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AD7818ARZ-REEL7 PDF预览

AD7818ARZ-REEL7

更新时间: 2024-02-01 02:37:14
品牌 Logo 应用领域
亚德诺 - ADI 传感器换能器温度传感器输出元件
页数 文件大小 规格书
20页 1587K
描述
Dual, Low Power CMOS, Analog Front End with DSP Microcomputer

AD7818ARZ-REEL7 技术参数

是否无铅:含铅是否Rohs认证:符合
生命周期:Active包装说明:SOIC-8
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:1.97Is Samacsys:N
最大精度(摄氏度):2 Cel主体宽度:3.9 mm
主体高度:1.55 mm主体长度或直径:4.9 mm
JESD-609代码:e3安装特点:SURFACE MOUNT
位数:10端子数量:8
最大工作电流:2 mA最高工作温度:85 °C
最低工作温度:-40 °C输出接口类型:3-WIRE INTERFACE
封装主体材料:PLASTIC/EPOXY封装等效代码:SOP8,.25
封装形状/形式:RECTANGULAR电源:3/5 V
传感器/换能器类型:TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL子类别:Other Sensors/Transducers
最大供电电压:5.5 V最小供电电压:2.7 V
表面贴装:YES技术:CMOS
端子面层:Matte Tin (Sn)端接类型:SOLDER
Base Number Matches:1

AD7818ARZ-REEL7 数据手册

 浏览型号AD7818ARZ-REEL7的Datasheet PDF文件第1页浏览型号AD7818ARZ-REEL7的Datasheet PDF文件第2页浏览型号AD7818ARZ-REEL7的Datasheet PDF文件第4页浏览型号AD7818ARZ-REEL7的Datasheet PDF文件第5页浏览型号AD7818ARZ-REEL7的Datasheet PDF文件第6页浏览型号AD7818ARZ-REEL7的Datasheet PDF文件第7页 
Data Sheet  
AD7817/AD7818  
SPECIFICATIONS  
VDD = 2.7 V to 5.5 V, GND = 0 V, REFIN = 2.5 V, unless otherwise noted. The AD7817 temperature sensor is specified with an external  
2.5 V reference, and the AD7818 temperature sensor is specified with an on-chip reference. For VDD = 2.7 V, TA = 85°C maximum and  
temperature sensor measurement error = 3°C.  
Table 1.  
Parameter  
A Version1 B Version1 S Version1 Unit  
Test Conditions/Comments  
DYNAMIC PERFORMANCE (AD7817 ONLY )  
Sample rate = 100 kSPS, any channel,  
f
IN = 20 kHz  
Signal-to-(Noise + Distortion) Ratio2  
Total Harmonic Distortion2  
Peak Harmonic or Spurious Noise2  
Intermodulation Distortion2  
Second-Order Terms  
58  
–65  
–65  
58  
−65  
−65  
58  
−65  
−65  
dB min  
dB max  
dB max  
−75 dB typical  
−75 dB typical  
fa =19.9 kHz, fb = 20.1 kHz  
–67  
–67  
–80  
−67  
−67  
−80  
−67  
−67  
−80  
dB typ  
dB typ  
dB typ  
Third-Order Terms  
Channel-to-Channel Isolation2  
DC ACCURACY (AD7817 ONLY )  
Resolution  
fIN = 20 kHz  
Any channel  
10  
10  
10  
10  
10  
10  
Bits  
Minimum Resolution for Which No  
Missing Codes are Guaranteed  
Relative Accuracy2  
Differential Nonlinearity2  
Gain Error2  
1
1
2
10  
1/2  
2
1/2  
1
1
2
10  
1/2  
2
1/2  
1
1
2
LSB max  
LSB max  
LSB max  
LSB max  
LSB max  
LSB max  
LSB max  
External reference  
Internal reference  
+20/−10  
1/2  
2
Gain Error Match2  
Offset Error2  
Offset Error Match  
1/2  
TEMPERATURE SENSOR (AD7817 ONLY )  
Measurement Error  
Ambient Temperature 25°C  
TMIN to TMAX  
Measurement Error  
External reference VREF = 2.5 V  
On-chip reference  
2
3
1
2
2
3
°C max  
°C max  
Ambient Temperature 25°C  
TMIN to TMAX  
Temperature Resolution  
REFERENCE INPUT (AD7817 ONLY )3, 4  
REFIN Input Voltage Range3  
2.25  
3
1/4  
2.25  
3
1/4  
2.25  
6
1/4  
°C max  
°C max  
°C/LSB  
2.625  
2.375  
40  
2.625  
2.375  
40  
2.625  
2.375  
40  
V max  
V min  
kΩ min  
pF max  
2.5 V + 5%  
2.5 V − 5%  
Input Impedance  
Input Capacitance  
10  
10  
10  
ON-CHIP REFERENCE (AD7817 ONLY ) 5  
Temperature Coefficient3  
CONVERSION RATE (AD7817 ONLY )  
Track-and-Hold Acquisition Time4  
Conversion Time  
Nominal 2.5 V  
80  
80  
150  
400  
ppm/°C typ  
ns max  
400  
400  
Source Impedance < 10 Ω  
Temperature Sensor  
Channel 1 to Channel 4  
27  
9
27  
9
27  
9
µs max  
μs max  
Rev. D | Page 3 of 20  
 
 

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