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| 型号： | THS4022CIDGN |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封装： | GREEN, PLASTIC, MSOP-8 |
| 文件页数： | 28/28页 |
| 文件大小： | 948K |
| 代理商： | THS4022CIDGN |
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APPLICATION INFORMATION
Theory of Operation
IN– (2)
IN+(3)
NULL (1)
NULL (8)
(6)OUT
(4)V
CC–
(7)V
CC+
S0276-01
Noise Calculations and Noise Figure
SLOS265C – SEPTEMBER 1999 – REVISED JULY 2007
The THS402x is a high-speed operational amplifier configured in a voltage feedback architecture. It is built using
a 30-V, dielectrically isolated, complementary bipolar process with NPN and PNP transistors possessing fT of
several GHz. This results in an exceptionally high-performance amplifier that has a wide bandwidth, high slew
rate, fast settling time, and low distortion. A simplified schematic is shown in Figure 30.
Figure 30. THS4021 Simplified Schematic
Noise can cause errors on very small signals. This is especially true when amplifying small signals, where
signal-to-noise ratio (SNR) is very important. The noise model for the THS402x is shown in Figure 31. This
model includes all of the noise sources as follows:
e
n = Amplifier internal voltage noise (nV/√Hz)
IN+ = Noninverting current noise (pA/√Hz)
IN– = Inverting current noise (pA/√Hz)
e
Rx = Thermal voltage noise associated with each resistor (eRx = 4 kTRx)
Copyright 1999–2007, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS4022D | 制造商:TI 制造商全称:Texas Instruments 功能描述:350-MHz LOW-NOISE HIGH-SPEED AMPLIFIERS |
| THS4022DGN | 制造商:TI 制造商全称:Texas Instruments 功能描述:350-MHz LOW-NOISE HIGH-SPEED AMPLIFIERS |
| THS4022EVM | 功能描述:放大器 IC 开发工具 THS4022 Hi-Spd Amp 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 |
| THS4022ID | 功能描述:高速运算放大器 Dual 350MHz 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 |
| THS4022IDG4 | 功能描述:高速运算放大器 Dual 350MHz 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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