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LTC1968CMS8 PDF预览

LTC1968CMS8

更新时间: 2024-02-26 15:23:32
品牌 Logo 应用领域
凌特 - Linear 转换器模拟特殊功能转换器光电二极管
页数 文件大小 规格书
28页 294K
描述
Precision Wide Bandwidth, RMS-to-DC Converter

LTC1968CMS8 技术参数

是否Rohs认证: 不符合生命周期:Active
包装说明:TSSOP,Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.75转换器类型:RMS TO DC CONVERTER
JESD-30 代码:R-PDSO-G8JESD-609代码:e0
长度:3 mm最大线性误差 (EL):0.15%
湿度敏感等级:1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:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):255
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:4.5 V标称供电电压:5 V
表面贴装:YES温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)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:40宽度:3 mm
Base Number Matches:1

LTC1968CMS8 数据手册

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LTC1968  
Precision Wide Bandwidth,  
RMS-to-DC Converter  
U
FEATURES  
DESCRIPTIO  
The LTC®1968 is a true RMS-to-DC converter that uses an  
innovativedelta-sigmacomputationaltechnique.Theben-  
efits of the LTC1968 proprietary architecture, when com-  
pared to conventional log-antilog RMS-to-DC converters,  
are higher linearity and accuracy, bandwidth independent  
of amplitude and improved temperature behavior.  
High Linearity:  
0.02% Linearity Allows Simple System Calibration  
Wide Input Bandwidth:  
Bandwidth to 1% Additional Gain Error: 500kHz  
Bandwidth to 0.1% Additional Gain Error: 150kHz  
3dB Bandwidth Independent of Input Voltage  
Amplitude  
TheLTC1968operateswithsingle-endedordifferentialin-  
put signals and accurately supports crest factors up to 4.  
Common mode input range is rail-to-rail. Differential in-  
putrangeis1VPEAK,andoffersunprecedentedlinearity.The  
LTC1968 allows hassle-free system calibration at any in-  
put voltage.  
No-Hassle Simplicity:  
True RMS-DC Conversion with Only One External  
Capacitor  
Delta Sigma Conversion Technology  
Ultralow Shutdown Current:  
0.1µA  
Flexible Inputs:  
Differential or Single Ended  
Rail-to-Rail Common Mode Voltage Range  
Up to 1VPEAK Differential Voltage  
Flexible Output:  
Rail-to-Rail Output  
Separate Output Reference Pin Allows Level Shifting  
Small Size:  
The LTC1968 has a rail-to-rail output with a separate out-  
put reference pin providing flexible level shifting; it oper-  
atesonasinglepowersupplyfrom4.5Vto5.5V.Alowpower  
shutdown mode reduces supply current to 0.1µA.  
TheLTC1968ispackagedinthespace-savingMSOPpack-  
age, which is ideal for portable applications.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Protected under U.S. Patent Numbers 6,359,576, 6,362,677 and 6,516,291  
Space Saving 8-Pin MSOP Package  
U
APPLICATIO S  
True RMS Digital Multimeters and Panel Meters  
True RMS AC + DC Measurements  
U
TYPICAL APPLICATIO  
Linearity Performance  
0.2  
Single Supply RMS-to-DC Converter  
LTC1968, ∆Σ  
0
4.5V TO 5.5V  
–0.2  
–0.4  
+
V
IN1  
IN2  
OUTPUT  
LTC1968  
C
AVE  
10µF  
DIFFERENTIAL  
INPUT  
+
V
OUT  
OUT RTN  
GND  
–0.6  
–0.8  
–1.0  
CONVENTIONAL  
LOG/ANTILOG  
EN  
0.1µF  
OPT. AC  
COUPLING  
1968 TA01  
60Hz SINEWAVE  
100 200  
0
300  
400  
500  
1968 TA01b  
V
IN  
(mV AC  
)
RMS  
1968f  
1

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