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TL441-EP

更新时间： 2024-09-23 12:21:43
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
18页 576K
描述
LOGARITHMIC AMPLIFIER

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中文翻译

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TL441-EP 数据手册

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SGLS268 − OCTOBER 2004  
NS PACKAGE  
(TOP VIEW)  
D
Controlled Baseline  
− One Assembly/Test Site, One Fabrication  
Site  
NC  
C
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
A2  
D
D
Extended Temperature Performance of  
−55°C to 125°C  
Enhanced Diminishing Manufacturing  
Sources (DMS) Support  
C
V
V
B2  
CC −  
C
C
B2′  
A2′  
A1  
GND  
B1  
Z
Z
B2  
Y
Y
D
D
D
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D
Enhanced Product-Change Notification  
†
A2  
Qualification Pedigree  
CC +  
Excellent Dynamic Range  
Wide Bandwidth  
NC — No internal connection  
Built-In Temperature Compensation  
Log Linearity (30-dB Sections) . . . 1 dB Typ  
Wide Input Voltage Range  
†
Component qualification in accordance with JEDEC and industry  
standards to ensure reliable operation over an extended  
temperature range. This includes, but is not limited to, Highly  
Accelerated Stress Test (HAST) or biased 85/85, temperature  
cycle, autoclave or unbiased HAST, electromigration, bond  
intermetallic life, and mold compound life. Such qualification  
testing should not be viewed as justifying use of this component  
beyond specified performance and environmental limits.  
DESCRIPTION  
This amplifier circuit contains four 30-dB logarithmic stages. Gain in each stage is such that the output of each  
stage is proportional to the logarithm of the input voltage over the 30-dB input voltage range. Each half of the  
circuit contains two of these 30-dB stages summed together in one differential output that is proportional to the  
sum of the logarithms of the input voltages of the two stages. The four stages may be interconnected to obtain  
a theoretical input voltage range of 120-dB. In practice, this permits the input voltage range typically to be greater  
than 80-dB with log linearity of 0.5-dB (see application data). Bandwidth is from dc to 40 MHz.  
This circuit is useful in data compression and analog compensation. This logarithmic amplifier is used in log IF  
circuitry as well as video and log amplifiers.  
The TL441M is characterized for operation over the full military temperature range of −55°C to 125°C.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
T
A
PACKAGE  
−55°C to 125°C  
SOP (NS) Tape and reel  
TL441MNSREP  
TL441MEP  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines  
are available at www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 2004, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...18

中文翻译

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