Datasheet

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SBAS287A − JUNE 2003 − REVISED SEPTEMBER 2003
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5
TYPICAL CHARACTERISTICS
At T
A
= +25°C, AVDD = +5V, DVDD = +3V, f
CLK
= 2.4576MHz, and V
REF
= +1.25V, unless otherwise specified.
Figure 7
OFFSET vs TEMPERATURE
Te m pe r at u r e (
_
C)
Normalized Offset (ppm of FSR)
15
−
5
−
25 35 55 75 95
−
45
5
4
3
2
1
0
−
1
−
2
−
3
−
4
−
5
GAIN vs TEMPERATURE
Temperature (
_
C)
Gain (Normalized)
15
−
5
−
25 35 55 75 95
−
45
1.00006
1.00005
1.00004
1.00003
1.00002
1.00001
1.00000
0.99999
0.99998
0.99997
0.99996
0.99995
0.99994
Figure 8
Figure 9
NOISE vs INPUT SIGNAL
V
IN
(V)
Noise (ppm of FSR, RMS)
−
1.5
−
0.5 0.5 1.5 2.5
−
2.5
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
Figure 10
NOISE vs TEMPERATURE
Temperature (
_
C)
Noise (ppm of FSR, RMS)
15
−
5
−
25 35 55 75 95
−
45
3.0
2.5
2.0
1.5
1.0
0.5
0
Figure 11
HISTOGRAM OF OUTPUT DATA
ppm of FSR
Number of Occurences
−
14
−
12
−
10
−
9
−
8
−
7
−
6
−
5
−
4
−
3
−
2
−
1
0 1 2 3 4 5 6 7 8 9
10
11
12
900
800
700
600
500
400
300
200
100
0
Figure 12
COMMON−MODE REJECTION RATIO
vs FREQUENCY
Frequency (Hz)
CMRR (dB)
1k10010 10k 100k1
160
140
120
100
80
60
40
20
0