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AD7705BRUZ-REEL7 参数 Datasheet PDF下载

AD7705BRUZ-REEL7图片预览
型号: AD7705BRUZ-REEL7
PDF下载: 下载PDF文件 查看货源
内容描述: [3V/5V, 1 mW, 2-Channel Differential, 16-Bit Sigma-Delta ADC]
分类和应用: 光电二极管转换器
文件页数/大小: 44 页 / 470 K
品牌: ADI [ ADI ]
 浏览型号AD7705BRUZ-REEL7的Datasheet PDF文件第10页浏览型号AD7705BRUZ-REEL7的Datasheet PDF文件第11页浏览型号AD7705BRUZ-REEL7的Datasheet PDF文件第12页浏览型号AD7705BRUZ-REEL7的Datasheet PDF文件第13页浏览型号AD7705BRUZ-REEL7的Datasheet PDF文件第15页浏览型号AD7705BRUZ-REEL7的Datasheet PDF文件第16页浏览型号AD7705BRUZ-REEL7的Datasheet PDF文件第17页浏览型号AD7705BRUZ-REEL7的Datasheet PDF文件第18页  
AD7705/AD7706  
TYPICAL PERFORMANCE CHARACTERISTICS  
32771  
400  
300  
200  
V
V
= 5V  
T = 25°C  
DD  
A
= 2.5V  
RMS NOISE = 600nV  
REF  
32770  
32769  
GAIN = +128  
50Hz UPDATE RATE  
32768  
32767  
32766  
32765  
32764  
32763  
100  
0
0
100 200 300 400 500 600 700 800 900 1000  
READING NUMBER  
32764  
32765  
32766  
32767  
CODE  
32768 32769  
32770  
Figure 5. Noise @ Gain = +128 With 50 Hz Update Rate  
Figure 8. Histogram of Data in Figure 5  
1.2  
1.0  
0.8  
0.6  
0.4  
1.2  
1.0  
0.8  
0.6  
0.4  
V
T
= 3V  
V
= 5V  
= +25°C  
DD  
= 25°C  
DD  
T
A
A
BUFFERED MODE, GAIN = +128  
BUFFERED MODE, GAIN = +128  
BUFFERED MODE, GAIN = +1  
BUFFERED MODE, GAIN = +1  
UNBUFFERED MODE, GAIN = +128  
UNBUFFERED MODE, GAIN = +128  
UNBUFFERED MODE, GAIN = +1  
0.2  
0
0.2  
0
UNBUFFERED MODE, GAIN = +1  
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6  
FREQUENCY (MHz)  
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6  
FREQUENCY (MHz)  
Figure 6. IDD vs. MCLK IN Frequency @ 3 V  
Figure 9. IDD vs. MCLK IN Frequency @ 5 V  
1.0  
1.2  
BUFFERED MODE  
= 5MHz,  
CLKDIV = 1  
BUFFERED MODE  
= 5MHz,  
CLKDIV = 1  
f
f
CLK  
CLK  
0.9  
0.8  
1.0  
0.8  
0.6  
0.4  
BUFFERED MODE  
= 2.4576MHz, CLKDIV = 0  
BUFFERED MODE  
= 2.4576MHz, CLKDIV = 0  
UNBUFFERED MODE  
UNBUFFERED MODE  
f
f
CLK  
CLK  
f
= 1MHz,  
f
= 1MHz,  
CLK  
CLKDIV = 0  
CLK  
CLKDIV = 0  
0.7  
0.6  
0.5  
UNBUFFERED MODE  
= 5MHz, CLKDIV = 1  
UNBUFFERED MODE  
= 5MHz, CLKDIV = 1  
f
CLK  
f
CLK  
0.4  
0.3  
0.2  
UNBUFFERED MODE  
UNBUFFERED MODE  
= 2.84MHz, CLKDIV = 0  
f
= 2.4576MHz, CLKDIV = 0  
CLK  
f
CLK  
V
= 3V  
V
= 5V  
DD  
DD  
0.2  
0
BUFFERED MODE  
EXTERNAL MCLK  
CLKDIS = 1  
EXTERNAL MCLK  
CLKDIS = 1  
BUFFERED MODE  
= 1MHz, CLKDIV = 0  
f
= 1MHz, CLKDIV = 0  
f
CLK  
0.1  
0
CLK  
T
= 25°C  
T
= 25°C  
A
A
1
2
4
8
16  
32  
64  
128  
1
2
4
8
16  
32  
64  
128  
GAIN  
GAIN  
Figure 10. IDD vs. Gain and Clock Frequency @ 5 V  
Figure 7. IDD vs. Gain and Clock Frequency @ 3 V  
Rev. C | Page 14 of 44  
 
 
 
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