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| 型号： | THS4211DRBTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封装： | GREEN, PLASTIC, SON-8 |
| 文件页数： | 11/47页 |
| 文件大小： | 1197K |
| 代理商： | THS4211DRBTG4 |
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_
+
THS4211
Rf
392
49.9
100 pF
0.1
F 6.8 F
-VS
-5 V
Rg
50
Source
+
VI
100 pF
0.1
F 6.8 F
+
+VS
5 V
VO
499
392
www.ti.com ................................................................................................................................... SLOS400E – SEPTEMBER 2002 – REVISED SEPTEMBER 2009
APPLICATION INFORMATION
HIGH-SPEED OPERATIONAL AMPLIFIERS
WIDEBAND, NONINVERTING OPERATION
The
THS4211
and
the
THS4215
operational
The THS4211 and the THS4215 are unity-gain
amplifiers set new performance levels, combining low
stable,
1-GHz
voltage-feedback
operational
distortion, high slew rates, low noise, and a unity-gain
amplifiers, with and without power-down capability,
bandwidth in excess of 1 GHz. To achieve the full
designed to operate from a single 5-V to 15-V power
performance of the amplifier, careful attention must
supply.
be paid to printed-circuit board (PCB) layout and
Figure 75 shows the noninverting gain configuration
component selection.
of 2 V/V used to demonstrate the typical performance
The
THS4215
provides
a
power-down
mode,
curves. Most of the curves were characterized using
providing the ability to save power when the amplifier
signal sources with 50-
source impedance, and with
is inactive. A reference pin is provided to allow the
measurement equipment presenting a 50-
load
user the flexibility to control the threshold levels of the
impedance. In Figure 75, the 49.9-
shunt resistor at
power-down control pin.
the VIN terminal matches the source impedance of the
test generator. The total 499-
load at the output,
combined with the 784-
total feedback-network
Applications Section Contents
load, presents the THS4211 and THS4215 with an
Wideband, Noninverting Operation
effective output load of 305
for the circuit shown in
Wideband, Inverting Gain Operation
Single-Supply Operation
Voltage-feedback amplifiers, unlike current-feedback
Saving Power with Power-Down Functionality and
designs, can use a wide range of resistors values to
Setting Threshold Levels with the Reference Pin
set their gain with minimal impact on their stability
Power
Supply
Decoupling
Techniques
and
and frequency response. Larger-valued resistors
Recommendations
decrease the loading effect of the feedback network
Using the THS4211 as a DAC Output Buffer
on the output of the amplifier, but this enhancement
comes at the expense of additional noise and
Driving an ADC with the THS4211
potentially lower bandwidth. Feedback-resistor values
Active Filtering with the THS4211
between 392
and 1 k are recommended for most
Building a Low-Noise Receiver with the THS4211
applications.
Linearity:
Definitions,
Terminology,
Circuit
Techniques and Design Tradeoffs
An Abbreviated Analysis of Noise in Amplifiers
Driving Capacitive Loads
Printed-Circuit
Board
Layout
Techniques
for
Optimal Performance
Power Dissipation and Thermal Considerations
Performance vs Package Options
Evaluation
Fixtures,
Spice
Models,
and
Applications Support
Additional Reference Material
Mechanical Package Drawings
space
Figure 75. Wideband, Noninverting Gain
Configuration
Copyright 2002–2009, Texas Instruments Incorporated
19
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS4211DRG4 | 功能描述:高速运算放大器 Super-Fast Ultr-Lo- Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| THS4211EVM | 功能描述:放大器 IC 开发工具 THS4211 Eval Mod RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| THS4211EVM-UG | 功能描述:放大器 IC 开发工具 THS4211 Eval Mod w/ Unity Gain RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| THS4215 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW-DISTORTION HIGH-SPEED VOLTAGE FEEDBACK AMPLIFIER |
| THS4215D | 功能描述:高速运算放大器 Super-Fast Ultr-Lo- Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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