參數(shù)資料
型號： THS3001HVCD
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： GREEN, PLASTIC, MS-012AA, SOIC-8
文件頁數(shù)： 11/36頁
文件大?。?/td> 1065K
代理商： THS3001HVCD
www.ti.com
OFFSET VOLTAGE
SLOS217G – JULY 1998 – REVISED MARCH 2008
Consistent with current-feedback amplifiers, increasing the gain is best accomplished by changing the gain
resistor, not the feedback resistor. This is because the bandwidth of the amplifier is dominated by the feedback
resistor value and internal dominant-pole capacitor. The ability to control the amplifier gain independent of the
bandwidth constitutes a major advantage of current-feedback amplifiers over conventional voltage-feedback
amplifiers. Therefore, once a frequency response is found suitable to a particular application, adjust the value of
the gain resistor to increase or decrease the overall amplifier gain.
Finally, it is important to realize the effects of the feedback resistance on distortion. Increasing the resistance
decreases the loop gain and increases the distortion. It is also important to know that decreasing load impedance
increases total harmonic distortion (THD). Typically, the third-order harmonic distortion increases more than the
second-order harmonic distortion.
Table 1. Recommended Resistor Values for Optimum
Frequency Response
GAIN
RF for VCC = ±15 V
RF for VCC = ±5 V
1
1 k
1 k
2, -1
680
750
2
620
620
5
560
620
The output offset voltage, (VOO) is the sum of the input offset voltage (VIO) and both input bias currents (IIB) times
the corresponding gains. The following schematic and formula can be used to calculate the output offset voltage:
Figure 48. Output Offset Voltage Model
Copyright 1998–2008, Texas Instruments Incorporated
19
Product Folder Link(s): THS3001
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS3001HVCDGN 功能描述:高速運算放大器 420-MHz Curr Feedback Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS3001HVCDGNG4 功能描述:高速運算放大器 420-MHz Curr Feedback Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS3001HVCDGNR 功能描述:高速運算放大器 420 MHz Curr Feedback Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS3001HVCDGNRG4 功能描述:高速運算放大器 420 MHz Curr Feedback Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS3001HVCDRG4 制造商:Texas Instruments 功能描述:OP AMP SGL CURRENT FDBK 18.5V/37V 8SOIC - Tape and Reel
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