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LT1794ISW PDF预览

LT1794ISW

更新时间: 2024-02-08 04:44:00
品牌 Logo 应用领域
凌特 - Linear 放大器光电二极管驱动
页数 文件大小 规格书
20页 276K
描述
Dual 500mA, 200MHz xDSL Line Driver Amplifier

LT1794ISW 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:SOP,
针数:20Reach Compliance Code:compliant
风险等级:5.63放大器类型:OPERATIONAL AMPLIFIER
最大平均偏置电流 (IIB):6 µA标称共模抑制比:83 dB
最大输入失调电压:7500 µVJESD-30 代码:R-PDSO-G20
JESD-609代码:e3长度:12.8 mm
湿度敏感等级:1负供电电压上限:-18 V
标称负供电电压 (Vsup):-5 V功能数量:2
端子数量:20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:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:2.65 mm
标称压摆率:200 V/us子类别:Operational Amplifier
供电电压上限:18 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:BIPOLAR
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
标称均一增益带宽:200000 kHz宽度:7.5 mm
Base Number Matches:1

LT1794ISW 数据手册

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LT1794  
Dual 500mA, 200MHz  
xDSL Line Driver Amplifier  
U
FEATURES  
DESCRIPTIO  
TheLT®1794isa500mAminimumoutputcurrent,dualop  
amp with outstanding distortion performance. The ampli-  
fiersaregain-of-tenstable, butcanbeeasilycompensated  
for lower gains. The extended output swing allows for  
lowersupplyrailstoreducesystempower. Supplycurrent  
is set with an external resistor to optimize power dissipa-  
tion. The LT1794 features balanced, high impedance in-  
puts with low input bias current and input offset voltage.  
Active termination is easily implemented for further sys-  
tempowerreduction.Short-circuitprotectionandthermal  
shutdown insure the device’s ruggedness.  
Exceeds All Requirements For Full Rate,  
Downstream ADSL Line Drivers  
±500mA Minimum IOUT  
±11.1V Output Swing, VS = ±12V, RL = 100Ω  
±10.9V Output Swing, VS = ±12V, IL = 250mA  
Low Distortion: 82dBc at 1MHz, 2VP-P Into 50Ω  
Power Saving Adjustable Supply Current  
Power Enhanced Small Footprint Packages:  
20-Lead TSSOP and 20-Lead SW  
200MHz Gain Bandwidth  
500V/µs Slew Rate  
Specified at ±15V, ±12V and ±5V  
The outputs drive a 100load to ±11.1V with ±12V  
supplies, and ±10.9V with a 250mA load. The LT1794,  
with its increased swing on lower supplies, can be used to  
upgrade LT1795 line driver applications.  
U
APPLICATIO S  
High Density ADSL Central Office Line Drivers  
High Efficiency ADSL, HDSL2, G.lite,  
The LT1794 is available in the very small, thermally  
enhanced, 20-lead TSSOP for maximum port density in  
line driver applications. The 20-lead SW is also available.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
SHDSL Line Drivers  
Buffers  
Test Equipment Amplifiers  
Cable Drivers  
U
TYPICAL APPLICATIO  
High Efficiency ±12V Supply ADSL Central Office Line Driver  
12V  
R
BIAS  
24.9k  
+IN  
+
SHDN  
12.7  
1/2  
LT1794  
1k  
1:2*  
110Ω  
110Ω  
100Ω  
1000pF  
1k  
*COILCRAFT X8390-A OR EQUIVALENT  
= 10mA PER AMPLIFIER  
I
SUPPLY  
12.7Ω  
1/2  
LT1794  
WITH R  
= 24.9k  
BIAS  
SHDNREF  
–IN  
+
1794 TA01  
–12V  
1

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