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LTC1966CMS8 PDF预览

LTC1966CMS8

更新时间: 2024-02-01 05:43:26
品牌 Logo 应用领域
凌特 - Linear 转换器光电二极管
页数 文件大小 规格书
32页 446K
描述
Precision Micropower, SIGMA RMS-to-DC Converter

LTC1966CMS8 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:TSSOP,
针数:8Reach Compliance Code:compliant
风险等级:5.07转换器类型:RMS TO DC CONVERTER
JESD-30 代码:S-PDSO-G8JESD-609代码:e3
长度:3 mm最大线性误差 (EL):0.15%
湿度敏感等级:1最大负输入电压:-5.5 V
最大负电源电压:-5.5 V最小负电源电压:
标称负供电电压:-5 V功能数量:1
端子数量:8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封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
最大正输入电压:5.5 V认证状态:Not Qualified
座面最大高度:1.1 mm最大供电电压:5.5 V
最小供电电压:2.7 V标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
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
宽度:3 mmBase Number Matches:1

LTC1966CMS8 数据手册

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LTC1966  
Precision Micropower,  
∆Σ RMS-to-DC Converter  
U
FEATURES  
DESCRIPTIO  
The LTC®1966 is a true RMS-to-DC converter that utilizes  
an innovative patented ∆Σ computational technique. The  
internaldelta-sigmacircuitryoftheLTC1966makesitsim-  
pler to use, more accurate, lower power and dramatically  
more flexible than conventional log-antilog RMS-to-DC  
converters.  
No-Hassle Simplicity:  
True RMS-DC Conversion with Only One External  
Capacitor  
Delta Sigma Conversion Technology  
High Accuracy:  
0.1% Gain Accuracy from 50Hz to 1kHz  
0.25% Total Error from 50Hz to 1kHz  
High Linearity:  
The LTC1966 accepts single ended or differential input  
signals (for EMI/RFI rejection) and supports crest factors  
up to 4. Common mode input range is rail-to-rail. Differ-  
ential input range is 1VPEAK, and offers unprecedented lin-  
earity. Unlike previously available RMS-to-DC converters,  
the superior linearity of the LTC1966 allows hassle-free  
system calibration at any input voltage.  
0.02% Linearity Allows Simple System Calibration  
Low Supply Current:  
155µA Typ, 170µA Max  
Ultralow Shutdown Current:  
0.1µA  
Constant Bandwidth:  
Independent of Input Voltage  
800kHz –3dB, 6kHz ±1%  
Flexible Supplies:  
2.7V to 5.5V Single Supply  
Up to ±5.5V Dual Supply  
Flexible Inputs:  
The LTC1966 also has a rail-to-rail output with a separate  
output reference pin providing flexible level shifting. The  
LTC1966 operates on a single power supply from 2.7V to  
5.5V or dual supplies up to ±5.5V. A low power shutdown  
mode reduces supply current to 0.5µA.  
The LTC1966 is insensitive to PC board soldering and  
stresses, as well as operating temperature. The LTC1966  
is packaged in the space-saving MSOP package which is  
ideal for portable applications.  
Differential or Single Ended  
Rail-to-Rail Common Mode Voltage Range  
Up to 1VPEAK Differential Voltage  
Flexible Output:  
U
Rail-to-Rail Output  
APPLICATIO S  
Separate Output Reference Pin Allows Level Shifting  
Small Size:  
True RMS Digital Multimeters and Panel Meters  
True RMS AC + DC Measurements  
Space Saving 8-Pin MSOP Package  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Protected under U.S. Patent Numbers 6,359,576 and 6,362,677  
U
TYPICAL APPLICATIO  
Quantum Leap in Linearity Performance  
0.2  
LTC1966, Σ  
Single Supply RMS-to-DC Converter  
0
2.7V TO 5.5V  
–0.2  
–0.4  
V
DD  
OUTPUT  
LTC1966  
OUT RTN  
GND  
IN1  
IN2  
C
DIFFERENTIAL  
INPUT  
+
AVE  
V
OUT  
–0.6  
–0.8  
–1.0  
CONVENTIONAL  
LOG/ANTILOG  
1µF  
1966 TA01  
EN  
V
SS  
0.1µF  
OPT. AC  
COUPLING  
60Hz SINEWAVES  
50 100 150 200 250 300 350 400 450 500  
(mV AC  
0
V
)
RMS  
IN  
1966 TA01b  
sn1966 1966fas  
1

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