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參數(shù)資料
| 型號(hào)： | THS3061DG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數(shù)： | 11/33頁 |
| 文件大?。?/td> | 1015K |
| 代理商： | THS3061DG4 |
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+
–
Rf
VO
Rg
R2
R1
C1
RA
VI
THS306x
For Stable Operation:
R2
R1 || RA ≥
Rf
Rg
sR1C1
(
)
Rf
Rg
1 +
VO VI
VI
C2
R2
R1
C1
Rf
Rg
R1 = R2 = R
C1 = C2 = C
Q = Peaking Factor
(Butterworth Q = 0.707)
(
=
1
Q
2 –
)
Rg
Rf
_
+
f
–3dB +
1
2pRC
+
–
75
75
75
75
75
N Lines
VO1
VON
THS306x
75-
Transmission Line
VI
Rf
Rg
+
–
C1
Rf
Rg
VO
VI
THS306x
V
O
V
I
+
R
f
Rg
S
)
1
R
f
C1
S
www.ti.com
SLOS394B – JULY 2002 – REVISED NOVEMBER 2009
If a multiple-pole filter is required, a Sallen-Key filter
can work very well with CFB amplifiers. This is
because the filtering elements are not in the negative
feedback loop and stability is not compromised.
Because
of
their
high
slew
rates
and
high
bandwidths, CFB amplifiers can pass very accurate
signals and help minimize distortion. An example is
shown in Figure 55.
Figure 57. Noninverting CFB Integrator
The THS306x may also be employed as a very good
video-distribution
amplifier.
One
characteristic
of
distribution amplifiers is the fact that the differential
phase (dP) and the differential gain (dG) are
compromised as the number of lines increases and
the closed-loop gain increases. Be sure to use
Figure 55. 2-Pole Low-Pass Sallen-Key Filter
termination
resistors
throughout
the
distribution
system to minimize reflections and capacitive loading.
There are two simple ways to create an integrator
with a CFB amplifier. The first, shown in Figure 56,
adds a resistor in series with the capacitor. This is
acceptable, because at high frequencies, the resistor
is dominant and the feedback impedance never drops
below the resistor value. The second, shown in
Figure 57, uses positive feedback to create the
integration. Caution is advised because oscillations
can occur due to the positive feedback.
Figure 58. Video Distribution Amplifier
Application
Figure 56. Inverting CFB Integrator
Copyright 2002–2009, Texas Instruments Incorporated
19
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| THS3061DGNR | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| THS3061DGN | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| THS3061DR | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| THS3061D | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| THS3061DGNG4 | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| THS3061DGN | 功能描述:高速運(yùn)算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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 |
| THS3061DGNG4 | 功能描述:高速運(yùn)算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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 |
| THS3061DGNR | 功能描述:高速運(yùn)算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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 |
| THS3061DGNRG4 | 功能描述:高速運(yùn)算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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 |
| THS3061DR | 功能描述:高速運(yùn)算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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 |
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