Datasheet

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SBAS306F − NOVEMBER 2004 − REVISED OCTOBER 2007
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13
TYPICAL CHARACTERISTICS (continued)
T
A
= 25°C, AVDD = 5V, DVDD = 1.8V, f
CLK
= 27MHz, VREFP = 2.5V, VREFN = 0V, unless otherwise noted.
Figure 31
NOISE vs AVDD
4.75 4.85 5.154.95 5.05
AVDD (V)
20
18
16
14
12
10
8
6
4
2
0
RMS Noise (
µ
V)
5.25
High−Resolution
High−Speed
Low−Power
Figure 32
NOISE vs DVDD
1.6 2.0 2.21.8 3.2 3.42.4 2.6 2.8 3.0
DVDD (V)
20
18
16
14
12
10
8
6
4
2
0
RMS Noise (
µ
V)
3.6
High−Resolution
High−Speed
Low−Power
Figure 33
NOISE vs TEMPERATURE
−
40
−
20 0 20 40 60 80 100
Temperature (
_
C)
12
10
8
6
4
2
0
RMS Noise (
µ
V)
120125
High−Resolution
High−Speed
Low−Power
Figure 34
NOISE vs INPUT LEVEL
−
2.5
−
2.0
−
1.5
−
1.0 1.51.0
−
0.5 0.50
V
IN
(V)
20
18
16
14
12
10
8
6
4
2
0
RMS Noise (
µ
V)
2.52.0
High−Resolution
High−Speed
Low−Power
Figure 35
AVDD CURRENT vs TEMPERATURE
−
40
−
20 0 20 40 60 80 100
Temp erature (
_
C)
22
20
18
16
14
12
10
8
6
4
2
0
AVDD Current (mA)
120125
High−Speed and
High−Resolution
Low−Power
Figure 36
DVDD CURRENT vs TEMPERATURE
−
40
−
20 0 20 40 60 80 100
Temperature (
_
C)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
DVDD Current (mA)
120 125
Low−Power
High−Resolution
High−Speed