AS1543-BTST 查看數據表（PDF） - austriamicrosystems AG
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AS1543-BTST Datasheet PDF : 29 Pages
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AS1543/44
Data Sheet - Typical Operating Characteristics
7 Typical Operating Characteristics
VDD = 5.25V; VREF = 2.5V, CREF = 4.7µF, RANGE=1, SE/FDN=1, TAMB = +25ºC (unless otherwise specified).
Figure 5. Integral Nonlinearity vs. Digital Output Code Figure 6. Differential Nonlinearity vs. Digital Output Code
1
1
fSAMPLE = 1Msps
fSAMPLE = 1Msps
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0
0
-0.2
-0.2
-0.4
-0.4
-0.6
-0.6
-0.8
-0.8
-1
0
1024
2048
3072
4096
Digital Output Code
-1
0
1024
2048
3072
4096
Digital Output Code
Figure 7. FFT @ 50kHz; RANGE=1, SE/FDN=1
20
fSAMPLE = 1Msps
NFFT = 32768
0
SNR=72.1dB
THD = -84.7dB
-20
SFDR = 86.2dB
-40
-60
-80
-100
-120
0
100 200 300 400 500
Input Signal Frequency (kHz)
Figure 8. FFT @ 50kHz; RANGE=1, SE/FDN=0
20
fSAMPLE = 1Msps
NFFT = 32768
0
SNR=71.0dB
THD = -85.5dB
-20
SFDR = 86.5dB
-40
-60
-80
-100
-120
0
100 200 300 400 500
Input Signal Frequency (kHz)
Figure 9. ENOB vs. VREFIN; RANGE=1, SE/FDN=1
11.7
11.6
VDD = 5V
11.5 VDD = 3V
11.4
11.3
11.2
11.1
11
1
2
3
4
5
VREFIN (V)
Figure 10. ENOB vs. Input Signal Frequency
11.8
11.7
11.6
11.5
VDD = 5.25V
11.4
11.3
11.2
VDD = 3.6V
11.1
11
10
VDD = 2.7V
VDD = 4.75V
100
Frequency (kHz)
1000
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