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AD7746

更新时间: 2024-01-26 17:40:50
品牌 Logo 应用领域
亚德诺 - ADI 转换器传感器温度传感器
页数 文件大小 规格书
28页 780K
描述
24-Bit Capacitance-to-Digital Converter with Temperature Sensor

AD7746 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.31
最大精度(摄氏度):2 Cel主体宽度:4.4 mm
主体高度:1.2 mm主体长度或直径:5 mm
JESD-609代码:e3安装特点:SURFACE MOUNT
位数:24最大工作电流:0.7 mA
最高工作温度:125 °C最低工作温度:-40 °C
输出接口类型:2-WIRE INTERFACE封装形状/形式:RECTANGULAR
传感器/换能器类型:TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL最大供电电压:5.25 V
最小供电电压:2.7 V表面贴装:YES
端子面层:Matte Tin (Sn)端接类型:SOLDER

AD7746 数据手册

 浏览型号AD7746的Datasheet PDF文件第6页浏览型号AD7746的Datasheet PDF文件第7页浏览型号AD7746的Datasheet PDF文件第8页浏览型号AD7746的Datasheet PDF文件第10页浏览型号AD7746的Datasheet PDF文件第11页浏览型号AD7746的Datasheet PDF文件第12页 
AD7745/AD7746  
8
6
0
4
–2  
2
0
–4  
–6  
–2  
–4  
–6  
–8  
–10  
–12  
3V  
2.7V  
–8  
–10  
1
2
3
4
5
6
–250 –200 –150 –100 –50  
0
50  
100 150 200 250  
0
7
CIN LEAKAGE TO GND (nA)  
SERIAL RESISTANCE (k)  
Figure 12. Capacitance Input Error vs. Leakage Current to GND,  
CIN(+) to EXC = 4 pF, CIN(−) to EXC = 0 pF,  
Figure 15. Capacitance Input Error vs. Serial Resistance,  
CIN(+) to EXC = 21 pF, CIN(−) to EXC = 23 pF, VDD = 5 V,  
the Same Configuration as in Figure 34.  
V
DD = 2.7 V and 3 V  
0.2  
8
6
0
–0.2  
–0.4  
–0.6  
–0.8  
–1.0  
4
2
0
5V  
–2  
–4  
–6  
–8  
–10  
–12  
3.3V  
2.5  
3.0  
3.5  
4.0  
(V)  
4.5  
5.0  
5.5  
–250 –200 –150 –100 –50  
0
50  
100 150 200 250  
V
DD  
CIN LEAKAGE TO GND (nA)  
Figure 16. Capacitance Input Power Supply Rejection (PSR),  
CIN(+) to EXC = 4 pF, the Same Configuration as in Figure 30  
Figure 13. Capacitance Input Error vs. Leakage Current to GND,  
CIN(+) to EXC =4 pF, CIN(−) to EXC = 0 pF,  
VDD=3.3 V and 5 V  
10  
0.20  
0.15  
0.10  
0.05  
0
1
0.1  
0.01  
0.001  
0.0001  
–0.05  
–0.10  
–0.15  
–0.20  
1
10  
100  
1000  
10000  
100000  
0
16  
32  
48  
64  
80  
96  
112  
128  
PARALLEL RESISTANCE (M)  
CAPDAC CODE  
Figure 14. Capacitance Input Error vs. Resistance in Parallel  
with Measured Capacitance  
Figure 17. CAPDAC Differential Nonlinearity (DNL)  
Rev. 0| Page ꢀ of 28  
 
 
 
 

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