參數(shù)資料
型號(hào)： THS3096DR
廠商： Texas Instruments, Inc.
英文描述： HIGH-VOLTAGE, LOW-DISTORTION, CURRENT-FEEDBACK OPERATIONAL AMPLIFIERS
中文描述： 高壓，低失真，電流反饋運(yùn)算放大器
文件頁(yè)數(shù)： 19/34頁(yè)
文件大?。?/td> 1605K
代理商： THS3096DR
www.ti.com
_
+
V
S
V
S
49.9
715
Ferrite Bead
1
μ
F
178
V
S
100
LOAD
+
75
75
75
75
75
n Lines
V
O(1)
V
O(n)
75-
Transmission Line
V
I
909
909
15 V
15 V
Driving Capacitive Loads
0
5
10
15
20
25
30
35
40
45
10
100
C
L
Capacitive Load pF
RI
Gain = 5,
V
S
=
±
15 V
+
178
715
R
ISO
C
L
_
+
V
S
V
S
49.9
715
5.11
1
μ
F
178
V
S
100
LOAD
R
ISO
_
+
V
S
V
S
49.9
5.11
1
μ
F
178
V
S
27 pF
715
R
F
R
G
715
100
LOAD
R
IN
THS3092
THS3096
SLOS428A–DECEMBER 2003–REVISED FEBRUARY 2004
Figure 60.
Figure 57. Video Distribution Amplifier
Application
Placing a small series resistor, R
ISO
, between the
amplifier’s output and the capacitive load, as shown
in Figure 59, is an easy way of isolating the load
capacitance.
Applications such as FET line drivers can be highly
capacitive
and
cause
high-speed amplifiers.
stability
problems
for
Using a ferrite chip in place of R
ISO
, as shown in
Figure 60, is another approach of isolating the output
of the amplifier. The ferrite's impedance characteristic
versus frequency is useful to maintain the low fre-
quency load independence of the amplifier while
isolating the phase shift caused by the capacitance at
high frequency. Use a ferrite with similar impedance
to R
ISO
, 20
- 50
, at 100 MHz and low impedance
at dc.
Figure 58 through Figure 63 show recommended
methods for driving capacitive loads. The basic idea
is to use a resistor or ferrite chip to isolate the phase
shift at high frequency caused by the capacitive load
from the amplifier’s feedback path. See Figure 58 for
recommended resistor values versus capacitive load.
Figure 61 shows another method used to maintain
the low frequency load independence of the amplifier
while isolating the phase shift caused by the capaci-
tance at high frequency. At low frequency, feedback
is mainly from the load side of R
ISO
. At high fre-
quency, the feedback is mainly via the 27-pF capaci-
tor. The resistor R
IN
in series with the negative input
is used to stabilize the amplifier and should be equal
to the recommended value of R
F
at unity gain.
Replacing R
IN
with a ferrite of similar impedance at
about 100 MHz as shown in Figure 62 gives similar
results with reduced dc offset and low frequency
noise. (See the
ADDITIONAL REFERENCE MA-
TERIAL
section
for
Expanding
current-feedback amplifiers.)
the
usability
of
Figure 58. Recommended R
ISO
vs Capacitive Load
Figure 59.
Figure 61.
19
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參數(shù)描述
THS3096DRG4 功能描述:高速運(yùn)算放大器 Dual Hig-Vltg Low Distortion 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
THS3096EVM 功能描述:放大器 IC 開發(fā)工具 THS3096 Eval Mod RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
THS3096PWP 功能描述:高速運(yùn)算放大器 Dual Hig-Vltg Low Distortion 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
THS3096PWPG4 功能描述:高速運(yùn)算放大器 Dual Hig-Vltg Low Distortion 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
THS3096PWPR 功能描述:高速運(yùn)算放大器 Dual Hig-Vltg Low Distortion 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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