ADS8881 Datasheet, PDF (13/44 Pages) Texas Instruments – 18-Bit, 1-MSPS, Serial Interface, microPower, Miniature, True-Differential Input, SAR Analog-to-Digital Converter

ADS8881
www.ti.com
SBAS547A – MAY 2013 – REVISED JULY 2013
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, AVDD = 3 V, DVDD = 3 V, V_REF = 5 V, and f_SAMPLE = 1 MSPS, unless otherwise noted.
102
18
101
17.5
100
17
99
16.5
98
16
97
15.5
96
15
95
14.5
94
-40
-15
10
35
60
85
Free-Air Temperature (^oC)
C01
Figure 24. SINAD vs TEMPERATURE
14
-40
-15
10
35
60
85
Free-Air Temperature (^oC)
C02
Figure 25. ENOB vs TEMPERATURE
-109
-111
-113
-115
-117
-119
-121
-123
-125
-40
-15
10
35
60
85
Free-Air Temperature (^oC)
C02
Figure 26. THD vs TEMPERATURE
106
104
102
100
98
96
94
92
90
0
20
40
60
80
Input Frequency (kHz)
Figure 28. SNR vs INPUT FREQUENCY
100
C02
126
124
122
120
118
116
114
112
110
-40
-15
10
35
60
85
Free-Air Temperature (^oC)
C02
Figure 27. SFDR vs TEMPERATURE
101
100
99
98
97
96
95
94
93
0
20
40
60
80
100
Input Frequency (kHz)
C02
Figure 29. SINAD vs INPUT FREQUENCY
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