMONIC DISTORTION
vs
INPUT FREQUENCY
−84
−85 ^{fS = 1 MSPS,}
T_A 25^oC,
−86 V_DD = 5 V
−87
−88
−89
−90
−91
−92
−93
−94
1
10
100
f_i − Input Frequency − kHz
Figure 11.
TOTAL HARMONIC DISTORTION
vs
SUPPLY VOLTAGE
-80
fs = 1 MSPS,
fI = 100 kHz,
-82 T_A = 25^oC
-84
-86
-88
-90
2.35
3.075
3.8
4.525
5.25
V_DD − Supply Voltage − V
Figure 12.
TOTAL HARMONIC DISTORTION
vs
FREE-AIR TEMPERATURE
-80
-81 ^{fs = 1 MSPS,}
fI = 100 kHz
-82
-83
2.35 V
-84
-85
-86
5V
-87
-88
-89
-90
−40
15
70
125
T_A − Free-Air Temperature − ^oC
Figure 13.
SPURIOUS FREE DYNAMIC RANGE
vs
INPUT FREQUENCY
87
86.5
86
85.5
85
84.5
84
fs = 1 MSPS,
VDD = 5 V,
T_A = 25^oC
83.5
83
82.5
82
1
10
100
f_i − Input Frequency − kHz
Figure 14.
SPURIOUS FREE DYNAMIC RANGE
vs
SUPPLY VOLTAGE
87
86.5
86
85.5
85
84.5
84
83.5
83
82.5
fs = 1 MSPS,
fI = 100 kHz,
T_A = 25^oC
82
2.35
3.075
3.8
4.525
5.25
V_DD − Supply Voltage − V
Figure 15.
SPURIOUS FREE DYNAMIC RANGE
vs
SUPPLY VOLTAGE
86.6
86.4
5V
86.2
fs = 1 MSPS,
86 _{fI = 100 kHz,}
T_A = 25^oC
85.8
85.6
85.4
2.35 V
85.2
−40
15
70
125
T_A − Free-Air Temperature − ^oC
Figure 16.
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