AS1545-BQFT データシートの表示（PDF） - austriamicrosystems AG
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AS1545-BQFT Datasheet PDF : 34 Pages
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AS1545
Datasheet - Typical Operating Characteristics
7 Typical Operating Characteristics
VDD = 5.25V, VREF = 2.5V, fSCLK = 20MHz (50% duty), fSAMPLE = 1MSPS, CREF = 4.7µF, RANGE = 0, SGL/DIFF = 1,
TAMB = +25ºC (unless otherwise specified).
Figure 4. Integral Nonlinearity vs. Digital Output Code;
1
External Reference
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
1024
2048
3072
4096
Digital Output Code
Figure 5. Diff. Nonlinearity vs. Digital Output Code;
1
External Reference
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
1024
2048
3072
4096
Digital Output Code
Figure 6. Integral Nonlinearity vs. Digital Output Code;
1
Internal Reference
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
1024
2048
3072
4096
Digital Output Code
Figure 7. Diff. Nonlinearity vs. Digital Output Code;
1
Internal Reference
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0
1024
2048
3072
4096
Digital Output Code
Figure 8. FFT @ 50kHz, External Reference;
20
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0
fSAMPLE = 1Msps
NFFT = 65536
SNR=72.8dB
THD = -84.6dB
SFDR = 88.2dB
SINAD = 72.5dB
100 200 300 400 500
Input Signal Frequency (kHz)
Figure 9. FFT @ 50kHz, Internal Reference;
20
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0
fSAMPLE = 1Msps
NFFT = 65536
SNR=72.2dB
THD = -84.7dB
SFDR = 87.9dB
SINAD = 71.9dB
100 200 300 400 500
Input Signal Frequency (kHz)
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Revision 1.01
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