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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.
,
CURRENT SOURCE REFERENCE VOLTAGE vs
TEMPERATURE (I = 8mA)
CURRENT SOURCE REFERENCE VOLTAGE vs
POWER SUPPLY (I = 8mA)
499.2
499.1
499.0
498.9
498.8
498.7
498.6
498.5
498.4
498.3
498.2
499.2
499.1
499.0
498.9
498.8
498.7
498.6
498.5
498.4
498.3
498.2
−
−
20
40
0
+20
+40
+60
+80
4.00 4.25
4.50 4.75 5.00 5.25 5.50 5.75 6.00
VDD (V)
_
Temperature ( C)
Figure 32.
Figure 33.
RMS NOISE vs
INPUT VOLTAGE LEVEL
10
9
8
7
6
5
4
3
2
1
0
−
−
−
−
−
50 25
125 100 75
0
25
50
75 100 125
Differential Input Voltage (V)
Figure 34.
14
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