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SBAS348A–MARCH 2005–REVISED MARCH 2005
TYPICAL CHARACTERISTICS (continued)
At 25°C, AVDD = BVDD = +5V, VREF = internal +2.5V, Mode 3, MCLK input = 20MHz, differential input voltage = 200mVPP
common-mode voltage = 1.4V, and 16-bit Sinc3 filter with OSR = 256, unless otherwise noted.
,
SIGNAL-TO-NOISE RATIO vs
TEMPERATURE
SIGNAL-TO-NOISE AND DISTORTION vs
TEMPERATURE
85
84
83
82
81
80
79
78
85
84
83
82
81
80
79
78
M0
M3
M3
M0
−
−
−
−
20
40
20
0
+20
+40
+60
+80
40
0
+20
+40
+60
+80
_
_
Temperature ( C)
Temperature ( C)
Figure 12.
Figure 13.
SIGNAL-TO-NOISE RATIO vs
DECIMATION RATIO
EFFECTIVE NUMBER OF BITS vs
DECIMATION RATIO
16
100
90
80
70
60
50
40
30
20
10
0
14
12
10
8
Sincfast
Sinc2
Sinc3
Sinc2
Sinc1
6
Sinc3
4
2
0
1
10
100
1000
1
10
100
1000
Decimation Ratio (OSR)
Decimation Ratio (OSR)
Figure 14.
Figure 15.
10
BB [ BURR-BROWN CORPORATION ]
