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AD5260BRU50 PDF预览

AD5260BRU50

更新时间： 2024-01-10 20:20:49
品牌 Logo 应用领域
亚德诺 - ADI 电位器
页数 文件大小 规格书
20页 841K
描述
1-/2-Channel 15 V Digital Potentiometers

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中文翻译

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AD5260BRU50 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：TSSOP包装说明：TSSOP-14
针数：14Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.35其他特性：IT CAN ALSO OPERATE FROM A SINGLE 4.5V TO 16.5V SUPPLY; ALSO REQUIRES A +2.7V TO +5.5V LOGIC SUPPLY
标称带宽：0.13 kHz控制接口：3-WIRE SERIAL
转换器类型：DIGITAL POTENTIOMETERJESD-30 代码：R-PDSO-G14
JESD-609代码：e0长度：5 mm
湿度敏感等级：1标称负供电电压：-5 V
功能数量：1位置数：256
端子数量：14最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP14,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：240电源：5/15/+-5 V
认证状态：Not Qualified电阻定律：LINEAR
最大电阻容差：30%最大电阻器端电压：5 V
最小电阻器端电压：-5 V座面最大高度：1.2 mm
子类别：Digital Potentiometers标称供电电压：5 V
表面贴装：YES标称温度系数：35 ppm/ °C
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn85Pb15)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
标称总电阻：50000 Ω宽度：4.4 mm
Base Number Matches：1

AD5260BRU50 数据手册

 浏览型号AD5260BRU50的Datasheet PDF文件第13页浏览型号AD5260BRU50的Datasheet PDF文件第14页浏览型号AD5260BRU50的Datasheet PDF文件第15页浏览型号AD5260BRU50的Datasheet PDF文件第17页浏览型号AD5260BRU50的Datasheet PDF文件第18页浏览型号AD5260BRU50的Datasheet PDF文件第19页 
AD5260/AD5262  
that can deliver 20 mA at 2.048 V. The load current is simply the  
voltage across terminals B-to-W of the digital pot divided by RS.  
Programmable Low-Pass Filter  
Digital potentiometer AD5262 can be used to construct a second  
order Sallen Key Low-Pass Filter (see Figure 21). The design  
equations are:  
VREF ¥ D  
IL  
=
(7)  
RS  
2
VO  
Vi  
wO  
w
Q
=
=
؉5V  
2
(9)  
S2 + O S + wO  
2
V
U1  
IN  
1
REF191  
3
wO  
(10)  
(11)  
0 TO (2.048 ؉ V )  
L
SLEEP  
6
R1R2C1C2  
V
OUT  
B
W
C1  
AD5260  
GND  
4
1␮F  
1
1
A
+5V  
Q =  
+
R1C1 R2C2  
Users can first select some convenient values for the capacitors.  
To achieve maximally flat bandwidth where Q = 0.707, let C1 be  
twice the size of C2 and let R1 = R2. As a result, users can adjust  
R1 and R2 to the same settings to achieve the desirable bandwidth.  
U2  
–
R
S
OP1177  
+
102⍀  
–2.048V TO V  
L
V
L
R
L
100⍀  
I
L
–5V  
C1  
Figure 19. Programmable 4-to-20 mA Current Source  
+2.5V  
The circuit is simple, but be aware that dual-supply op amps are  
ideal because the ground potential of REF191 can swing from  
–2.048 V at zero scale to VL at full scale of the potentiometer  
setting. Although the circuit works under single supply, the pro-  
grammable resolution of the system will be reduced.  
R1  
R2  
A
B
A
B
V
i
AD8601  
–2.5V  
V
O
W
W
R
R
C2  
Programmable Bidirectional Current Source  
ADJUSTED TO  
SAME SETTINGS  
For applications that require bidirectional current control or higher  
voltage compliance, a Howland current pump can be a solution  
(see Figure 20). If the resistors are matched, the load current is:  
Figure 21. Sallen Key Low-Pass Filter  
Programmable Oscillator  
R2A + R2B /R1  
(
)
(8)  
IL  
=
¥VW  
In a classic Wien-bridge oscillator, Figure 22, the Wien network  
(R, R’, C, C’) provides positive feedback, while R1 and R2  
provide negative feedback. At the resonant frequency, fo, the  
overall phase shift is zero, and the positive feedback causes the  
circuit to oscillate. With R = R’, C = C’, and R2 = R2A//(R2B+  
RDIODE), the oscillation frequency is:  
R2B  
R1  
R2  
150k⍀  
15k⍀  
C1  
10pF  
+15V  
1
RC  
1
wO  
=
or fO  
=
(12)  
2pRC  
C2  
A2  
10pF  
AD8016  
+5V  
where R is equal to RWA such that:  
+15V  
R
L
256 – D  
256  
A
R =  
RAB  
50⍀  
R1  
(13)  
(14)  
–15V  
R2A  
150k⍀  
AD5260  
W
V
L
OP2177  
B
At resonance, setting  
14.95k⍀  
R
500⍀  
L
R2  
= 2  
R1  
A1  
–5V  
–15V  
I
L
balances the bridge. In practice, R2/R1 should be set slightly larger  
than 2 to ensure the oscillation can start. On the other hand, the  
alternate turn-on of the diodes D1 and D2 ensures R2/R1 to be  
smaller than 2 momentarily and therefore stabilizes the oscillation.  
Figure 20. Programmable Bidirectional Current Source  
Once the frequency is set, the oscillation amplitude can be tuned  
by R2B since:  
2
3
VO = IDR2B +VD  
(15)  
–16–  
REV. 0  
1...1314151617181920

中文翻译

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AD5260BRU50 替代型号

型号 品牌 替代类型 描述 数据表
AD5260BRUZ50-REEL7 ADI

完全替代

 1-/2-Channel 15 V Digital Potentiometer
AD5260BRUZ50 ADI

完全替代

 1-/2-Channel 15 V Digital Potentiometer
AD5260BRU50-REEL7 ADI

完全替代

 1-/2-Channel 15 V Digital Potentiometers

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AD5260BRUZ20-RL7 ADI

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AD5260BRUZ50 ADI

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AD5260BRUZ50-REEL7 ADI

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AD5262 ADI

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 		2-Channel, 256-Position Digital Potentiometer
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