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AS1545 数据表(PDF) 10 Page - ams AG

部件名 AS1545
功能描述  Dual, 12-Bit, 1MSPS, SAR ADC
PDF  34 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS1545 数据表(HTML) 10 Page - ams AG

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www.austriamicrosystems.com
Revision 1.00
10 - 34
AS1545
Data Sheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
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;
Figure 5. Diff. Nonlinearity vs. Digital Output Code;
-1
-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
External Reference
-1
-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
External Reference
Figure 6. Integral Nonlinearity vs. Digital Output Code;
Figure 7. Diff. Nonlinearity vs. Digital Output Code;
-1
-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
Internal Reference
-1
-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
Internal Reference
Figure 8. FFT @ 50kHz, External Reference;
Figure 9. FFT @ 50kHz, Internal Reference;
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
0
100
200
300
400
500
Input Signal Frequency (kHz)
fSAMPLE = 1Msps
NFFT = 65536
SNR=72.8dB
THD = -84.6dB
SFDR = 88.2dB
SINAD = 72.5dB
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
0
100
200
300
400
500
Input Signal Frequency (kHz)
fSAMPLE = 1Msps
NFFT = 65536
SNR=72.2dB
THD = -84.7dB
SFDR = 87.9dB
SINAD = 71.9dB



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