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SBAS366 – OCTOBER 2006
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, AVDD = DVDD = REFP = 5V, and REFN = AGND, unless otherwise noted.
NOISE HISTOGRAM
500
450
400
350
PGA = 128
Data Rate = 10SPS
200
250
PGA = 128
Data Rate = 80SPS
NOISE HISTOGRAM
Occurrence
300
250
200
150
100
50
0
-5
-4
-3
-2
-1
0
Output Code (LSB)
Occurrence
150
100
50
0
-7 -6 -5 -4 -3 -2 -1
0
1
2
3
4
5
6
7
Output Code (LSB)
Figure 7.
OFFSET vs TEMPERATURE
1000
800
600
-0.03
-0.02
Figure 8.
GAIN ERROR vs TEMPERATURE
PGA = 64
Data Rate = 10SPS
200
0
-200
-400
-600
-800
-50
-25
0
25
50
75
100
Temperature (
°
C)
PGA = 64
Data Rate = 10SPS
Gain Error (%)
400
Offset (nV)
-0.04
-0.05
-0.06
-50
-25
0
25
50
75
100
Temperature (
°
C)
Figure 9.
NOISE vs INPUT SIGNAL
50
45
40
100
120
PGA = 64
Data Rate = 80SPS
Figure 10.
NOISE vs INPUT SIGNAL
RMS Noise (nV)
30
25
20
15
10
5
0
-40
-30
-20
-10
0
V
IN
(mV)
10
20
30
40
PGA = 64
Data Rate = 10SPS
RMS Noise (nV)
35
80
60
40
-40
-30
-20
-10
0
V
IN
(mV)
10
20
30
40
Figure 11.
Figure 12.
8
BURR-BROWN [ BURR-BROWN CORPORATION ]
