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AD834AQ PDF预览

AD834AQ

更新时间: 2024-02-14 23:10:46
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
8页 260K
描述
500 MHz Four-Quadrant Multiplier

AD834AQ 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP8,.25针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.43
模拟集成电路 - 其他类型:ANALOG MULTIPLIER OR DIVIDER标称带宽:500 MHz
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:1
负电源电压最大值(Vsup):-9 V负电源电压最小值(Vsup):-4 V
标称负供电电压 (Vsup):-5 V最大负输入电压:-1 V
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
最大正输入电压:1 V电源:+-5 V
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Analog Computational Functions最大供电电流 (Isup):35 mA
最大供电电压 (Vsup):9 V最小供电电压 (Vsup):4 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:BIPOLAR温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3.9 mm
Base Number Matches:1

AD834AQ 数据手册

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AD834  
Figure 14. Frequency Doubler Connections  
Figure 15. Output Spectrum for Configuration of Figure 14  
WIDEBAND THREE SIGNAL MULTIPLIER/DIVIDER  
Two AD834s and a wideband op amp can be connected to  
make a versatile multiplier/divider having the transfer function  
(X1X2)(Y1Y2)  
W =  
+ Z  
(U1U2)  
with a denominator range of about 100:1. The denominator in-  
put U = U1U2 must be positive and in the range 100 mV to  
10 V; X, Y and Z inputs may have either polarity. Figure 16  
shows a general configuration which may be simplified to suit a  
particular application. This circuit accepts full-scale input volt-  
ages of 10 V, and delivers a full-scale output voltage of 10 V.  
The optional offset trim at the output of the AD834 improves  
the accuracy for small denominator values. It is adjusted by  
nulling the output voltage when the X and Y inputs are zero and  
U = +100 mV.  
Figure 16. Wideband Three Signal Multiplier/Divider  
can be connected to ground through a single resistor, equal to  
the parallel sum of the resistors in the attenuator section. The  
full-scale input levels on X, Y and U can be adapted to any full-  
scale voltage down to 1 V by altering the attenuator ratios.  
Note, however, that precautions must be taken if the attenuator  
ratio from the output of A3 back to the second AD834 (A2) is  
lowered. First, the HF compensation limit of the AD840 may be  
exceeded if the negative feedback factor is too high. Second, if  
the attenuated output at the AD834 exceeds its clipping level of  
1.3 V, feedback control will be lost and the output will sud-  
denly jump to the supply rails. However, with these limitations  
understood, it will be possible to adapt the circuit to smaller  
full-scale inputs and/or outputs, and for use with lower supply  
voltages.  
The AD840 is internally compensated to be stable without the  
use of any additional HF compensation. As the input U is re-  
duced, the bandwidth falls because the feedback around the op  
amp is proportional to the input U.  
This circuit may be modified in several ways. For example, if  
the differential input feature is not needed, the unused input  
–8–  
REV. C  

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