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SBAS306A − NOVEMBER 2004 − REVISED DECEMBER 2004
TYPICAL CHARACTERISTICS
T
A
= 25°C, AVDD = 5V, DVDD = 1.8V, f
CLK
= 27MHz, and V
REF
= 2.5V, unless otherwise noted.
OUTPUT SPECTRUM
High−Speed Mode
OUTPUT SPECTRUM
0
20
40
60
80
0
High−Speed Mode
fIN = 1kHz, 20dBFS
32,768 Points
−
−
−
−
−
−
fIN = 1kHz, 0.5dBFS
32,768 Points
−
−
−
−
20
40
60
80
−
−
−
−
−
−
−
−
100
120
140
160
100
120
140
160
10
100
1k
10k
100k
10
100
1k
10k
100k
Frequency (Hz)
Frequency (Hz)
Figure 1
Figure 2
OUTPUT SPECTRUM
NOISE HISTOGRAM
0
420k
360k
300k
240k
180k
120k
60k
High−Speed Mode
High−Speed Mode
Shorted Input
2,097,152 Points
−
−
−
−
20 Shorted Input
2,097,152 Points
40
60
80
−
−
−
−
−
100
120
140
160
180
0
0.1
1
10
100
1k
10k
100k
Frequency (Hz)
µ
Output ( V)
Figure 3
Figure 4
OUTPUT SPECTRUM
High−Resolution Mode
OUTPUT SPECTRUM
High−Resolution Mode
0
0
−
−
−
−
−
−
fIN = 1kHz, 0.5dBFS
−
−
−
−
fIN = 1kHz, 20dBFS
20
40
60
80
20
40
60
80
32,768 Points
32,768 Points
−
−
−
−
−
−
−
−
100
120
140
160
100
120
140
160
10
100
1k
10k
100k
10
100
1k
10k
100k
Frequency (Hz)
Frequency (Hz)
Figure 5
Figure 6
8
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