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参数资料
| 型号： | THS3062DG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| 封装： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件页数： | 5/33页 |
| 文件大小： | 1015K |
| 代理商： | THS3062DG4 |
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www.ti.com
SLOS394B – JULY 2002 – REVISED NOVEMBER 2009
APPLICATION INFORMATION
maintain frequency response characteristics. For
most applications, a feedback-resistor value of 750
INTRODUCTION
is
recommended—a
good
compromise
between
The THS306x is a high-speed operational amplifier
bandwidth and phase margin that yields a very stable
configured in a current-feedback architecture. The
amplifier.
device is built using Texas Instruments' BiCOM-I
As shown in Table 1, to maintain the highest
process,
a
30-V,
dielectrically
isolated,
bandwidth with increasing gain, the feedback resistor
complementary bipolar process with NPN and PNP
is reduced. The advantage of dropping the feedback
transistors possessing fTs of several GHz. This
resistance (and the gain-resistor value) is that the
configuration
implements
an
exceptionally
noise of the system is also reduced compared to no
high-performance
amplifier
that
has
a
wide
reduction of these resistor values (see NOISE
bandwidth, high slew rate, fast settling time, and low
CALCULATIONS). Thus, keeping the bandwidth as
distortion.
high as possible maintains very good distortion
performance of the amplifier by keeping the excess
MAXIMUM SLEW RATE FOR REPETITIVE
loop gain as high as possible.
SIGNALS
The THS3061 and THS3062 are recommended for
Table 1. Recommended Resistor Values for
high slew rate, pulsed applications where the internal
Optimum Frequency Response
nodes of the amplifier have time to stabilize between
GAIN
RF for VCC = ±15 V
RF for VCC = ±5 V
pulses.It is recommended to have at least a 20-ns
1
750
750
delay between pulses.
2, –1
560
560
The THS3061 and THS3062 are not recommended
5
357
383
for applications with repetitive signals (sine, square,
10
200
200
sawtooth, or other types) that exceed 900 V/
μs. Using
this device in these types of applications results in an
Care must be taken to not set these values too low.
excessive current draw from the power supply and
The amplifier's output must drive the feedback
possible device damage. For applications with a high
resistance (and gain resistance), and this may place
slew rate and repetitive signals, the THS3091 and
a burden on the amplifier. The end result is that
distortion
may
actually
increase
due
to
the
(duals) are recommended instead.
low-impedance load presented to the amplifier. The
designer
must
carefully
manage
the
amplifier
RECOMMENDED FEEDBACK AND GAIN
bandwidth and the associated loading effects for
RESISTOR VALUES
optimum performance.
As with all current-feedback amplifiers, the bandwidth
The
THS3061/62
amplifiers
exhibit
very
good
of the THS306x is an inversely proportional function
distortion performance and bandwidth, and can use
of
the
value
of
the
feedback
resistor.
The
power
supplies
up
to
15
V.
The
excellent
recommended
resistors
for
optimum
frequency
current-drive capability of up to 145 mA into a 50-
response are shown in Table 1. These should be
load
allows
many
versatile
applications.
One
used as a starting point, and once optimum values
application is driving a twisted pair line (that is, a
are found, 1% tolerance resistors should be used to
telephone line). Figure 48 shows a simple circuit for
driving a twisted pair differentially.
Copyright 2002–2009, Texas Instruments Incorporated
13
相关PDF资料 |
PDF描述 |
|---|---|
| THS3062DDA | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| THS3062DGN | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| THS3062D | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| THS3062DGNG4 | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
| THS3062DDAG3 | 1 CHANNEL, VIDEO PREAMPLIFIER, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| THS3062DGN | 功能描述:高速运算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback 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 |
| THS3062DGNG4 | 功能描述:高速运算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback 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 |
| THS3062DGNR | 功能描述:高速运算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback 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 |
| THS3062DGNRG4 | 功能描述:高速运算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback 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 |
| THS3062DR | 功能描述:高速运算放大器 Hi-Vltg Hi-Slew-Rate Current Feedback 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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