Datasheet

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SBAS255C − JUNE 2004 − REVISED APRIL 2009
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7
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, characterization done with Range 5 (250pC), AVDD = +5V, DVDD = 3V, V
REF
= +4.096V, Low Power Mode: T
INT
= 400µs and CLK = 4MHz, unless
otherwise noted.
I
B
vs TEMPERATURE
25 35 45 55 65 75 85
Temperature (
_
C)
I
B
(pA)
10
1
0.1
0.01
All Ranges
ANALOG SUPPLY CURRENT vs TEMPERATURE
14
12
10
8
6
4
2
0
−
40
−
15 10 35 60 85
Temperature (
_
C)Temperature (
_
C)
Current (mA)
Low−Power Mode
POWER CONSUMPTION HISTOGRAM
40
35
30
25
20
15
10
5
0
12.00 12.25 12.50 12.75 13.00 13.25 13.50 13.75 14.00 14.25 14.50 14.75 15.00 15.25 15.50 15.75 16.00
Power per Channel (mW)
Occurences (%)
Low−Power Mode
Data collected
from multiple lots.
OFFSET DRIFT vs TEMPERATURE
25 35 45 55 65 75 85
Temperature (
_
C)
Offset Drift (ppm of FSR)
100
50
0
−
50
−
100
DIGITAL SUPPLY CURRENT vs TEMPERATURE
1.2
1.0
0.8
0.6
0.4
0.2
0
−
40
−
15 10 35 60 85
Temperature (
_
C)
Current (mA)
DVDD = 3V
DVDD = 5V
Low Power−Mode
OFFSET DRIFT OVER TIME HISTOGRAM
600
500
400
300
200
100
0
−
1.0
−
0.8
−
0.6
−
0.4
−
0.2 0 0.2 0.4 0.6 0.8 1.0
Offset Drift (ppm of FSR/minute)
Occurences
Range 5
Repeated measurement
of offset drift over a
one minute interval.