參數(shù)資料
型號： THS6043CD
廠商： Texas Instruments, Inc.
英文描述： 350 mA, 【12 V ADSL CPE LINE DRIVERS
中文描述： 350毫安，【12伏ADSL終端線路驅(qū)動器
文件頁數(shù)： 28/33頁
文件大小： 509K
代理商： THS6043CD
THS6042, THS6043
350 mA,
±
12 V ADSL CPE LINE DRIVERS
SLOS264G
–
MARCH 2000
–
REVISED DECEMBER 2001
28
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
driving a capacitive load
Driving capacitive loads with high performance amplifiers is not a problem as long as certain precautions are
taken. The first is to realize that the THS6042/3 has been internally compensated to maximize its bandwidth
and slew rate performance. When the amplifier is compensated in this manner, capacitive loading directly on
the output decreases the device
’
s phase margin leading to high frequency ringing or oscillations. Therefore, for
capacitive loads of greater than 5 pF, it is recommended that a resistor be placed in series with the output of
the amplifier, as shown in Figure 49. Keep in mind that stray capacitance on the output is also considered
capacitive loading, whether or not it is there on purpose. A minimum value of 5
should work well for most
applications. In ADSL systems, setting the series resistor value to 12.4
both isolates any capacitance loading
and provides the proper line impedance matching at the source end.
+
_
C(Stray) + CL
750
Input
Output
100
12.4
Figure 49. Driving a Capacitive Load
general configurations
A common error for the first-time CFB user is to create a unity gain buffer amplifier by shorting the output directly
to the inverting input. A CFB amplifier in this configuration oscillates and is
not
recommended. The THS6042/3,
like all CFB amplifiers,
must
have a feedback resistor for stable operation. Additionally, placing capacitors
directly from the output to the inverting input is not recommended. This is because, at high frequencies, a
capacitor has a very low impedance. This results in an unstable amplifier and should not be considered when
using a current-feedback amplifier. Because of this, integrators and simple low-pass filters, which are easily
implemented on a VFB amplifier, have to be designed slightly differently. If filtering is required, simply place an
RC-filter at the noninverting terminal of the operational-amplifier (see Figure 50).
VI
VO
C1
+
–
RG
RF
R1
f
–
3dB
1
2 R1C1
VO
VI
1
RF
RG
1
sR1C1
1
Figure 50. Single-Pole Low-Pass Filter
相關PDF資料
PDF描述
THS6043EVM 350 mA, 【12 V ADSL CPE LINE DRIVERS
THS6062D LOW-NOISE ADSL DUAL DIFFERENTIAL RECEIVER
THS6062DGN LOW-NOISE ADSL DUAL DIFFERENTIAL RECEIVER
THS6062EVM RECTIFIER SCHOTTKY 5A30V DO201AD
THS6072D LOW-POWER ADSL DIFFERENTIAL RECEIVER
相關代理商/技術參數(shù)
參數(shù)描述
THS6043CDG4 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn 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
THS6043CDR 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn 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
THS6043CDRG4 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn 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
THS6043CPWP 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn 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
THS6043CPWPG4 功能描述:高速運算放大器 350-mA +/-12V ADSL CPE Ln Drv w/Shtdwn 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
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*