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参数资料
| 型号： | LT1794CFE |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | Dual 500mA, 200MHz xDSL Line Driver Amplifier |
| 中文描述： | DUAL OP-AMP, 7500 uV OFFSET-MAX, 200 MHz BAND WIDTH, PDSO20 |
| 封装： | 4.40 MM, EXPOSED PAD, PLASTIC, TSSOP-20 |
| 文件页数： | 1/20页 |
| 文件大小： | 275K |
| 代理商： | LT1794CFE |
1
LT1794
Dual 500mA, 200MHz
xDSL Line Driver Amplifier
I
Exceeds All Requirements For Full Rate,
Downstream ADSL Line Drivers
I
±
500mA Minimum I
OUT
I
±
11.1V Output Swing, V
S
=
±
12V, R
L
= 100
I
±
10.9V Output Swing, V
S
=
±
12V, I
L
= 250mA
I
Low Distortion: –82dBc at 1MHz, 2V
P-P
Into 50
I
Power Saving Adjustable Supply Current
I
Power Enhanced Small Footprint Packages:
20-Lead TSSOP and 20-Lead SW
I
200MHz Gain Bandwidth
I
500V/
μ
s Slew Rate
I
Specified at
±
15V,
±
12V and
±
5V
APPLICATIU
I
High Density ADSL Central Office Line Drivers
I
High Efficiency ADSL, HDSL2, G.lite,
SHDSL Line Drivers
I
Buffers
I
Test Equipment Amplifiers
I
Cable Drivers
The LT
1794 is a 500mA minimum output current, dual op
amp with outstanding distortion performance. The ampli-
fiers are gain-of-ten stable, but can be easily compensated
for lower gains. The extended output swing allows for
lower supply rails to reduce system power. Supply current
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-
tem power reduction. Short-circuit protection and thermal
shutdown insure the device’s ruggedness.
The outputs drive a 100
load 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.
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.
High Efficiency
±
12V Supply ADSL Central Office Line Driver
1794 TA01
+
–
1/2
LT1794
–IN
–
+
1/2
LT1794
+IN
12V
SHDN
–12V
12.7
R
BIAS
24.9k
1:2*
110
1000pF
110
1k
1k
12.7
SHDNREF
100
*COILCRAFT X8390-A OR EQUIVALENT
I
= 10mA PER AMPLIFIER
WITH R
BIAS
= 24.9k
FEATURES
DESCRIPTIOU
TYPICAL APPLICATIO
U
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1794CFE#PBF | 功能描述:IC AMP XDSL LINE DRIVER 20TSSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
| LT1794CFE#TR | 功能描述:IC OPAMP 200MHZ DUAL 20-TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
| LT1794CFE#TRPBF | 功能描述:IC AMP XDSL LINE DRIVER 20TSSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
| LT1794CSW | 功能描述:IC OPAMP 200MHZ DUAL 20-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
| LT1794CSW#PBF | 功能描述:IC OPAMP 200MHZ DUAL 20-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,140 系列:AU 类型:收发器 驱动器/接收器数:1/1 规程:CAN 电源电压:5.3 V ~ 27 V 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 其它名称:935267940512AU5790D14AU5790D14-ND |
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