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參數(shù)資料
| 型號： | THS4302EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | THS4302 Evalutation Module(THS4302評估板) |
| 中文描述： | THS4302 Evalutation模塊（THS4302評估板） |
| 文件頁數(shù)： | 13/25頁 |
| 文件大小： | 674K |
| 代理商： | THS4302EVM |
www.ti.com
APPLICATION INFORMATION
High-Speed Operational amplifiers
The THS4302 fixed-gain operational amplifier set new
performance levels, combining low distortion, high
slew rates, low noise, and a gain bandwidth in excess
of 2 GHz. To achieve the full performance of the
amplifier,
careful
attention
printed-circuit board layout and component selection.
Applications Section Contents
Wideband, Noninverting Operation
Single Supply Operation
Saving Power With Power-Down Functionality
Driving an ADC With the THS4302
Driving Capacitive Loads
Power
Supply
Decoupling
Recommendations
Board Layout
Printed-Circuit
Board
Optimal Performance
PowerPAD Design Considerations
PowerPAD PCB Layout Considerations
Thermal Analysis
Design Tools
Evaluation
Fixtures
Information
Additional Reference Material
Mechanical Package Drawings
_
+
THS4302
R
f
100
49.9
V
I
+
22
μ
F
47 pF
0.1
μ
F
V
S+
50-
Source
R
g
V
O
+
22
μ
F
47 pF
0.1
μ
F
V
S
30.1
30.1
FB
FB
FB = Ferrite Bead
THS4302
SLOS403F–OCTOBER 2002–REVISED FEBRUARY 2004
Figure 44 is the noninverting gain configuration used
to demonstrate the typical performance curves. Most
of the curves were characterized using signal sources
with 50-
source impedance, and with measurement
equipment presenting a 50-
load impedance. In
Figure 44, the 49.9-
shunt resistor at the V
IN
terminal matches the source impedance of the test
generator. The 50-
series resistor at the V
O
terminal
in addition to the 50-
load impedance of the test
equipment, provides a 100-
load. The total 100-
load at the output, combined with the 250-
total
feedback network load, presents the THS4302 with
an effective output load of 71
for the circuit of
Figure 44.
must
be
paid
to
In addition, the devices provide a power-down mode
with the ability to save power when the amplifier is
inactive.
INTERNAL FIXED RESISTOR VALUES
DEVICE
THS4302
GAIN (V/V)
+5
R
f
200
R
g
50
Techniques
and
Layout
Techniques
for
and
Application
Support
WIDEBAND, NONINVERTING OPERATION
The THS4302 is a fixed-gain voltage feedback oper-
ational
amplifier,
with
designed to operate from a single 3-V to 5-V power
supply.
power-down
capability,
Figure 44. Wideband, Noninverting
Gain Configuration
SINGLE SUPPLY OPERATION
The THS4302 is designed to operate from a single
3-V to 5-V power supply. When operating from a
single power supply, care must be taken to ensure
the input signal and amplifier are biased appropriately
to allow for the maximum output voltage swing. The
circuits shown in Figure 45 demonstrate methods to
configure an amplifier in a manner conducive for
single supply operation.
13
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| THS4302RGTT | 功能描述:高速運(yùn)算放大器 Wideband Fixed Gain Amplifier 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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