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ADS7817 参数 Datasheet PDF下载

ADS7817图片预览
型号: ADS7817
PDF下载: 下载PDF文件 查看货源
内容描述: 12位差分输入微功耗采样模拟数字转换器 [12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER]
分类和应用: 转换器
文件页数/大小: 15 页 / 174 K
品牌: BB [ BURR-BROWN CORPORATION ]
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TYPICAL PERFORMANCE CURVES (Cont.)  
At TA = +25°C, VCC = +5V, VREF = +2.5V, fSAMPLE = 200kHz, and fCLK = 16 • fSAMPLE, –In = +2.5V, unless otherwise specified.  
FREQUENCY SPECTRUM  
(4096 Point FFT; fIN = 9.9kHz, –0.5dB)  
POWER SUPPLY REJECTION vs RIPPLE FREQUENCY  
0
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
0
–20  
–40  
–60  
–80  
–100  
–120  
1
10  
100  
1000  
10000  
0
25  
50  
75  
100  
Ripple Frequency (kHz)  
Frequency (kHz)  
SPURIOUS FREE DYNAMIC RANGE AND  
TOTAL HARMONIC DISTORTION  
vs INPUT FREQUENCY  
SIGNAL-TO-NOISE RATIO AND  
SIGNAL-TO-(NOISE+DISTORTION)  
vs INPUT FREQUENCY  
95  
90  
85  
80  
75  
70  
65  
–95  
–90  
–85  
–80  
–75  
–70  
–65  
73  
72  
71  
70  
69  
68  
67  
SNR  
SFDR  
SINAD  
THD  
1
10  
100  
1
10  
100  
Input Frequency (kHz)  
Input Frequency (kHz)  
SIGNAL-TO-(NOISE+DISTORTION)  
vs INPUT LEVEL  
CHANGE IN INTEGRAL LINEARITY and DIFFERENTIAL  
LINEARITY vs SAMPLE RATE  
1.5  
1.0  
0.5  
0
80  
70  
60  
50  
40  
30  
20  
10  
Change in Integral  
Linearity (LSB)  
Change in Differential  
Linearity (LSB)  
–0.5  
0
80  
160  
240  
320  
400  
–60  
–50  
–40  
–30  
–20  
–10  
0
Sample Rate (kHz)  
Input Level (dB)  
®
ADS7817  
5