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參數資料
| 型號： | THS4275DGNRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封裝： | POWERPAD, PLASTIC, MSOP-8 |
| 文件頁數： | 13/49頁 |
| 文件大小： | 1515K |
| 代理商： | THS4275DGNRG4 |
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_
+
THS4271
Rf
249
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
249
SLOS397F – JULY 2002 – REVISED OCTOBER 2009
www.ti.com
HIGH-SPEED OPERATIONAL AMPLIFIERS
WIDEBAND, NONINVERTING OPERATION
The
THS4271
and
the
THS4275
operational
The THS4271 and the THS4275 are unity gain
amplifiers set new performance levels, combining low
stable,
1.4-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 is the noninverting gain configuration of 2
component selection.
V/V used to demonstrate the typical performance
The
THS4275
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,
Applications Section Contents
combined with the 498-
total feedback network load,
presents
the
THS4271
and
THS4275
with
an
Wideband, Noninverting Operation
effective output load of 249
for the circuit of
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 THS4271 as a DAC Output Buffer
on the output of the amplifier, but this enhancement
Driving an ADC With the THS4271
comes at the expense of additional noise and
potentially lower bandwidth. Feedback resistor values
Active Filtering With the THS4271
between 249
and 1 k are recommended for most
Building a Low-Noise Receiver with the THS4271
situations.
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
space
Gain Configuration
20
Copyright 2002–2009, Texas Instruments Incorporated
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相關代理商/技術參數 |
參數描述 |
|---|---|
| THS4275DR | 功能描述:高速運算放大器 Super-Fast Ultra-Low Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS4275DRBR | 功能描述:高速運算放大器 Super-Fast Ultra-Low Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS4275DRBRG4 | 功能描述:高速運算放大器 Super-Fast Ultra-Low Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS4275DRBT | 功能描述:高速運算放大器 Super-Fast Ultra-Low Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS4275DRBTG4 | 功能描述:高速運算放大器 Super-Fast Ultra-Low Distortion Hi-Speed RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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