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LTC1064AMJ#PBF PDF预览

LTC1064AMJ#PBF

更新时间： 2024-01-25 09:45:28
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
16页 389K
描述
IC QUAD SWITCHED CAPACITOR FILTER, RESISTOR PROGRAMMABLE, UNIVERSAL, CDIP24, 0.300 INCH, LEAD FREE, CERAMIC, DIP-24, Active Filter

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LTC1064AMJ#PBF 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：PLASTIC, SOL-24
针数：24Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.66有源滤波器类型：SWITCHED CAPACITOR FILTER
中心频率或截止频率最大范围：100 kHz中心频率或截止频率最小范围：0.0001 kHz
JESD-30 代码：R-PDSO-G24JESD-609代码：e0
长度：15.4 mm标称负供电电压 (Vsup)：-8 V
功能数量：4端子数量：24
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
极和零点：2 AND 0认证状态：Not Qualified
响应：UNIVERSAL座面最大高度：2.65 mm
标称供电电压 (Vsup)：8 V表面贴装：YES
技术：CMOS端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：7.5 mm
Base Number Matches：1

LTC1064AMJ#PBF 数据手册

 浏览型号LTC1064AMJ#PBF的Datasheet PDF文件第5页浏览型号LTC1064AMJ#PBF的Datasheet PDF文件第6页浏览型号LTC1064AMJ#PBF的Datasheet PDF文件第7页浏览型号LTC1064AMJ#PBF的Datasheet PDF文件第9页浏览型号LTC1064AMJ#PBF的Datasheet PDF文件第10页浏览型号LTC1064AMJ#PBF的Datasheet PDF文件第11页 
LTC1064  
U
W U U  
APPLICATIONS INFORMATION  
Noise  
Offset Nulling  
All the noise performance mentioned excludes the clock  
feedthrough. Noise measurements will degrade if the  
already described grounding bypassing and buffering  
techniques are not practiced. The graph Wideband Noise  
vs Q in the Typical Performance Characteristics section is  
a very good representation of the noise performance of  
this device.  
Lowpass filters may have too much DC offset for some  
users. A servo circuit may be used to actively null the  
offsets of the LTC1064 or any LTC switched-capacitor  
filter.ThecircuitshowninFigure4willnulloffsetstobetter  
than300µV. Thiscircuittakessecondstosettlebecauseof  
the integrator pole frequency.  
+
SEPARATE V POWER SUPPLY TRACE FOR BUFFER  
R12  
+
FROM  
R11  
1µF  
0.1µF  
10k  
FILTER OUTPUT  
V
IN  
R21  
R31  
R22  
R32  
10k  
R1  
1M  
4
–
LT®318  
+
V
TRACE FOR FILTER  
R3  
100k  
+
LT1007  
LT1056  
TO FILTER  
FIRST SUMMING  
NODE  
C1  
19  
LTC1064  
LT1012  
0.1µF  
+
7
POSITIVE  
SUPPLY  
7
0.1µF  
–
0.1µF  
1µF  
R2  
1M  
0.1µF  
NEGATIVE  
SUPPLY  
C2  
0.1µF  
+
C1 = C2 = LOW LEAKAGE FILM  
(I.E. POLYPROPYLENE)  
R1 = R2 = METAL FILM 1%  
1064 F04  
1064 F03  
Figure 3. Buffering the Output of a 4th Order Bandpass Realization  
Figure 4. Servo Amplifier  
W
U
ODES OF OPERATIO  
PRIMARY MODES  
Mode 1  
R3  
R2  
In Mode 1, the ratio of the external clock frequency to the  
center frequency of each 2nd order section is internally  
fixed at 50:1 or 100:1. Figure 5 illustrates Mode 1 provid-  
ing 2nd order notch, lowpass and bandpass outputs.  
Mode 1 can be used to make high order Butterworth  
lowpass filters; it can also be used to make low Q notches  
and for cascading 2nd order bandpass functions tuned at  
thesamecenterfrequencywithunitygain.Mode1isfaster  
than Mode 3. Note that Mode 1 can only be implemented  
with three of the four LTC1064 sections because Section  
D has no externally available summing node. Section D,  
however, can be internally connected in Mode 1 upon  
special request.  
BP  
LP  
N
S
R1  
V
IN  
–
+
–
+
Σ
∫
∫
1/4 LTC1064  
AGND  
R2  
R1  
R3  
R1  
R2  
R1  
R3  
R2  
f
CLK  
100(50)  
f
O
=
; f= f ; H  
= –  
; H  
= –  
; H = –  
ON1  
; Q =  
n
O
OLP  
OBP  
1064 F05  
Figure 5. Mode 1: 2nd Order Filter Providing Notch,  
Bandpass and Lowpass  
8
1...567891011...16

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