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AD7746

更新时间: 2024-02-12 14:34:22
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5页浏览型号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9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 
AD7745/AD7746  
TYPICAL PERFORMANCE CHARACTERISTICS  
18  
16  
14  
12  
10  
8
100  
2.7V 3V  
3.3V  
5V  
80  
60  
40  
20  
0
6
4
2
0
–2  
0
50  
100 150 200 250 300 350 400 450 500  
CAPACITANCE CIN PIN TO GND (pF)  
–5  
–4  
–3  
–2  
–1  
0
1
2
3
4
5
INPUT CAPACITANCE (pF)  
Figure 6. Capacitance Input Integral Nonlinearity,  
DD = 5 V, the Same Configuration as in Figure 31  
Figure 9. Capacitance Input Error vs. Capacitance between CIN and GND.  
CIN(+) to EXC = 4 pF, CIN(−) to EXC = 0 pF, VDD = 2.7 V, 3 V, 3.3 V, and 5 V,  
the Same Configuration as in Figure 33  
V
2000  
18  
16  
14  
GAIN TC –26ppm/°C  
1000  
0
2.7V  
3V  
3.3V  
12  
10  
8
–1000  
–2000  
–3000  
6
5V  
4
2
0
–50  
–25  
0
25  
50  
75  
100  
125  
150  
–2  
0
50  
100 150 200 250 300 350 400 450 500  
CAPACITANCE CIN PIN TO GND (pF)  
TEMPERATURE (°C)  
Figure 7. Capacitance Input Offset Drift vs. Temperature,  
VDD = 5 V, CIN and EXC Pins Open Circuit  
Figure 10. Capacitance Input Error vs. Capacitance between CIN and GND,  
CIN(+) to EXC = 21 pF, CIN(−) to EXC = 23 pF, VDD = 2.7 V, 3 V, 3.3 V, and 5 V,  
the Same Configuration as in Figure 34  
100  
5
75  
50  
2.7V  
3V  
4
3
5V  
25  
3.3V  
0
2
–25  
–50  
–75  
–100  
1
0
–1  
–50  
–25  
0
25  
50  
75  
100  
125  
150  
0
50  
100 150 200 250 300 350 400 450 500  
CAPACITANCE EXC PIN TO GND (pF)  
TEMPERATURE (°C)  
Figure 8. Capacitance Input Gain Drift vs. Temperature,  
DD = 5 V, CIN(+) to EXC = 4 pF, the Same Configuration as in Figure 30  
Figure 11. Capacitance Input Error vs. Capacitance between EXC and GND,  
CIN(+) to EXC = 21 pF, CIN(−) to EXC = 23 pF, VDD = 2.7 V, 3 V, 3.3 V, and 5 V,  
the Same Configuration as in Figure 34  
V
Rev. 0 | Page 8 of 28  
 
 
 
 

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