SBAS302C – DECEMBER 2003 – REVISED OCTOBER 2012
TYPICAL CHARACTERISTICS
At T
A
= +25°C, V
DD
= +2.7V, V
REF
= External +2.5V, and f
SAMPLE
= 50kHz, unless otherwise noted.
FFT vs FREQUENCY
0
0.5
0.4
INTEGRAL LINEARITY ERROR vs CODE
(2.5V Internal Reference)
-20
0.3
0.2
Amplitude (dB)
-40
ILE (LSB)
0.1
0
-0.1
-0.2
-60
-80
-0.3
-0.4
-100
0
10
Frequency (kHz)
20
25
-0.5
0
64
128
Output Code
192
255
Figure 1.
DIFFERENTIAL LINEARITY ERROR vs CODE
(2.5V Internal Reference)
0.5
0.4
0.3
0.2
0.5
0.4
0.3
0.2
Figure 2.
INTEGRAL LINEARITY ERROR vs CODE
(2.5V External Reference)
ILE (LSB)
ILE (LSB)
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
64
128
Output Code
192
255
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
64
128
Output Code
192
255
Figure 3.
DIFFERENTIAL LINEARITY ERROR vs CODE
(2.5V External Reference)
0.5
0.4
0.3
Delta from 25
°
C (LSB)
0.05
0.10
Figure 4.
CHANGE IN OFFSET vs TEMPERATURE
0.2
ILE (LSB)
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
64
128
Output Code
192
255
0
-0.05
-0.10
-50
-25
0
25
50
75
100
Temperature (
°
C)
Figure 5.
Figure 6.
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