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AS1545-BQFT 参数 Datasheet PDF下载

AS1545-BQFT图片预览
型号: AS1545-BQFT
PDF下载: 下载PDF文件 查看货源
内容描述: 双通道, 12位, 1MSPS , SAR ADC [Dual, 12-Bit, 1MSPS, SAR ADC]
分类和应用:
文件页数/大小: 34 页 / 1591 K
品牌: AMSCO [ AMS(艾迈斯) ]
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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;  
Figure 5. Diff. Nonlinearity vs. Digital Output Code;  
1
1
External Reference  
External Reference  
0.8  
0.6  
0.4  
0.2  
0
0.8  
0.6  
0.4  
0.2  
0
-0.2  
-0.4  
-0.6  
-0.8  
-1  
-0.2  
-0.4  
-0.6  
-0.8  
-1  
0
1024  
2048  
3072  
4096  
0
1024  
2048  
3072  
4096  
Digital Output Code  
Digital Output Code  
Figure 6. Integral Nonlinearity vs. Digital Output Code;  
Figure 7. Diff. Nonlinearity vs. Digital Output Code;  
1
1
Internal Reference  
Internal Reference  
0.8  
0.8  
0.6  
0.4  
0.2  
0
0.6  
0.4  
0.2  
0
-0.2  
-0.4  
-0.6  
-0.8  
-1  
-0.2  
-0.4  
-0.6  
-0.8  
-1  
0
1024  
2048  
3072  
4096  
0
1024  
2048  
3072  
4096  
Digital Output Code  
Digital Output Code  
Figure 8. FFT @ 50kHz, External Reference;  
Figure 9. FFT @ 50kHz, Internal Reference;  
20  
10  
0
20  
10  
0
f
= 1Msps  
f
= 1Msps  
SAMPLE  
SAMPLE  
NFFT = 65536  
SNR=72.8dB  
NFFT = 65536  
SNR=72.2dB  
THD = -84.6dB  
SFDR = 88.2dB  
SINAD = 72.5dB  
THD = -84.7dB  
SFDR = 87.9dB  
SINAD = 71.9dB  
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
-110  
-120  
-10  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
-110  
-120  
0
100  
200  
300  
400  
500  
0
100  
200  
300  
400  
500  
Input Signal Frequency(kHz)  
Input Signal Frequency(kHz)  
www.austriamicrosystems.com  
Revision 1.01  
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